The satisfaction of our customers is our top priority at Tenka Power. We strive to build long-term partnerships through excellent customer service and the highest quality standards. From initial consultation and planning to installation and after-sales service, we support our customers every step of the way.

Our products undergo strict quality controls to ensure that they meet the highest standards. We use high-quality materials and state-of-the-art manufacturing technologies to guarantee durability and reliability. Certifications and regular audits confirm compliance with international quality standards.

We actively listen to our customers' feedback and use it to continuously improve our products and services. Our customer support is always available to answer questions and provide solutions. With the Tenka Power Cloud, we also enable our customers to monitor and optimize their energy systems in real time.

Transparency and trust are important to us. That's why we openly inform our customers about product features, costs and services. At Tenka Power, you can rely on us to always act in your best interests and work with you to find the optimum solution for your energy needs.

Innovation is the engine that drives Tenka Power. We continuously invest in research and development to create breakthrough energy solutions that are both economically and environmentally valuable. Our goal is to increase energy efficiency through technological advances and accelerate the transition to a sustainable energy future.

Our developers are working on the next generation of photovoltaic modules, inverters and energy storage systems that are even more efficient and durable. By integrating artificial intelligence and smart grid technologies, we are enabling intelligent energy management systems that optimize energy consumption and conserve resources.

We cooperate with leading research institutes and universities to keep our finger on the pulse and incorporate the latest findings into our products. Our innovation projects aim to develop solutions for global challenges such as climate change, energy shortages and environmental pollution.

At Tenka Power, we see innovation not only as technological development, but also as the ability to create new business models and partnerships that have a positive social impact. With our innovations, we want to make a sustainable difference and help shape the world of tomorrow.

Integrity and ethical conduct are fundamental values at Tenka Power. We are aware of the responsibility we bear as a company towards our customers, partners and society. Our compliance guidelinesensure that we act transparently and responsibly in all areas of our business.

We are committed to fair business practices and reject any form of corruption or unethical behavior. Our supply chains are designed to meet the highest ethical standards. We only work with suppliers who share our values and are committed to social and environmental standards.

Data protection and information security are further important aspects of our corporate responsibility. We protect the data of our customers and partners and strictly adhere to all legal requirements and best practices in the area of data security.

Our corporate ethics also extend to the way we treat our employees and the environment. We promote a culture of openness and responsibility in which everyone is encouraged to raise ethical concerns and contribute to improving our processes.

Through regular training and audits, we ensure that our standards are maintained and continuously improved. At Tenka Power, we firmly believe that ethical behavior is not only right, but also essential for long-term success.

Our employees are at the heart of Tenka Power and we place great importance on their development and satisfaction. We believe that a positive working environment that promotes teamwork, diversity and equal opportunities is key to innovation and success. That's why we invest in training opportunities, career development and create a culture where every opinion counts.

We offer regular training courses and workshops to ensure that our employees are always up to date with the latest technology and industry developments. Through internal and external training programs, we promote individual development and enable career paths within the company. Our work culture is characterized by openness, respect and mutual support.

Diversity is not just a buzzword for us, but a lived practice. We value the different perspectives and experiences that each individual brings to the table and see them as an enrichment for our team. Equal opportunities and inclusion are integral parts of our HR policy.

We also promote a work-life balance by offering flexible working hours and models. The health and well-being of our employees is important to us, which is why we support various health programs and leisure activities.

Through these measures, we create a motivating environment in which our employees can develop their full potential. At Tenka Power, we are convinced that satisfied and committed employees are the key to outstanding performance and innovative solutions.

At Tenka Power, we see ourselves as an active part of society and take our social responsibility seriously. We are involved in various social projects and support initiatives that have a positive impact on our communities. These include educational programs in the field of renewable energy, which aim to raise awareness of sustainability and climate protection.

Our employees are encouraged to volunteer and we offer them opportunities and support to do so. Whether by participating in local environmental campaigns, supporting schools in conducting solar energy workshops or cooperating with charitable organizations - we actively promote the community.

We are particularly committed to promoting education and equal opportunities. We support scholarship programs for aspiring engineers and scientists in the field of renewable energy and work with educational institutions to share practical experience and knowledge. Through these initiatives, we aim to inspire the next generation of innovators and give them the tools to shape a sustainable future.

Our social activities are an integral part of our corporate philosophy. They reflect our belief that companies should not only pursue economic goals, but also make a contribution to society. With Tenka Power, you are investing in a company that is committed to social responsibility and the common good.

At Tenka Power, sustainability is at the heart of everything we do. As a provider of renewable energy solutions, we actively contribute to reducing global CO₂ emissions. Our products, from photovoltaic modules and inverters to PV battery storage systems and heat pumps, are designed to achieve maximum energy efficiency and minimize the use of fossil fuels. We use state-of-the-art technologies such as N-Type Back Contact and Nanotech Coating to maximize the energy yield of our systems.

Internally, we follow strict environmental standards and strive to reduce our ecological footprint. This includes energy-efficient production processes, the use of environmentally friendly materials and the minimization of waste through recycling and reuse. We also promote the use of renewable energy in our own facilities and strive to operate in a carbon-neutral way.

Our commitment to climate protection is also reflected in our partnerships. We work closely with organizations that are committed to environmental protection and support reforestation and biodiversity projects. By promoting sustainable practices both internally and externally, we want to make a positive contribution to the environment and ensure a world worth living in for future generations.

We firmly believe that technological innovation and sustainability can go hand in hand. That's why we continuously invest in research and development to create even more efficient and environmentally friendly solutions. With Tenka Power, you are not only choosing high-quality energy solutions, but also a company that takes responsibility for our environment.

EU Limited Product Warranty of TENKA Power GmbH (herein after referred to as "TENKA Power").

Standard Warranty Extension Procedure

The warranty period for inverters can be extended up to a certain period at an additional cost to the customer ("Warranty Extension"). To purchase a warranty extension, customers should contact TENKA Power or an authorized seller within the valid warranty period. Details on pricing and terms are available upon request.

Terms and Conditions of the Extended Warranty

Any warranty extension is subject to and complies with the same terms and conditions as the standard warranty period.

Warranty Service

To make a claim under this EU Limited Product Warranty, the Customer must notify TENKA Power of any nonconformity or defect in workmanship or materials in the Covered Products immediately upon discovery of such nonconformity or defect. To do so, contact the TENKA Power Customer Helpdesk (contact details below) and provide the following information:

• A brief description of the nonconformity or deficiency; including, but not limited to, input and output readings
• Serial number (S/N) of the product
• Model type and model number
• Parameters, alarm ID, cause ID and data exported from the product

Additional information may be required, including, but not limited to:

• Photos of the product and installation site
• original date of commissioning
• PV array configuration
• battery manufacturer and battery type
• description of any modifications that have been performed on the product

The assertion of any claim under this EU Limited Product Warranty is conditioned upon the provision of this information.

The terms of the warranty do not extend the warranty period that begins with the delivery of the goods of Tenka Solar to the first buyers. The warranty only applies if the buyer promptly notifies in writing to the appropriate seller or to TENKA Power the defect/s, misbehavior /or degradation/power loss, enclosing evidence of the original invoice or sales receipt indicating the date of delivery, the type of product and the serial number.

TENKA Power Customer Helpdesk can be contacted via

• Phone: +43 6133 40183
• E-mail: support@tenkapower.com
• Online technical support: tenkapower.com

Customers can find the products user manual and other information on TENKA Power website.

Version October 2024_V1

EU Limited Product Warranty of TENKA Power GmbH (herein after referred to as "TENKA Power").

Warranty on the Product

TENKA Power guarantees that the Product sold to Buyers will have no defects in materials or workmanship resulting in impediments to the power generation of the Products for normal use, conditions and specifications, for its installation, operation and maintenance. The TENKA Power EU Limited Product Warranty is not a guarantee of durability and does not include device availability.

The warranty refers only to the proper operation of the product, so that any changes in color, shape or appearance whatsoever (including, but not limited to, any scratches, stains, mechanical wear, rust, mold, deformation, discoloration or changes in color) do not constitute any defect or flaw in the context of the present Limited Product Warranty. Damage to the Products due to external causes (meaning causes not attributable to the Product itself or its components) is not covered by this EU Limited Product Warranty.

Warrantor

The warrantor is TENKA Power. TENKA Power reserves the right to have the services specified in this TENKA Power EU Limited Product Warranty conducted by TENKA Power authorized partners.

Warranty Eligibility

The persons who are eligible to raise claims under this TENKA Power EU Limited Product Warranty are only (i) buyers that have purchased the devices themselves and have put them into operation for the first time (herein "Initial Operator") and (ii) buyers that have acquired the devices legitimately and with no modifications from the Initial Operator or the Initial Operator's legal successor(s). The persons eligible under this TENKA Power EU Limited Product Warranty are herein referred to as "warranty claimant". Other persons are not authorized to assert claims against TENKA Power under this TENKA Power EU Limited Product Warranty. However, the warranty claimant may appoint a third party to raise its claims under this TENKA Power EU Limited Product Warranty. Assigning and/or transferring these rights to persons other than a warranty claimant is not permitted.

Covered Products and Warranty Periods

This EU Limited Product Warranty applies to the "Covered Products" listed in the table below. It is only valid for the "Warranty Period" specified in the table below and is subject to the following conditions.

Warranty Period Commencement

The warranty period for all products begins on the date when the device is first commissioned (as per the commissioning report) or on the date of the invoice to the first warranty claimant, whichever is later.

Warranty Specification for TENKA Power Storage (ESS)

Battery Pack Product: TENKA Power Storage Battery Module 2.5KWH-3
Warranty Period: 10 years

Minimum throughput capacity (for 2.5 kWh):

• 6.6 MWh (exclusively for the product installed in Germany, Austria and Switzerland)Availability @EOL (end of life): 80%Warranty extension: Not applicable
• 8.2 MWh (or the product installed in EU countries other than Germany, Austria and Switzerland)Availability @EOL (end of life): 60%Warranty Extension: Not applicable

Notes:

1. For Products installed in Germany, Austria and Switzerland, TENKA Power warrants that the Product will retain 80% of usable energy for either ten (10) years from the date of shipment by TENKA Power or for a minimum throughput of 6,6 MWh from the date of commissioning by the customer (authorized electrician), whichever occurs first. For Products installed in EU countries other than the countries mentioned before, TENKA Power warrants that the Product will retain 60% of the usable energy for either ten (10) years from the date of shipment by TENKA Power or for a minimum throughput of 8,2 MWh from the date of commissioning by the customer (authorized electrician), whichever occurs first.
2. The battery warranty becomes effective when either the warranty period is reached, or the discharge cycle is completed, and the remaining capacity (EOL) meets the specification requirements. The TENKA Power Battery Management Unit is only covered by the warranty period and has no effect on battery performance. The battery pack and the power module each have their own independent warranty.
3. Capacity test conditions: The test is carried out at an ambient temperature of 25°C ±3°C, after full charging to 100% SOC, a rest period of 10 minutes and subsequent discharge of the tested battery module with a set current of 0.2C up to the final discharge voltage. The amount of current released is recorded.
4. To remotely update the latest firmware and ensure battery life, it is strongly recommended to connect the PV system with battery to TENKA Power's web monitoring and PV management system.
5. Once the battery has been purchased by the customer, installation must be completed within one month. Should the battery fail, this must be reported within one month. Damage to the battery module caused by negligence or prolonged non-charging of the battery is not covered by the warranty.
6. The operation and service life of the battery depend on the operating temperature. Please install the battery at a temperature that is at least equal to the ambient temperature. The recommended operating temperature for the battery is between 15 and 30°C.
7. The product must be installed by qualified and approved personnel or by a TENKA Power authorized partner. Qualified and approved personnel is a trained and skilled electrician or installer.

Standard Warranty Extension Procedure

The warranty period for inverters can be extended up to a certain period at an additional cost to the customer ("Warranty Extension"). To purchase a warranty extension, customers should contact TENKA Power or an authorized seller within the valid warranty period. Details on pricing and terms are available upon request.

Terms and Conditions of the Extended Warranty

Any warranty extension is subject to and complies with the same terms and conditions as the standard warranty period.

Warranty Service

To make a claim under this EU Limited Product Warranty, the Customer must notify TENKA Power of any nonconformity or defect in workmanship or materials in the Covered Products immediately upon discovery of such nonconformity or defect. To do so, contact the TENKA Power Customer Helpdesk (contact details below) and provide the following information:

• A brief description of the nonconformity or deficiency; including, but not limited to, input and output readings
• Serial number (S/N) of the product
• Model type and model number
• Parameters, alarm ID, cause ID and data exported from the product

Additional information may be required, including, but not limited to:

• Photos of the product and installation site
• original date of commissioning
• PV array configuration
• battery manufacturer and battery type
• description of any modifications that have been performed on the product

The assertion of any claim under this EU Limited Product Warranty is conditioned upon the provision of this information.

The terms of the warranty do not extend the warranty period that begins with the delivery of the goods of Tenka Solar to the first buyers. The warranty only applies if the buyer promptly notifies in writing to the appropriate seller or to TENKA Power the defect/s, misbehavior /or degradation/power loss, enclosing evidence of the original invoice or sales receipt indicating the date of delivery, the type of product and the serial number.

TENKA Power Customer Helpdesk can be contacted via

• Phone: +43 6133 40183
• E-mail: support@tenkapower.com
• Online technical support: tenkapower.com

Customers can find the products user manual and other information on TENKA Power website.

Product Substitute

Upon receipt of a warranty claim, TENKA Power will check whether the claim is covered by the EU Limited Product Warranty. If the claim is not covered, TENKA Power will notify the customer, stating the reasons for the rejection. If the claim is covered, TENKA Power will provide the customer with a replacement product.

In any case, the warranty claimant must accept a replacement device even if it has cosmetic defects that do not affect energy production or safety compliance. TENKA Power will, at its sole discretion, use new and/or equivalent to new devices or parts in the original or the improved design.

If TENKA Power chooses to provide a replacement product, the replacement product will generally be delivered within three to five (3-5) working days (Monday to Friday, excluding public holidays) after the warranty claim is recorded, investigated and confirmed to the location within the European Union specified by the customer. Within fifteen (15) working days of receipt of the replacement Product, the customer must return the defective product to TENKA Power in the original packaging or in the packaging of the replacement product (or otherwise in safe and secure packaging to avoid damage in transit).

TENKA Power reserves the right to charge the customer for the cost of the defective product. By asserting a warranty claim, the customer agrees to bear these costs if:

• A replacement product has been sent to the customer, but the defective product is not returned within the specified period.
• The product is not returned to TENKA Power on time
• A Covered Product has been returned without Return Material Authorization (RMA)
• Upon inspection a returned Covered Product does not match the product described in the warranty claim
• Upon inspection, it is determined that the Covered Product is not covered by this EU Limited Product Warranty, or the EU Limited Product Warranty has been voided as described below.

Payment of the Fee for the Use of the Installer and the Transportation Costs for the Product in the Event of Faults

Notice:

If, during the Warranty Period, a Covered Product is found to have a defect in workmanship or materials or a nonconformity that occurs under normal use, TENKA Power will replace the Covered Product under this EU Limited Product Warranty T&C's with an equivalent product (either new or refurbished product) in accordance with the following terms and conditions.

These terms also apply to any replacement Product provided by TENKA Power under this EU Limited Product Warranty. A replacement Product is the Customer's sole remedy for any nonconformity or defect in the Covered Products.

If the replacement product is a TENKA Power Center inverter, TENKA Power Storage battery storage or TENKA Power Charger the remaining warranty period or 6 months from the replacement date, whichever is longer, applies. If the replacement product is a TENKA Power Logger Ai, TENKA Power Dongle, TENKA Power Guard, TENKA Power Meter the remaining warranty period or 3 months from the replacement date, whichever is longer, applies.

Special Information on the Shipping of a Replacement Device

TENKA Power will at its discretion send a replacement device that has an equal value in terms of product type, output power class, storage capacity or age to the warranty claimant or to a different delivery address communicated in advance by the warranty claimant. This replacement device will be sent either in advance or after prepayment of the value of the replacement device and the costs of delivery, or after receipt of the defective device. Provided the warranty claimant was trained by TENKA POWER to perform an assembly replacement independently, TENKA Power reserves the right to send an assembly in place of a replacement device.

As required by TENKA Power, the warranty claimant must return the defective device or defective assembly at his own risk in a packaging that is suitable for its transportation to an address defined by TENKA POWER that will be located within the same country that the replacement device or the assembly is shipped from.

TENKA Power will bear the costs for transport or shipping of the replacement device or the assembly as well as the costs for return transport (including export certifications, inspections, and customs duties).

TENKA Power will also retain ownership of an assembly until it receives the defective assembly. After an exchange, the replacement device becomes the property of the customer.

If TENKA POWER has decided to request from the warranty claimant the prepayment of the value of the replacement device or the assembly before delivery of the replacement device or the assembly, TENKA POWER will refund to the warranty claimant the amount received by the warranty claimant as prepayment of the value of the replacement device or the assembly once the warranty claimant has returned to TENKA POWER the defective device or the defective assembly, the defective device or defective assembly has been received by TENKA POWER and this defective device or defective assembly does not have any further defects not previously made known to TENKA POWER.

Should the warranty claimant return the defective device or the defective assembly more than fifteen (15) working days after receipt of the replacement device or the assembly, then TENKA POWER has the right to charge the warranty claimant for the cost of administering the overdue Return Material Authorization (RMA) account. Return items will not be accepted without a valid RMA number obtained from TENKA POWER that is clearly displayed on the returned items packaging.

Specific Information on the Coverage of Other Costs

TENKA Power will inform the warranty claimant of any costs (including, but not limited to transportation, replacement device value, export certifications, inspections, customs duties, travel, or accommodation) that require payment in advance of the repair action. The repair will be performed depending on the warranty claimant's consent to cover these costs.

Impact of Warranty Coverage on the (Remaining) Warranty Period

If the entire device is replaced under this TENKA Power EU Limited Product Warranty, the remainder of the warranty period will be transferred to the replacement device. If device components are replaced or repaired under this TENKA Power EU Limited Product Warranty, the components used will be covered by the same remainder of the warranty period as the repaired device.

Limited Coverage

This EU Limited Product Warranty applies only to the hardware of the Covered Products and not to components that are separate from the Covered Products, such as ancillary equipment, consumables and mechanical parts for assembly or protective coatings that degrade over time (unless the defect is due to a defect in materials or workmanship).

This EU Limited Product Warranty applies only to customers who have purchased the covered products directly from TENKA Power or from an authorized seller of TENKA Power in the countries of the European Union (excluding islands). TENKA Power only covers transportation in the European Union countries (islands are not included).

This EU Limited Product Warranty applies only if installation, removal and reinstallation have been carried out in accordance with the installation instructions and user guidelines provided with the covered products ("Documentation").

This EU Limited Product Warranty becomes invalid if the serial number of the covered product has been removed or defaced.

Exceptions

This EU Limited Product Warranty does not cover defects or damage resulting from the following causes:

• Improper installation or use of the Product with respect to the user manual provided by TENKA Power
• Handling, installation, operation and maintenance or any other interaction of sort with the Products by unskilled or untrained personnel
• By personnel that is not qualified under the standards of the Country in which the Product is installed, or not in compliance with TENKA Power installation and operating instructions or with the law of the Country in which the Product is installed
• Customer's failure to install and operate the Covered Product in accordance with TENKA Power product specifications
• Use of the Covered Product other than normal and customary use
• Unauthorized disassembly, repair, alteration or modification
• Misuse, abuse, intentional damage, negligence or accidental damage
• Improper testing, operation, maintenance or installation, including without limitation
• Failure to comply with written system requirements for a safe operating environment or external electrical parameters
• Failure to maintain the Covered Products in accordance with the relocation and installation of the system other than in accordance with TENKA Power's requirements
• Damage caused by incorrect and/or over voltage
• Damage directly caused by problems in the system infrastructure
• Improper storage, shipment, handling, or use of the Covered Products
• Changes, removal, damage or any other act resulting in the name plate or serial number of the Product to be illegible
• Force majeure events (including but not limited to acts of hostility, sabotage, riots, fire, floods, typhoons, explosions, or other Force majeure events (including, but not limited to, acts of foreign enemies, acts of domestic or foreign governments or authorities, sabotage, riots, fire, floods, typhoons, explosions or other disasters, epidemics or quarantine restrictions, labor unrest or labor shortages, accidents, freight embargoes or other events beyond TENKA Power's control) for the period caused by such event.
• The EU Limited Product Warranty does not cover cosmetic damage or superficial defects, dents, stains or scratches that do not affect the proper functioning of the covered product.

TENKA Power has the exclusive right to appoint representatives for verification of the relevant circumstances. In any case, the Buyer acknowledges that the maximum aggregate liability for TENKA Power for defective/non-performing Products under this EU Limited Product Warranty amounts to the purchase price of the defective/non-performing Products. The Buyer acknowledges this limitation as an essential element of this EU Limited Product Warranty, as well as the impact of this limitation on the purchase price of the Products (which would be significantly higher).

Limitation of Liability

This TENKA Power EU Limited Product Warranty is in lieu of all other warranties, conditions or guarantees as to the description, quality, fitness for a particular purpose, satisfactory or merchantable quality of the Covered Products or any other express or implied warranty, condition or guarantee.

TENKA Power shall not be liable in contract, tort or otherwise for any nonconformity or defect in the Covered Products or for any injury, damage or loss resulting from such nonconformity or defect, or for any loss of contract, loss of revenue, loss of use or profit, or loss of business, business interruption or additional operating expenses, or indirect, consequential or economic damages or losses of any kind or nature whatsoever and howsoever caused. The remedies set forth in this EU Limited Product Warranty are the Customer's sole and exclusive remedy with respect to any nonconformity or defect in the Covered Products.

Notwithstanding the foregoing, this EU Limited Product Warranty does not limit TENKA Power's liability for:

• Death or bodily injury
• Fraud or fraudulent misrepresentation
• any other liability which cannot be limited or excluded by law.

General

• Modifications, extensions or additions to this EU Limited Product Warranty may only be made by an authorized representative of TENKA Power.
• If any provision of this Limited Product Warranty is found by a court or arbitration to be invalid or unenforceable, the validity or enforceability of the remaining provisions of this EU Limited Product Warranty shall not be affected, and they shall remain in full force and effect.

Force Majeure Events

TENKA Power shall not be held responsible or liable for any instance of non-performance or late performance in fulfillment of its eventual obligations (if any) resulting from this warranty in case such instances arise or derive from force majeure events (including, but not limited to, war, riots, strikes, shortages of materials, components or adequate labor, embargos, etc.) or generally from any event which was not in place nor could reasonably be understood at the date in which the Products are sold by TENKA Power or at the date in which the notification under this warranty was received by TENKA Power.) or in general from any event which was not in place nor could be reasonably understood at the date in which the Products are sold by TENKA Power or at the date in which the notification of the claim under this warranty is received by TENKA Power. When such events become of public domain, after having occurred, the Buyer of the defected Products or the Buyer who has initiated a claim is intended to be automatically aware of the occurrence of the force majeure event and of its consequences on the course of the claim under this warranty.

Validity

This warranty applies to Products delivered to Buyers by TENKA Power from January 1, 2023. Until a new version is approved by TENKA Power and published through TENKA Power's website www.tenkapower.com, this document remains valid. TENKA Power will notify customers of any significant changes to this warranty via its website or direct communication.

The rights mentioned in this TENKA Power EU Limited Product Warranty reflect the exclusive rights of the warranty claimant in accordance with this TENKA Power EU Limited Product Warranty. No other claims - including, but not limited to, claims for compensation for direct or indirect damage caused by the defective device, claims for compensation for costs arising from disassembly or installation, and/or loss of power production or profits - are covered by the TENKA Power EU Limited Product Warranty. If the warranty claimant requests unnecessary or unjustified service work and/or TENKA Power replacements under this TENKA Power EU Limited Product Warranty, TENKA Power shall be entitled to invoice the warranty claimant for the costs incurred as a result.

The warranties expressly set forth above and herein are the exclusive warranties made by TENKA Power with respect to the devices. UNLESS AND TO THE EXTENT ANY MANDATORY APPLICABLE LAWS PROHIBIT SUCH CONSTRAINT; TENKA POWER DISCLAIMS ALL OTHER WARRANTIES, CONDITIONS AND OBLIGATIONS OF ANY KIND WHATSOEVER, EXPRESSED OR IMPLIED, WHETHER STATUTORY OR OTHERWISE, INCLUDING FOR GREATER CERTAINTY, ANY IMPLIED WARRANTIES OF MERCHANTABLE QUALITY, MERCHANTIBILITY, OR FITNESS FOR A PARTICULAR PURPOSE.

Firmware Disclaimer

TENKA Power periodically provides firmware updates at TENKA Power's sole discretion on TENKA Power purchased products. Such firmware updates are made available to the warranty claimant "as is" and normally at no additional cost. TENKA Power does not assume any obligation for the reimbursement of expenses and providing any maintenance, support, further updates, or

configuration changes resulting out of or in connection with the TENKA Power firmware update. Unless there is evidence of willful or grossly negligent fault on the part of TENKA Power, TENKA Power does not assume any liability for direct, indirect, incidental, or consequential damages, including loss of production, loss of profits or any additional expenses, which resulted from or in connection with the TENKA Power firmware update, regardless of whether it is carried out remotely or manually, even if the user has been informed of the possibility of such damage.

The statutory warranty obligation of the device seller and the corresponding statutory warranty rights of the buyer which may not lawfully be excluded or limited are not affected by this firmware disclaimer.

Applicable Law and Place of Jurisdiction

• All claims arising from or in connection with this TENKA Power EU Limited Product Warranty are subject to Austrian law with the exclusion of the United Nations Convention on Contracts for the International Sale of Goods (CISG). However, if the warranty claimant is a consumer as defined in Art. 6 of Regulation (EC) No 593/2008 and TENKA Power has (i) either pursued our commercial or professional activities in the country where the consumer has his habitual residence, or (ii) by any means, directed such activities to that country or to several countries including that country, and (iii) this TENKA Power EU Limited Product Warranty falls within the scope of such activities, then the choice of Austrian law as stated in this paragraph does not have the result of depriving the consumer of the protection afforded to him by provisions that cannot be derogated from by agreement by virtue of the law of the country where the consumer has his habitual residence.
• Wels, Austria, is the exclusive place of jurisdiction for all disputes arising from or in connection with this TENKA Power EU Limited Product Warranty provided that the warranty claimant is a Merchant, a legal entity under public law or special assets under public law.
• In the event the claimant is a consumer, whose residence or habitual residence is in the European Union or in Countries which are contracting parties to the Agreement on the European Economic Area, the following shall apply: TENKA Power is in favor to attend a dispute settlement procedure at the General Consumer Conciliation Body of the Centre for Conciliation in Austria: Verbraucherschlichtung Austria, Mariahilfer Straße 103, Stiege 1, Top 18, 1060 Vienna.

Miscellaneous

Unless otherwise agreed with TENKA Power, with an agreement to be formalized in writing, this warranty is the only existing explicit warranty on the Products sold and delivered by TENKA Power to the Buyer. TENKA Power reserves the right of final interpretation of this warranty.

The content of this warranty document can change at any time, without any obligation to TENKA Power to actively communicate such changes to Buyers. The latest version can be found on Tenka Solar website www.tenkapower.com.

Version October 2024_V1

Text follows

Solar panels are considered one of the most environmentally friendly energy sources as they generate renewable energy directly from sunlight. Unlike fossil fuels, solar panels do not produce greenhouse gas emissions when generating electricity, making them a key solution in the fight against climate change. The use of solar systems helps to reduce CO₂ emissions and reduces the need for environmentally harmful fossil fuels.

While the production of solar modules requires energy and resources, the ecological footprint over the lifetime of the system is very small. Modern solar modules have a lifespan of 25 to 30 years and are largely recyclable. This means that the environmental impact of production and operation is significantly lower compared to conventional energy sources such as coal or natural gas.

Solar systems also offer the advantage that they can be installed decentrally, whether on roofs, open spaces or in rural areas. This minimizes energy losses due to long transport routes. All in all, solar systems are a clean, efficient and environmentally friendly way of meeting energy requirements and protecting the environment at the same time. Investing in a solar system is therefore not only an economical decision, but also a significant contribution to climate protection.

The space required for a solar installation depends mainly on the desired output and the solar modules used. An average solar system requires around 6 to 10 square meters of roof space for 1 kWp (kilowatt peak). A typical system with 5 kWp, which is enough to cover the electricity needs of an average household, would require around 30 to 50 square meters.

The space requirements can also depend on the efficiency of the solar modules. Highly efficient modules can produce more solar power on less surface area, which reduces the amount of space required. The orientation of the roof and the angle of inclination also play a role, as an optimal orientation to the south and an angle of inclination between 30 and 40 degrees maximizes the efficiency of the modules.

If there is not enough space on the roof, there are also alternatives such as ground-mounted systems, façade installations or carports with solar panels. These options allow you to generate your own solar power even without a large roof. Overall, the available space should be carefully planned in order to exploit the maximum energy potential of the solar system and optimize its cost-effectiveness.

Solar cells offer numerous advantages as an energy source and are an environmentally friendly, sustainable alternative to fossil fuels. By converting sunlight into electrical energy, solar cells provide clean and renewable electricity. They help to reduce dependence on conventional energy sources and at the same time promote the reduction of CO2 emissions, which is an important contribution to climate protection.

A key advantage of solar energy is its inexhaustibility. The sun is an unlimited source of energy, unlike fossil fuels such as coal, oil or gas, which are finite and harmful to the environment. In addition, solar cells produce electricity without noise and without pollutants. This makes them an ideal solution for private households, commercial enterprises and industries that want to rely on a sustainable energy supply.

Solar cells also offer many financial advantages. By using solar power, you can significantlyreduce your energy costs. Installing a solar system is a long-term investment that can quickly pay for itself through savings on electricity costs and government subsidies. In addition, having your own solar system increases the value of your property, as more and more buyers are looking for environmentally friendly and energy-efficient homes.

Continuous technological advances are making solar cells ever more efficient and cost-effective, further increasing the attractiveness of this energy source. Overall, solar cells are a future-proof solution that offers both economic and environmental benefits.

Solar cell maintenance is crucial to ensure the maximum efficiency and longevity of your solar installation. Although solar cells are generally very low maintenance, regular inspections and cleaning can significantly improve performance. Dirt, dust, leaves or bird droppings can affect energy production , which can lead to reduced performance.

Regular cleaning of the solar cells is particularly important in regions with high levels of dust or air pollution. Clean solar modules capture more sunlight and therefore produce more electricity. It is advisable to check and clean the modules at least once a year, especially after heavy storms or long dry periods during which dirt can accumulate.

In addition to cleaning, inspection of the electrical components plays an important role. The inverter, cabling and fastening elements should be checked regularly for damage. A well-maintained system not only ensures higher electricity production, but also extends the service life of your solar installation. Problems such as faulty cabling or damaged modules can be detected and rectified at an early stage before they cause major damage.

The investment in regular maintenance is small compared to the potential losses caused by inefficient solar cells. With careful maintenance, your system will remain productive and efficient for many years. A well-maintained solar system therefore not only offers you financial benefits, but also makes a major contribution to the energy transition.

Solar cells are a key component of the global energy transition and play a crucial role in accelerating the transition from fossil fuels to renewable energy. By converting sunlight directly into electricity, solar cells provide a clean, sustainable source of energy with zero CO2 emissions. This makes them an essential tool in the fight against climate change.

A major advantage of solar cells is their flexibility. They can be installed on roofs, in solar plants or in open spaces to generate clean electricity without harming the environment. These decentralized energy sources reducedependence on central power grids and create new opportunities for self-determined energy production.

The use of solar cells makes it possible to reduce energy consumption and at the same time reduce dependence on fossil fuels such as coal, gas and oil. This helps to reduce CO2 emissions and combat climate change. In combination with storage technologies and intelligent energy management systems, solar cells can ensure a constant supply of energy, even when the sun is not shining.

Together with other renewable energy sources such as wind and hydropower, solar cells play a key role in creating a sustainable, clean and climate-friendly energy system. Their continuous further development ensures that the energy transition progresses faster and the share of renewable energies increases worldwide.

Solar cells have seen a considerable increase in efficiency in recent years. Modern solar cells utilize a larger proportion of solar energy and achieve efficiencies of up to 24% and more. The efficiency depends on the technology used. Monocrystalline solar cells offer the highest efficiency, followed by polycrystalline and thin-film solar cells. These advances make it possible to generate a significant amount of electricity even with less solar radiation.

Choosing the right solar cells plays a decisive role in the cost-effectiveness of the entire system. Monocrystalline solar cells are more expensive, but their higher efficiency means that they make better use of the available space on the roof. Polycrystalline solar cells are cheaper, but have a lower efficiency, which means that more space is required to generate the same amount of electricity.

Another aspect that influences efficiency is the environment. Dust, dirt and shade can reduce the energy yield. For this reason, it is important to clean the solar cells regularly and ensure that they are optimally aligned to capture the maximum amount of sunlight.

The continuous development of solar cell technology ensures that efficiency continues to improve. New materials and technologies such as multi-junction solar cells, which use different spectra of light, could enable even higher efficiency values in the future.

The amount of electricity that a solar system produces depends on several factors. These include the size of the system, the efficiency of the solar modules, the solar radiation at the location and the orientation and inclination of the solar modules. Under ideal conditions, a well-planned solar system can generate a considerable amount of electricity, which can be used both for self-consumption and for feeding into the grid.

In regions with high levels of solar radiation, a solar system can generate between 900 and 1,300 kilowatt hours of electricity per installed kilowatt peak (kWp) per year. The exact output varies depending on the geographical location and the efficiency of the installed modules. Modern solar modules have a high degree of efficiency and can produce electricity even in cloudy weather or indirect sunlight.

By combining this with a battery storage system, the surplus electricity produced can also be stored for later, which increases energy independence. This is particularly advantageous as it minimizes dependence on external energy suppliers and maximizes self-consumption.

A well-planned solar system can cover the entire electricity requirements of a household or business and also feed surplus energy into the public grid, which is additionally rewarded by feed-in tariffs. With the right dimensions and orientation, your solar system will become an efficient and sustainable source of energy.

The inverter is a central component in every solar power system, as it converts the direct current (DC) generatedby the solar modulesinto alternating current (AC), which is used in households and in the electricity grid. Without an inverter, the electricity generated would not be usable for most applications. Its role is therefore crucial in making the energy from the solar system available for everyday use.

An efficient inverter ensures that most of the electricity generated by the solar modules is converted into usable alternating current, minimizing losses during the conversion process. Inverters are available in various designs, depending on the size and type of solar system. They constantly monitor the performance of the system and optimize the flow of electricity, resulting in a higher energy yield.

In addition to converting electricity, the inverter also performs important safety functions, such as protection against overloads and short circuits. Modern inverters also have smart functions, such as remote monitoring via apps or integration into energy management systems. These functions offer real-time monitoring and make it possible to optimally control the performance of the solar system.

A high-quality inverter therefore makes a significant contribution to the efficiency and longevity of the entire solar system. It ensures maximum energy yield and protects the system from potential damage.

A solar system not only offers ecological benefits, but also significant economic advantages. By using solar power, you can significantly reduce your electricity costs in the long term and contributeto the energy transitionat the same time. The investment in a photovoltaic system usually pays for itself within a few years, depending on the location and solar radiation.

1. Saving on energy costs: By producing your own electricity, you reduce your dependence on rising energy prices. Every kilowatt hour that you generate yourself reduces your monthly electricity bill. This leads to considerable savings over the lifetime of the system.

2. Attractive subsidies: Government subsidy programs and feed-in tariffs make the purchase of a solar system even more lucrative. Many countries offer attractive financial incentives for the purchase and installation of photovoltaic systems, which shortens the amortization period and increases profitability.

3. Increasing the value of your property: Installing a photovoltaic system can increase the value of your property. As more and more buyers are paying attention to energy efficiency, a property with a solar system is seen as more attractive. This can have a positive effect on the resale value.

In addition to the financial benefits, the use of solar energy offers a secure and long-term solution for energy generation that is independent of fossil fuels. This protects you from future price fluctuations on the energy market and contributes to the sustainability of your household or business.

A complete PV solution offers you a customized, comprehensive solution for your energy supply. These systems combine various components, such as solar modules, inverters, battery storage and sometimes also wallboxes, to get the maximum benefit from your photovoltaic system. The biggest advantage is that everything is perfectly coordinated, which increases the efficiency and performance of your system.

The first advantage of a complete PV solution is maximum energy independence. By using a battery storage system, you can store surplus solar power and also use it in the evening or on cloudy days. This not only lowers your energy costs, but also reduces your dependence on the public power grid. A well-dimensioned complete solution can enable you to achieve a self-consumption rate of up to 80 %.

Secondly, integrating a wallbox into the system allows you to charge your electric car efficiently with self-generated solar power. This significantly reduces your mobility costs and contributes to sustainability at the same time. You make optimum use of the electricity produced by your PV system and have less need to resort to more expensive grid electricity.

Thirdly, an integrated energy management system ensures that the electricity generated is distributed and used intelligently. The system monitors your energy consumption and ensures that all components of the complete PV solutionwork together efficiently. This maximizes your electricity savings and ensures smooth operation.

Overall, a complete PV solution offers many advantages, from greater energy independence and cost savings to better use of solar power for your mobility and home technology. With such a solution, you are ideally prepared for the future, both ecologically and financially.

The profitability of photovoltaic systems is a decisive factor for investors and homeowners who want to invest in solar energy. A well-planned photovoltaic system can quickly pay for itself through various financial benefits and offer long-term savings. Profitability depends on several key factors:

1. Acquisition costs and subsidies: The investment costs for photovoltaic systems include the purchase of solar modules, inverters, mounting systems and possibly battery storage. Government subsidy programs and tax benefits can significantly reduce these initial costs and improve profitability.

2. Electricity production and self-consumption: The amount of solar power generated and the proportion of self-consumption aredecisive for the return on investment. The more electricity you consume yourself, the less you have to buy from the more expensive grid, which leads to savings in electricity costs.

3. Feed-in tariffs: Surplus solar power that is fed into the public grid can be financially rewarded through feed-in tariffs. These feed-in tariffs offer an additional source of income and increase the profitability of your photovoltaic system.

4. Maintenance and service life: Photovoltaic systems are generally very low-maintenance and have a long service life of up to 25 years or more. Low maintenance costs and high system reliabilitycontribute to long-term profitability.

5. Energy prices and inflation: Rising energy prices increase the savings that can be achieved with a photovoltaic system. Inflation can also cause future electricity costs to rise further, which improves the return on your investment.

A comprehensive profitability analysis taking these factors into account shows that photovoltaic systemsare an attractive and profitable investment. With the right subsidies, an efficient system design anda high proportion of self-consumption, you can achieve a solid return and make an important contribution to environmental protection at the same time.