Please find enclosed the Annual Report of Solarworld Energy Solutions Limited for the financial year 2025-26.

September 8, 2026 To, To, BSE Limited National Stock Exchange of India Limited Phiroze Jeejeebhoy Towers, Exchange Plaza, Plot no. C/1, G Block, Dalal Street, Bandra-Kurla Complex Mumbai – 400001 Bandra (E), Mumbai - 400051 Scrip Code: 544532 Symbol: SOLARWORLD Subject: Submission of Annual Report for the financial year 2025-26 pursuant to Regulation 34 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015 Dear Sir/Madam, The 13th Annual General Meeting (“AGM”) of the Members of the Company will be held on Wednesday, September 30, 2026 at 3:00 p.m. (IST) through Video Conferencing (“VC”) /Other Audio Visual Means (“OAVM”), in compliance with the applicable provisions of the Companies Act, 2013 and the rules made thereunder, read with the relevant circulars issued by Ministry of Corporate Affairs (“MCA”) and Securities and Exchange Board of India (“SEBI”). Pursuant to Regulation 34(1) of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, as amended, please find enclosed herewith the Annual Report of the Company for Financial Year ended on March 31, 2026 and the same is also available on the Company’s website at the following link: https://worldsolar.in/wp- content/uploads/2026/09/Annual-Report_2025-26.pdf. Kindly take the same on your record. Thanking you. Yours faithfully, For Solarworld Energy Solutions Limited (Formerly known as Solarworld Energy Solutions Private Limited) Varsha Bharti Company Secretary and Compliance Officer Membership No.: A37545 Encl. A/a Advancing the Renewable Frontier Expanding Capacity | Powering Growth Solarworld Energy Solutions Limited Annual Report 2025-26 Advancing the Contents Renewable Frontier Corporate Statutory 01-25 26-121 Overview Reports Expanding Capacity | Powering Growth 04 About Solarworld 26 Management Discussion & Analysis 06 Financial highlights 43 Notice 08 Message from Chairman and 62 Board’s Report Managing Director 91 Corporate Governance Report 10 Milestones and Achievements 12 Key Projects Financial 14 India’s Renewable Energy Sector 122-262 Statements India’s renewable energy sector is entering a defining 16 Strategy for Sustainable Growth phase. The focus is steadily shifting from adding 18 Integrated Business Model 122 Standalone Financial Statements generation capacity to creating an energy ecosystem 20 Technology and Innovation 189 Consolidated Financial Statements 22 Our Board that is dependable, integrated and resilient. As 24 Key Managerial Personnel and renewable energy assumes a larger role in the country’s Senior Management Personnel power mix, the emphasis is increasingly on solutions 25 Awards and Recognitions that combine solar generation with energy storage, enhance grid stability and deliver reliable power across diverse applications. This transformation is reshaping the industry’s priorities and creating opportunities for businesses capable of delivering far more than conventional project execution. Solarworld has aligned its strategy with For us, expanding capacity is not confined this transformation. Over the past year, we to increasing manufacturing output or have broadened our presence across the executing larger projects. It is about renewable energy ecosystem by advancing enhancing every capability that shapes the our manufacturing platform, expanding into future of our business—from technology battery energy storage, deepening backward and engineering to manufacturing, integration and reinforcing our project execution and energy storage. Each execution capabilities. In addition, we have advancement strengthens our ability to continued to invest in technology, innovation deliver with greater speed, quality and and operational excellence, recognising that reliability while creating a platform that the next phase of industry leadership will be is adaptable to a rapidly evolving industry. defined by the ability to deliver integrated, As we continue to broaden our horizons, high-performance energy infrastructure we remain committed to shaping a more rather than standalone solutions. Strategic integrated renewable energy ecosystem partnerships and a diversified customer and contributing meaningfully to India's portfolio further enhance our ability to transition towards a cleaner, more secure respond to evolving market requirements and sustainable energy future. while creating a stronger and more balanced business. SOLARWORLD ENERGY SOLUTIONS LIMITED Corporate Overview Statutory Reports Financial Statements FORMERLY KNOWN AS SOLARWORLD ENERGY SOLUTIONS PRIVATE LIMITED About Solarworld Built in India, for India Solarworld Energy Solutions Limited is an integrated Solar EPC Company engaged in the design, engineering, procurement, construction, operation and maintenance Vision Our Values of solar power generating system and battery energy storage projects. The Company provides end-to-end solutions for utility-scale and commercial Renewable Energy Equal- Ethical projects under both CAPEX and RESCO business models, catering to public sector Our vision is to deliver Opportunity to all undertakings and private sector customers. high-quality, cost-effective Respect for Diversity sustainable renewable Transparent (gender, geography, religion, The Company has an expanding presence across solar EPC, battery energy storage energy solutions for language, etc.) systems (BESS) and Solar Panel manufacturing. It has developed capabilities businesses and across Respect across project execution, operations and maintenance and domestic manufacturing, diverse markets, aiming to Environmentalism for the individual reduce carbon footprints and enabling the Company to deliver reliable, cost-effective and end-to-end clean champion the shift toward energy solutions tailored to the customers' evolving requirements. clean energy. By doing so, we strive to enhance the Key Highlights quality of life for present and future generations. 60+ 348 MW DC Solar and renewable energy projects EPC portfolio installed executed and under execution Mission 1,809 MW DC 1,164 MWh Ongoing Solar EPC Capacity Ongoing BESS Capacity At Solarworld Energy Solutions Limited, we are 1.552 GW 3.4 GW committed to responsibly envisioning, designing TOPCon solar module manufacturing Battery Energy Storage System (BESS) facility commissioned in manufacturing facility and executing innovative Roorkee, Uttarakhand solar power projects. Our mission is to bring 5 GW 2.4 GW sustainable growth and Junction Box Manufacturing Capacity Solar cell manufacturing facility under innovation while maximising development with proposed JV, targeted shareholder value through for commissioning by June 2027 strategic investments in renewable energy solutions FY26 total income of FY26 PAT of 14,160 million 1,204 million for businesses and communities alike. Driven up 157% year-on-year up 56% year-on-year by the ‘Human Energy’ within the Solarworld Energy Solutions Limited family, we are dedicated to shaping a cleaner and brighter tomorrow. 4 Annual Report 2025-26 5 SOLARWORLD ENERGY SOLUTIONS LIMITED Corporate Overview Statutory Reports Financial Statements FORMERLY KNOWN AS SOLARWORLD ENERGY SOLUTIONS PRIVATE LIMITED Financial highlights Growth that Mirrors in Numbers Total Income (INR in Mn) Revenue from Operations (INR in Mn) FY 2026 14,160.7 FY 2026 13,761.6 FY 2025 5,510.85 FY 2025 5,447.65 FY 2024 5,055.02 FY 2024 5,010.16 EBITDA (INR in Mn) PAT [Profit After Tax] (INR in Mn) FY 2026 1,879.26 FY 2026 1,204.7 FY 2025 1,155.67 FY 2025 770.48 FY 2024 733.45 FY 2024 516.91 Return on Capital Employed [ROCE] (%) Return on Equity [ROE] (%) FY 2026 34.26 FY 2026 20.83 FY 2025 54.53 FY 2025 40.27 FY 2024 86.57 FY 2024 108.25 6 Annual Report 2025-26 7 SOLARWORLD ENERGY SOLUTIONS LIMITED Corporate Overview Statutory Reports Financial Statements FORMERLY KNOWN AS SOLARWORLD ENERGY SOLUTIONS PRIVATE LIMITED Message from Chairman and Managing Director Our achievements during [Showing first 8,000 characters — download PDF for full document]