#1BKW Green Bond 2022 Investor Presentation, 5th April 2022#2BKW strives to issue a CHF Green Bond Target issue date April 2022 Maturity profile MCHF Target size CHF Benchmark 1'400 Target maturity 7 1'200 1'000 (Re-)Financing of Use of proceeds 800 Green Eligible Projects 600 400 200 Green Bond with maturity of 7 years fits perfectly into BKWs maturity profile 0 2025 2026 2027 2028 2029 GREEN BOND 22 | BKW | 05/04/2022 Anleihen Schuldverschreibungen Target maturity 2030 2031 2032 2033 2034 2#3Introduction#4Key figures 2021 GREEN BOND 22 | BKW | 05/04/2022 4 Shareholder structure Operating revenue CHF 3.6bn EBIT CHF 0.4bn Funds from operations CHF 0.5bn Liquidity CHF 1.0bn 37.5% Net debt CHF 1.0bn 52.5% Equity / Equity ratio CHF 4.2bn / 35.0% 10.0% Credit Rating A Employees > 10,000 Canton of Berne Groupe E ■Free float#5BKW Business areas Energy Generation (capacity: ~3.2 GW), trading, sales FY2021 nnes Linders Services Services around infrastructure Revenue CHF 1,527m EBIT CHF 140m FY2021 Revenue EBIT CHF 1,527m Employees 930 Employees CHF 96m 8,440 GREEN BOND 22 | BKW | 05/04/2022 5 Grid Distribution grid: -22,000 km FY2021 Revenue CHF 540m EBIT CHF 198m Employees 610#6Strong megatrends driving growth at BKW GREEN BOND 22 | BKW | 05/04/2022 - - Urbanization Growth of metropolitan areas Technologization Climate change - Increased use of technology - Political roadmap High demand for new builds and replacement Greater comfort and complexity - Digitalization of buildings Efficient use of resources Solutions for a future worth living for - Sustainability Transformation of energy system Energy = Buildings Infrastructure 6#7Solutions for a future worth living for#8GREEN BOND 22 | BKW | 05/04/2022 BKW contributes to several of the Sustainable Development Goals* 8 Solutions for a future worth living for 3 GOOD HEALTH AND WELL-BEING 6 CLEAN WATER AND SANITATION 7 AFFORDABLE AND CLEAN ENERGY DECENT WORK AND 16 PEACE, JUSTICE AND STRONG INSTITUTIONS Sustainable Supply Chain LIFE 15 ON LAND 13 CLIMATE ACTION ECONOMIC GROWTH SUSTAINABLE CITIES 11 AND COMMUNITIES BKW 12 RESPONSIBLE CONSUMPTION AND PRODUCTION QO INDUSTRY, INNOVATION 9 AND INFRASTRUCTURE Sustainable Business Operations Sustainable Products and Services о Green Bond Assets contribute significantly to SDGS 7 & 13 (see following slides) For the contribution of BKW to other SDGs please refer to our Sustainability Report 2021 Committed to generate long-term value for the company, the society and the environment * The 17 SDGs are the core element of the United Nations "2030 Agenda for Sustainable Development"#9Growing new renewables portfolio Diversified newrenewables¹) portfolio Focus countries 3 core technologies > 800 MW capacity 100+ production sites in MW capacity GREEN BOND 22 | BKW | 05/04/2022 7 AFFORDABLE AND CLEAN ENERGY 13 CLIMATE ACTION Growing particularly in wind and small hydro 1000 800 600 400 100+ employees 1) Wind, Small hydro, Solar, Biomass Ambition of 75 % renewables capacity achieved in 2022 Installed 200 0 2014 2015 Wind 2016 2017 2018 Small hydro 2019 2020 2021 Solar 4.2022 New ambition: > 1 GW of installed new renewables capacity by 2026 against 2021 baseline of 0.7 GW 9#10BKW Green Bond Framework#11Application of Green Bond Principles as Best Practice Green Bond 22 | BKW | 05/04/2022 11 Aim of BKW Green Bond Framework - Provide transparency to investors Structure of BKW Green Bond Framework Use of proceeds - Process for Project Evaluation and Selection Management of Proceeds - Reporting - Aligned with the Green Bond Principles (GBPs) 2021* - - No material changes relative to the BKW Green Bond Framework 2019 Reviewed by ISS ESG who confirmed alignment with GBPs * Issued by the International Capital Markets Association (ICMA) BKW Green Bond Framework The Green Bond Principles Page of 12 BKW ISS ESG‣#12Use of proceeds Green Bond 22 | BKW | 05/04/2022 12 The BKW Green Bond Framework allows financing for the following Green Bond Categories Renewable Energy Energy Efficiency AFFORDABLE AND 7 CLEAN ENERGY 13 CLIMATE ACTION Green Buildings Terrestrial Biodiversity Conservation 7 AFFORDABLE AND INDUSTRY. INNOVATION CLEAN ENERGY AND INFRASTRUCTURE 11 SUSTAINABLE CITIES AND COMMUNITIES 13 CLIMATE ACTION AND COMMUNITIES SUSTAINABLE CITIES LIFE 15 ON LAND BKW Green Bond: Proceeds used for Green Bond Category "Renewable Energy"#13Process for project evaluation and selection Dedicated cross-departmental Green Bond Committee (GBC) Departments Involved Asset Managers Wind Treasury The GBC's role is to: Green Bond 22 | BKW | 05/04/2022 13 Asset Managers Solar Business development Sustainability Investor relations - Define ESG Criteria applied to Renewable Energy Projects - Review, select, and validate pool of Eligible Green Projects - Validate annual reporting for investors - Monitor and assess potential social and environmental risks of/for the pool of Eligible Green Projects - Ensure alignment with market best practices#14Management of Proceeds. Green Bond 22 | BKW | 05/04/2022 14 Refinance Existing Projects Refinance projects with a commissioning date up to 36 months before the issuance of the Green Bond (lookback-period) New Eligible Projects BKW intends to fully allocate the proceeds within 24 months after the Green Bond issuance date Green Bond issuance date Deviations from the lookback-period will be transparently disclosed in the annual Green Bond report#15Reporting Green Bond 22 | BKW | 05/04/2022 15 - Annual reporting until the maturity or as necessary in the event of material development — Part of BKW Group's annual report; next publication in March 2023 Reporting content - (Re-financed Green Projects - - Description - Aggregated amount of allocation of net proceeds Impact measurement metrics Proportion of net proceeds used for financing versus refinancing Balance of any unallocated proceeds invested in cash and/or cash equivalents Allocation of Green Bond proceeds and impact metrics will be reviewed by an independent auditor#16Green Bond Preliminary Allocation#17GREEN BOND 22 | BKW | 05/04/2022 17 Renewable Energy projects (re-)financed by the Green Bond Type Project Coquelicot Installed Capacity (MW) Status Year of Commissioning Country Preliminary GB allocation (%) 20.7 2018 Wind Julie Camomille PEN LII 11.6 2018 4.6 2018 Operation France 90 24.0 2019 PEN LIII 36.0 2019 Les Oeillets Solar PV Genzano 8.8 19.8 2021 Development 2023 Italy 10 100 Total 125.5 Allocation of Green Bond net proceeds reflects a huge proportion of BKW CAPEX on renewables for 2022#18Preliminary allocation split by... GREEN BOND 22 |BKW| 05/04/2022 18 Country 10% Technology 10% Status 10% 이이이 France Italy 90% Wind Solar 90% 90% Operation Construction 90% of net proceeds are used to partially refinance regulated operating wind farm in France#19Wind Power Plants in France Projects Location BKW stake Year of commissioning Installed capacity Misc. Somme, France 100% 2018-2021 105.7 MW GREEN BOND 22 | BKW | 05/04/2022 19 Existing New projects Project Julie Project Coquelicot Expected yearly production >250 GWh Status Operating#20Solar Power Plant Genzano in Italy GREEN BOND 22 | BKW | 05/04/2022 20 20 Genzano Basilicata Region Italy ▲ Existing New project Project Location BKW stake Expected year of commissioning Planned installed capacity 100% 2023 19.8 MW Expected yearly production 36.8 GWh Status Development phase#21Second Party Opinion#22Positive Second Party Opinion from ISS ESG▷ Green Bond 22 | BKW | 05/04/2022 222 22 Second Party Opinion Green Bond link to issuer's sustainability strategy Alignment of BKW Green Bond Framework with Green Bond Principles Sustainability quality of the Asset Pool Evaluation Consistent with issuer's sustainability strategy Aligned Positive BKW's ESG Performance • Transparency Level HIGH • Rank among 128 companies 51 • Decile Rank 4#23Green Bond 22 | BKW | 05/04/2022 23 Assessment sustainability quality of the Asset Pool by ISS ESG▷ Use of Proceeds Category Contribution or obstruction Renewable energy Wind power Significant contribution Sustainable Development Goals 7 AFFORDABLE AND CLEAN ENERGY 13 7 AFFORDABLE AND CLEAN ENERGY Renewable energy Solar PV Significant contribution Significant contribution of the Green Bond to UN SDGS 7 and 13 CLIMATE ACTION CLIMATE 13 ACTION#24Transaction Overview#25Transaction Overview Green Bond 22 | BKW | 05/04/2022 25 25 Key Terms and Conditions Issuer: Issue Rating: Issuer Rating: Currency: Target Size: Maturity: Format: Denominations: Use of Proceeds: Listing: Covenants: Governing Law: Joint Bookrunners: BKW AG Non-rated A; stable (CS) / A; stable (UBS) / A; stable (ZKB) / A; stable (Vontobel) / A; stable (fedafin) CHF CHF Benchmark [7] years Green Unrated Bond with stand-alone Prospectus in Reg S format; Senior unsecured 5k and multiples Net proceeds of the Green Bond will be used to (re-)finance Eligible Green Projects SIX Swiss Exchange Pari Passu, Negative Pledge (with exceptions), Cross Default (with exceptions) Swiss Law BNP Paribas, UBS and ZKB#26Disclaimer GREEN BOND 22 | BKW | 05/04/2022 26 This presentation contains forward-looking statements which are made on the basis of current expectations and assumptions. These forward-looking statements involve certain risks and uncertainties that could cause actual results to differ materially from those contained in the forward-looking statements. Potential risks and uncertainties include, among others, such factors as market and economic conditions, governmental regulations, competitive conditions, interest rates and fluctuation in currency exchange rates. Although BKW believes that its expectations reflected in any such forward-looking statement are based upon reasonable assumptions, it can give no assurance that those expectations will be achieved. BKW undertakes no obligation to update any forward-looking statements, whether as a result of new information, future events or otherwise.