BW ESS announces commercial operations of Hams Hall Battery Energy Storage system. · Hams Hall enters commercial operations, bringing 350 MW / 1,243 MWh of battery storage capacity online in the West Midlands, backed by a 10-year floor agreement with EDF · The project becomes Europe's largest operational BESS by storage capacity (MWh) · Further expansion to follow: Phase 2 will increase total capacity to 400 MW / 1,424 MWh, enough to support around 1.3 million homes for up to 3.5 hours London, 2 November 2026 - Global energy storage owner-operator BW ESS has announced the start of commercial operations for the first phase of its Hams Hall battery energy storage system (BESS) in the West Midlands The milestone, achieved last week, brings 350 MW / 1,243 MWh of storage capacity into commercial operation; the largest BESS by storage capacity (MWh) in Europe and a significant step forward in the delivery of infrastructure supporting the UK's transition to a cleaner, more resilient energy system. Located adjacent to National Grid's Hams Hall substation, the project will help balance variable electricity demand and intermittent renewable generation, supporting greater integration of renewable energy while strengthening grid resilience and energy security. The project reached commercial operation just 20 days after energisation. From commissioning and testing to operational readiness, BW ESS worked closely with partners including Sungrow, Energy-IO, National Grid and NESO. Achieving this milestone safely and efficiently reflects the engineering expertise, rigorous preparation and close coordination behind Hams Hall, as well as the technical capability and commitment of everyone involved. Hams Hall's capacity will increase to 400 MW / 1,424 MWh following completion of its second phase. At full capacity, the project will be capable of supporting the electricity needs of around 1.3 million homes for up to 3.5 hours, which is approximately equivalent to the number of households across Greater Manchester. "The start of commercial operations at Hams Hall is a landmark moment for BW ESS and a significant addition to Europe's energy infrastructure," said Erik Strømsø, CEO and Co-Founder of BW ESS. "The project was built and commissioned on budget and ahead of schedule, which is a remarkable achievement for a system of this scale and complexity and a testament to the dedication and expertise of our team, and the commitment and collaboration of our partners." Long-term revenues for the project are underpinned by a 10-year floor and optimisation agreement with EDF and financing was recently secured from lenders OCBC, Rabobank and Societe Generale. Hams Hall forms part of BW ESS' 2.6 GWh Ardenham portfolio, co-owned with leading energy and decarbonisation investor AIP Management. Its entry into commercial operations expands BW ESS' operating presence in the UK, alongside the 331 MWh Bramley BESS in Hampshire. The company also has 857 MWh under construction at Berkswell and a broader UK development pipeline spanning multiple gigawatt hours. ABOUT BW ESS BW ESS is a global energy storage owner-operator, moving with speed to develop, deliver and operate market-leading projects. The business is active in the UK, Australia, Italy, Germany, Spain, Sweden and France. It has more than 1.8GWh of operating Battery Energy Storage Systems (BESS), with ~10GWh under / pre-construction and a development pipeline of several gigawatts. Part of BW Group, BW ESS builds on decades of global infrastructure experience, takes a long-term view of projects and partnerships, and focuses on unlocking value throughout the energy storage asset lifecycle. MEDIA CONTACT AT BW ESS Tamarindo Communications E-mail: [email protected]

BW ESS buys 800 MWh French battery portfolio from Recurrent. Estimated reading time: 6 minutes · Last updated: 31 October 2026 BW ESS has bought two standalone battery storage projects in France from Recurrent Energy, the Canadian Solar subsidiary, giving it 200 MW of power and 800 MWh of storage capacity. The deal was announced on 29 October 2026 and makes France the seventh country where BW ESS operates. Neither site is built yet. Recurrent will keep running development until the projects reach ready-to-build status, and then BW ESS takes over construction and operations. The BW ESS France portfolio splits evenly between Baixas in Pyrénées-Orientales and Coquainvilliers in Calvados, at 100 MW and 400 MWh each. No price was disclosed. Neither company has given a date for construction to start or for the batteries to begin operating. Key takeaways. * The deal: BW ESS has acquired two French battery projects from Recurrent Energy, a Canadian Solar subsidiary, totalling 200 MW and 800 MWh, in a transaction announced on 29 October 2026. * The sites: Baixas in Pyrénées-Orientales and Coquainvilliers in Calvados, Normandy, are each planned at 100 MW and 400 MWh, which gives four hours of discharge at full power. * Who does what: Recurrent Energy keeps responsibility for development until ready-to-build status, after which BW ESS handles construction, commissioning and long-term operation. * BW ESS footprint: France becomes BW ESS's seventh market, joining a portfolio of more than 540 MWh in operation and roughly 12 GWh under construction or in pre-construction. * What is missing: BW ESS has disclosed neither the acquisition price nor a timeline for building or commissioning Baixas and Coquainvilliers. Table of contents. Two four-hour batteries at opposite ends of France. The first project, Baixas, sits in the Pyrénées-Orientales department in the south of the country. The second, Coquainvilliers, lies in the Calvados department in Normandy. Each is planned with 100 MW of power and 400 MWh of energy capacity. That ratio sets how long each battery can run. Divide a battery's energy capacity by its power rating and you get the hours it can discharge at full output. Here both sites come to four hours. Combined, the pair would deliver 200 MW for that span. Both will be standalone systems. A standalone battery has no direct link to a particular wind or solar plant. It charges from and feeds into the grid rather than storing the output of one generator. Recurrent Energy says each site holds an advanced connection position on the transmission network. The company also says it picked locations where it expects grid constraints to be limited. Why Recurrent Energy stays on until ready-to-build. The sale changes who owns the projects before it changes who works on them. Recurrent Energy will finish the outstanding development procedures and bring both assets to ready-to-build status. That is the stage at which a project has cleared the steps needed before construction can begin. Until now Recurrent has handled the groundwork. It secured the land, pushed the grid connection process forward, managed permits and kept up relations with local authorities and nearby communities. That work continues even though the projects have a new owner. Once the sites are ready to build, BW ESS takes charge of construction, commissioning and operation, and it plans to keep the facilities for the long term. Dylan Marx, CEO of Recurrent Energy, presented the sale as part of a strategy of developing BESS projects while staying involved in the phases before commercial operation. In practice, Recurrent gives up ownership of two French projects but keeps the technical and development role. France becomes BW ESS's seventh market. Before this deal, BW ESS was active in the United Kingdom, Australia, Italy, Germany, Spain and Sweden. France now joins that list as its seventh country. In its announcement, BW ESS put its existing portfolio at more than 540 MWh of batteries in operation. It also listed roughly 12 GWh either under construction or in pre-construction. The French pair adds 800 MWh of planned capacity, which is larger than the company's current operating fleet. None of it is installed yet. Erik Strømsø, CEO and co-founder of BW ESS, described the purchase as an initial 200 MW and 800 MWh platform in France that the company intends to build on. He did not say how much more capacity BW ESS is targeting in the country, or where. For now the expansion is a stated intention. What exists so far is two sites still working through development. What the batteries would do for France's grid. Grid batteries exist to bridge the gap between when power is produced and when it is used. They charge when electricity is plentiful and discharge when demand climbs or generation conditions change. They can also respond quickly to disturbances. Frequency stability means keeping the grid's alternating current close to its standard rate. Batteries can inject or absorb power rapidly to help hold it there, which makes them suited to fast-response services. BW ESS and Recurrent Energy say Baixas and Coquainvilliers are meant to meet flexibility needs in the French system and help integrate more renewable generation. That case depends on the sites being built. The financial value is undisclosed and there is no construction or operating timeline. The remaining development steps still have to be completed before any work starts on the ground. What could speed or slow the French projects. The case for. * Both sites already hold advanced connection positions on the transmission network, which Recurrent Energy says removes a common source of delay. * Recurrent Energy says it chose locations where it expects grid constraints to be limited. * Recurrent keeps the development work it has handled so far, including land, permits and local relations, so the team does not change before ready-to-build. The case against. * The remaining development procedures must still be completed before construction can start. * BW ESS has published no construction or commercial operation timeline. * The acquisition price is undisclosed, so the deal's economics cannot be assessed. What to be careful about. * Development risk: Baixas and Coquainvilliers cannot be built until Recurrent Energy completes the outstanding procedures, and no completion date has been given. * Timing risk: with no construction or operating schedule announced, the 800 MWh may take an unknown period to reach the grid. * Disclosure gap: the undisclosed price leaves outsiders unable to judge what BW ESS paid for its French entry. The bottom line. The deal gives BW ESS a foothold in France while leaving the remaining development work with the company that started it. Recurrent Energy carries the projects to ready-to-build, and BW ESS then builds and keeps them. That split explains why the transaction says more about intent than about capacity. Today the 800 MWh exists as two grid connection positions, secured land and permit work in Pyrénées-Orientales and Calvados. Whether it becomes operating storage depends on Recurrent finishing the outstanding procedures and on BW ESS setting a build schedule, and neither has a date. Strømsø's aim to grow from this platform will be judged by how fast these two sites move and by what BW ESS adds next in France. What to watch. * Watch for Recurrent Energy to announce that Baixas and Coquainvilliers have reached ready-to-build status; no date has been set. * Watch for BW ESS to publish a construction and commercial operation timeline for the two French sites; none has been announced. * Watch for further French acquisitions by BW ESS following Erik Strømsø's stated plan to expand from this initial platform; no target or date has been given. Frequently asked questions. How much did BW ESS pay for the Recurrent Energy projects in France? BW ESS has not disclosed the financial value of the deal. The seller, Recurrent Energy, is a subsidiary of Canadian Solar, and the transaction covers two projects totalling 200 MW and 800 MWh. Will the Baixas and Coquainvilliers batteries be linked to a solar or wind farm? No. Both are planned as standalone battery energy storage systems, meaning neither connects directly to a specific renewable plant. Each instead holds its own advanced connection position on France's transmission network. Which countries does BW ESS operate in? BW ESS lists the United Kingdom, Australia, Italy, Germany, Spain and Sweden, with France added as its seventh market after the 29 October 2026 deal. Across those markets it reports more than 540 MWh in operation and roughly 12 GWh under construction or in pre-construction.

Recurrent Energy completes sale of two 100 MW / 400 MWh BESS projects in France to BW ESS. Oct 29, 2026, 07:00 ET The 200 MW / 800 MWh portfolio was sold to BW ESS, demonstrating Recurrent Energy's ability to develop and monetize high-quality battery energy storage projects. KITCHENER, ON, Oct. 29, 2026 /PRNewswire/ - Recurrent Energy, a subsidiary of Canadian Solar Inc. ("Canadian Solar") (NASDAQ: CSIQ) and a leading global developer, owner, and operator of solar and energy storage assets, today announced the sale of two standalone BESS projects in France to BW ESS, a global energy storage owner-operator. The portfolio comprises two projects: Baixas, located in the Pyrénées-Orientales department, with a capacity of 100 MW / 400 MWh, and Coquainvilliers, located in Calvados, with a capacity of 100 MW / 400 MWh. Both projects benefit from advanced transmission-level grid connection positions and have been developed around strong grid fundamentals, including very limited expected network constraints. Together, they will provide 200 MW / 800 MWh of flexible capacity to the French electricity system. Recurrent Energy originated and developed both projects, including securing the land, advancing grid connection, and managing permitting and local stakeholder engagement. BW ESS will acquire the projects, marking the first transaction between the two companies and BW ESS' entry into the French energy market. Recurrent Energy will continue to lead the projects through the remaining development phase, drawing on its local market knowledge, technical capabilities, and experience in delivering renewable energy and storage projects. Once the remaining development milestones have been achieved, BW ESS will lead the delivery of the assets through construction and into commercial operation. BW ESS intends to own and operate the assets over the long term. Erik Strømsø, CEO and Co-Founder of BW ESS, commented: "We are excited to work with Recurrent Energy through the next phase and to apply BW ESS' long-term owner-operator expertise as we bring these assets into construction and operation. Entering France is a significant milestone for BW ESS and a natural next step in the expansion of our global energy storage platform. These acquisitions give us an immediate 200 MW / 800 MWh platform in the country and provide a strong foundation for building a sizeable French portfolio. France has a strong nuclear base, but it also has a growing need for flexibility as weather-sensitive demand and an evolving generation mix create more variable system conditions. Batteries can complement France's nuclear backbone by adding the rapid-response flexibility needed to balance the system, absorb surplus power, and make low-carbon generation available when it is most valuable." Dylan Marx, CEO of Recurrent Energy, said: "This transaction with BW ESS showcases our ability to create value through the delivery of high-quality BESS projects, while remaining closely involved in their development through to commercial operation. It is a strong testament to the BESS platform we have built in France and our ability to continue scaling it. Once operational, the projects will provide flexible storage capacity to support grid stability, balance supply and demand, and facilitate the further integration of renewable energy into the French electricity system." ABOUT BW ESS BW ESS is a global energy storage owner-operator, moving with speed to develop, deliver and operate market-leading projects. The business is active in the UK, Australia, Italy, Germany, Spain, Sweden and France. It has more than 540MWh of operating Battery Energy Storage Systems (BESS), with ~12GWh under / pre-construction and a development pipeline of several gigawatts. Part of BW Group, BW ESS builds on decades of global infrastructure experience, takes a long-term view of projects and partnerships, and focuses on unlocking value throughout the energy storage asset lifecycle. About Recurrent Energy Recurrent Energy, a subsidiary of Canadian Solar Inc., is one of the world's largest and most geographically diversified utility-scale solar and energy storage project development, ownership, and operations platforms. With an industry-leading team of in-house energy experts, Recurrent Energy serves as Canadian Solar's global development and power services business. Additional details are available at www.recurrentenergy.com. About Canadian Solar Canadian Solar is one of the world's largest solar technology and renewable energy companies. Founded in 2001 and headquartered in Kitchener, Ontario, the Company is a leading manufacturer of solar photovoltaic modules; provider of solar energy and battery energy storage solutions; and developer, owner, and operator of utility-scale solar power and battery energy storage projects. Over the past 25 years, Canadian Solar has successfully delivered nearly 180 GW of premium-quality solar photovoltaic modules to customers across the world. Through its energy storage solutions business e-STORAGE, Canadian Solar has shipped over 23 GWh of battery energy storage solutions to global markets and had a contracted backlog of $3.5 billion as of June 30, 2026. Since entering the project development business in 2010, Canadian Solar has developed, built, and connected approximately 12.4 GWp of solar power projects and 6.4 GWh of battery energy storage projects globally. Its geographically diversified project development pipeline includes approximately 22 GWp of solar and 84 GWh of battery energy storage capacity in various stages of development. Canadian Solar is one of the most bankable companies in the solar and renewable energy industry, having been publicly listed on the NASDAQ since 2006. For additional information about the Company, follow Canadian Solar on LinkedIn or visit www.canadiansolar.com. Safe Harbor/Forward-Looking Statements Certain statements in this press release, including those regarding the Company's expected future shipment volumes, revenues, gross margins, and project sales are forward-looking statements that involve a number of risks and uncertainties that could cause actual results to differ materially. These statements are made under the "Safe Harbor" provisions of the U.S. Private Securities Litigation Reform Act of 1995. In some cases, you can identify forward-looking statements by such terms as "may", "will", "expect", "anticipate", "future", "ongoing", "continue", "intend", "plan", "potential", "prospect", "guidance", "believe", "estimate", "is/are likely to" or similar expressions, the negative of these terms, or other comparable terminology. These forward-looking statements include, among other things, our expectations regarding global electricity demand and the adoption of solar and battery energy storage technologies; our growth strategies, future business performance, and financial condition; our transition to a long-term owner and operator of clean energy assets and expansion of project pipelines; our ability to monetize project portfolios, manage supply chain fluctuations, and respond to economic factors such as inflation and interest rates; our outlook on government incentives, trade measures, regulatory developments, and geopolitical risks; our expectations for project timelines, costs, and returns; competitive dynamics in solar and storage markets; our ability to execute supply chain, manufacturing, and operational initiatives; access to capital, debt obligations, and covenant compliance; relationships with key suppliers and customers; technological advancement and product quality; and risks related to intellectual property, litigation, and compliance with environmental and sustainability regulations. Other risks were described in the Company's filings with the Securities and Exchange Commission, including its annual report on Form 20-F filed on April 10, 2026. Although the Company believes that the expectations reflected in the forward-looking statements are reasonable, it cannot guarantee future results, level of activity, performance, or achievements. Investors should not place undue reliance on these forward-looking statements. All information provided in this press release is as of today's date, unless otherwise stated, and Canadian Solar undertakes no duty to update such information, except as required under applicable law. Canadian Solar Inc. Investor Relations Contact Wina Huang Investor Relations Canadian Solar Inc. [email protected] SOURCE Canadian Solar Inc.