Extremely nimble practice. Deep knowledge of the energy sector.
Legal 500 2026, Energy client testimonial
Renewable energy is driving a global shift toward cleaner, more resilient power systems, supported by rapid advances in green technology. As nations and businesses accelerate their transition to net‑zero, innovations in solar, wind, hydro, storage and intelligent energy management are reshaping how the world generates, consumes and optimises power. Falling technology costs and rising environmental expectations continue to fuel investment and adoption across every sector.
This evolving landscape brings technical complexity and strategic opportunity. Organisations must navigate shifting regulatory frameworks, secure sustainable financing and integrate new technologies into existing infrastructures, all while responding to policy changes, market pressures and community priorities. Green technologies—from advanced battery systems to smart grids, electric mobility and AI‑driven energy optimisation—are becoming central to building efficient, future‑ready energy systems.
In a market defined by rapid innovation and long‑term ambition, adaptability, insight and forward‑looking planning are essential. Whether deploying new renewable assets, upgrading legacy systems or exploring transformative solutions such as green hydrogen, carbon‑capture integration or grid‑scale storage, businesses and investors across the green‑energy value chain are shaping a cleaner, more sustainable global future.
Extremely nimble practice. Deep knowledge of the energy sector.
Legal 500 2026, Energy client testimonial
In recognition of its ever-growing importance to developed and emerging economies, this sector continues to be an area in which Keystone invests and expands its expertise. Our renewable and green energy specialists can advise on all aspects of projects, including drafting and negotiation contracts, tendering and procurement, joint ventures, construction, finance, and planning issues.
Our Renewables & Green Technology team has experience in all the main areas for renewables including solar, waste to energy, offshore and onshore wind, hydro-electric, geothermal, hydrogen, tidal, and many other renewable sectors. They advise companies of all sizes, from startups to multinationals.
Each lawyer in our team has specialist experience in this industry, having advised renewable and green technology businesses for years, or having worked in-house. Many of them are recognised for their expertise in leading legal directory The Legal 500.
Our team advises on the full lifecycle of construction and operational projects across the renewables sector, drafting and negotiating EPC, supply, installation and commissioning contracts for solar, wind, and anaerobic digestion schemes. We support clients on major infrastructure projects, procurement strategy, performance issues, and insurance matters.
Experience
Drafted supply, installation and commissioning contracts for anaerobic digestion plants for an Austrian engineer – bespoke contracts, IChemE Red Book and MF/1 procured across England and Scotland (140kwp-2.4mwp schemes with Downing funding considerations) including specialist plant and civil engineering.
Drafted EPC contracts for commercial solar schemes including the largest rooftop solar PV installation in Europe in 2014 (6.1 MW with an array the size of 11 football pitches) at Marks & Spencer’s distribution hub at Castle Donnington, Leicestershire. Advising further on the rights disposal to Amber Infrastructure.
Various piling and O&M contracts relating to wind farms (ICE/ICC-based).
Advised Bathurst Estate, Cirencester, on various renewable energy installations to help smooth out the estates energy costs.
Independent power plant project, Saudi Arabia – turnkey construction of a 4,000 MW combined-cycle power station. Advising the EPC contractor on ongoing contentious and non-contentious issues arising under the EPC contract, including reviewing and negotiating procurement contracts for design services and equipment. Also advising on insurance claims issues and dispute resolution issues, and participating in settlement negotiations with various entities. [Project value $2400m.]
Our lawyers advise renewable and green technology clients on a broad range of corporate and commercial matters, including EPC contracts, joint ventures, major supply agreements, and cross‑border project arrangements. Their work spans solar, wind, hydro, biomass, and energy‑from‑waste projects, supporting developers and contractors through complex transactional and project‑delivery requirements.
Experience
Acted for Anaeco, an Australian energy-from-waste company on UK matters.
Advised the Grupotec group (Spain), including its newly established United Kingdom subsidiary, in relation to a series of small (approximately 5 MW) solar PV projects in the United Kingdom being developed by Lightsource for which Grupotec was the contractor, including advice in relation to the EPC contract, the direct agreements, and the related parent company guarantees required by Macquarie (which was both lender and an equity investor).
Teesside Biomass Power Plant, UK – negotiated an EPC Contract for a 299 MW biomass-fuelled power plant to be constructed at Teesport, UK. Negotiated joint venture and consortium agreements for the contractor. Negotiated major equipment supply contracts. [Project value $900m, supply contract values $400m.]
Acted for Ecotricity Group on the procurement of a number of projects and related contract advice relating to MF/1, JCT and bespoke appointments with engineers based in Italy, Germany and the Czech Republic.
Drafted supply, installation and commissioning contracts for anaerobic digestion plants for an Austrian engineer – bespoke contracts, IChemE Red Book and MF/1 procured across England and Scotland (140kwp-24mwp schemes with Downing funding considerations) including specialist plant and civil engineering.
Our Renewables & Green Technology lawyers advise investors, developers, and funds on complex mergers, acquisitions, and financings across the renewables and green technology sector. Their work spans solar, wind, energy‑from‑waste and large‑scale infrastructure projects, including due diligence and strategic transactions for UK and international clients.
Experience
Advised the selling shareholders (corporates) on the AIM IPO of Eqtec PLC (bioscience energy/gasification technology).
Advised a UK renewables company, Solarplicity on its acquisition of a UK solar farm.
Advised Eucom Real Estate and Investment S.A. on the acquisition from Enron of two wind farms in Crete (Greece) and financing of the same.
Acted for management on £80 million secondary buyout of Discovery Group.
Acting on the IPO of Wogen Resources Ltd to the AIM.
Acted for a major developer on a number of solar and wind acquisition projects in the UK (portfolio value in excess of £500 million), to include preparing and negotiating all EPC, supply contracts and subcontracts with the relevant provider.
Advised a start-up infrastructure trading platform on due diligence and transactional matters for the financing of energy-from-waste facilities in Northamptonshire and Nottinghamshire.
Acted for funds managed/advised by Triple Point Investment Management LLP in relation to investments in solar, hydro and other renewable energy projects, including transaction structuring, reviewing the commercial agreements and preparing and finalising the investment documents.
Advised a renewables company on its acquisition of a UK solar farm.
Acted for funds managed/advised by Octopus Investments Limited in making over 100 VCT/EIS investments in solar and anaerobic digestion companies, including transaction structuring advice and completion of the investment process.
Advised an international investor and operator on its due diligence in relation to its proposed acquisition of an equity stake in, and the proposed project financing of, six solar farm projects in the UK, including advising on the EPC and O&M contracts.
Advised a start-up infrastructure trading platform on due diligence and transactional matters for the financing of energy-from-waste facilities in Northamptonshire and Nottinghamshire.
Our dispute resolution specialists handle commercial, shareholder and investment‑related disputes across the renewables sector, including matters arising from EPC performance issues and complex corporate transactions. They act in TCC proceedings and advise on alternative dispute resolution mechanisms, representing clients in high‑value solar and nuclear‑related claims involving performance guarantees, contractual disputes and international counterparties.
Experience
Acted for British Nuclear Fuels in long-running litigation with international customers concerning the reprocessing of spent nuclear fuel.
Advised investors in a solar farm project on disputes with counterparties.
Acted for a major solar park EPC contractor in the UK in relation to a claim for performance guarantees by the client (level of damages £15 million).
Our experienced lawyers advise on complex financing structures across the renewables and green technology sector, supporting investors, funds, and developers on project financing, security arrangements and high‑value fundraisings. We guide clients through due diligence, commercial agreements, and investment documentation for solar, hydro, wind, and energy‑from‑waste projects in the UK and internationally.
Experience
Acted for Clipper Windpower (an AIM Company), a US wind turbine manufacturer and operator, in various corporate and commercial matters, including significant fund raisings ($200 m +).
Advised a start-up infrastructure trading platform on due diligence and transactional matters for the financing of energy-from-waste facilities in Northamptonshire and Nottinghamshire.
Acted for Clipper Windpower (an AIM Company), a US wind turbine manufacturer and operator, in various corporate and commercial matters, including significant fund raisings ($200 m +).
Acted for funds managed/advised by Triple Point Investment Management LLP in relation to investments in solar, hydro and other renewable energy projects, including transaction structuring, reviewing the commercial agreements and preparing and finalising the investment documents.
Advised Credit Suisse AG (New York branch) in relation to the United Kingdom aspects of its fully secured US$50 million financing of the acquisition by a Canadian developer of three solar PV projects in Canada.
Our Renewables & Green Technology team provides expert support in drafting and negotiating long‑term biomass supply agreements and advising on complex contractual issues arising from multi‑utility connection works for universities, solar sites, and statutory undertakers, including successfully bringing adjudications for major UK energy and infrastructure operators.
Experience
Drafted and negotiated long-term biomass supply agreements for a German power generation company.
Advised US-based Infracapital on various contractual issues based on its multi-utility connection works for universities for gas connections with statutory undertakers such as British Gas in the UK.
Advised UK Power Solutions (Infracapital) on various contractual issues (including successfully bringing adjudications) based on its multi-utility connection works for universities, solar sites and contracts with statutory undertakers such as British Gas.
Our lawyers advise landowners, developers and investors on complex property and planning matters across the renewables and green technology sector. Their experience includes challenging planning proposals, advising on compensation and compulsory acquisition issues, supporting solar‑related transactions, and acting on planning aspects of wind, solar, and anaerobic digestion projects.
Experience
Acting for a landowner who successfully challenged a planning proposal for development of an anaerobic digestion plant in the Green Belt.
Advised a key landowner on compensation issues who faced compulsory acquisition for the Hinckley Point C nuclear project.
Advised Bird & Bird LLP on planning when they have been acting for clients on deals acquiring various solar projects in the UK.
Advised Greener Wind Energy Limited on a High Court challenge.
Handled housing and wind farm agreements for Cornwall Council and for Wiltshire District Council (on secondment).
Our specialist team advises on tendering and procurement strategies for renewable and green technology energy projects, including IChemE, MF/1 and JCT‑based procurements. Their experience spans anaerobic digestion, biogas, and wider power‑plant developments, supporting clients through pre‑bid stages, contract negotiation and complex multi‑jurisdictional engineering appointments.
Experience
Advised on the proposed UK roll-out of grass-fed-only AD farms for energy company Ecotricity Group (procurement via IChemE red book).
Acted for bio-gas generator on the procurement of a number of projects and related contract advice relating to MF/1, JCT and bespoke appointments with engineers based in Italy, Germany and the Czech Republic.
Advised Biogest AG on the procurement and installation of anaerobic digesters on a number of farms and estates within the UK.