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Energy & Renewables

Maximising funding, tax relief and profitability as you deliver low‑carbon projects

The UK energy and renewables sector is growing fast, with ambitions of up to 70GW of solar by 2035 and around 400,000 additional clean energy jobs by 2030. With opportunity comes complexity: grid connection delays and queue reform, planning and regulation, rising costs, intricate tax incentives, and accessing the right funding. We help energy and renewables businesses unlock every pound of available support while building sustainable, profitable operations.

Whether you’re investing in your own installation or working in the supply chain, we help you access funding, control costs and optimise tax so projects stack up and cash flow is protected.

We work with wind, solar, new technologies, energy generation and storage, site developers and supply chain providers.

Whether your projects sit within solar, hydro, wind, battery or the wider nuclear supply chain, we support set up and funding, financial reporting, tax reliefs and valuations.

We’ve secured successful R&D tax relief claims, ensured tax deductions on project sales, and delivered significant tax savings across wind, hydro and battery projects - turning complex rules into clear financial outcomes.

How do we help?

Raising Finance

We act as lead adviser on finance raising for both large and small projects. It can be daunting, so we build investor-ready business plans and lender-ready forecasts that reflect your personal objectives as well as project milestones - giving potential funders what they need to assess the opportunity.

Keeping you efficient and effective

Let us remove the admin burden: preparing and filing accounts, VAT (MTD compliant) returns and Tax Returns, and helping you remunerate yourself tax efficiently. Whatever your business size, you benefit from processes that keep your energy and renewables operations efficient and effective.

Saving you money

From wind and hydro to anaerobic digestion, we maximise tax reliefs, advise on investment, prepare business plans to help finance projects and test viability, and help improve profitability - from feedstock and inputs through to delivery and offtake.

Valuations

We perform early and later stage project and company valuations for investment and exit, plus valuations for tax purposes (e.g., EMI option schemes), giving you credible numbers for negotiations and compliance.

Call NOW to speak to one of our Accountants

Call: 0808 144 5575

Memberships

We are active members of Scottish Renewables and BECBC, staying close to developments as the clean‑energy and technology sectors evolve.

Being part of these networks helps us keep up with what’s happening across the renewables sector, from policy changes to new projects. It means we can stay informed, connected, and ready to support organisations working towards a low‑carbon future.

Our areas of expertise

Tax Reliefs & Capital Allowances

Turn investment into cash savings. We identify and prepare HMRC R&D claims for genuine innovation, maximise capital allowances/AIA on solar, wind and storage assets, and get VAT and Corporation Tax right as you scale. With clean evidence trails and compliant processes, you reduce tax, improve cash flow and accelerate payback on projects - without tying up your finance team.

Funding & Corporate Finance

Growth needs capital and a credible plan. We build lender-ready forecasts, assess valuation, and advise on the right blend of debt, asset finance or equity. We also map routes to grants and support transaction readiness for investment or exit. Clear numbers and realistic sensitivities help you secure funding, keep stakeholders confident and move from term sheet to completion.

Accounts, VAT & Cash Flow

Robust numbers drive better decisions. We deliver timely management accounts, rolling cash flow forecasts, and practical controls that reflect milestone payments, grid timelines and supplier lead times. We handle VAT on installations and exports, maintain compliance with Making Tax Digital, and simplify year end. The result: reliable reporting, fewer surprises and the insight to price, plan and invest with confidence.

Payroll & People Costs

Recruitment and retention are critical, and costs must stay controlled. We run payroll, optimise National Insurance and pensions, and set up clear processes for overtime, allowances and site working. With straightforward reporting and help desk support, you keep pay accurate, on time and compliant, freeing your team to focus on delivery rather than admin.

Restructuring & Insolvency (Early Support)

If pressures build, early action creates options. We review cash, contracts and cost base, negotiate with lenders and HMRC, and model recovery plans. Where needed, we implement formal solutions and manage communications with stakeholders. The aim is simple: stabilise the business, protect value and jobs, and give you a clear path forward, whether that’s turnaround, sale or an orderly wind down.

Financial Planning

When the business grows - or you plan an exit - you need your personal finances aligned. We structure tax efficient drawings, pensions and protection, manage the proceeds of a sale, and plan for future income needs. With joined up business and personal advice, you keep more of what you earn, reduce risk and make confident decisions about timing, reinvestment and life after exit.

Ready to unlock your energy business’s full financial potential?

The UK transition is a major opportunity—but only if finances are set up right. From maximising tax reliefs and securing funding to managing cash flow and planning for rapid growth, we specialise in the practical challenges owner managed energy and renewables businesses face.

Get in touch

What our clients say

Mark and his team have been instrumental to Katrick from day one, acting as our accountants while supporting us with business planning and financial modelling that enabled our fundraising efforts. As a founder, having a finance team that truly understands the realities of building an early-stage renewables company has been invaluable.

Karthikeyan, Founder/CTO, Katrick Technologies Ltd. 

Mark and Armstrong Watson have been a great support over the years providing invaluable advice on various assignments and projects making a real difference in terms of managing risk and our tax obligations.

Mark Wilson, CEO, Intelligent Land Investments Group plc

At Greenbackers Investment Capital, we operate exclusively within the renewable energy sector, supporting businesses at every stage of their growth journey. Our community ranges from early-stage startups and scale-ups raising several hundred thousand pounds from friends, family and angel investors—often under SEIS and EIS schemes—to more established companies seeking £20 million or more from venture capital and institutional investors.

Across this broad spectrum, one requirement is constant: access to agile, commercially astute advisers who understand both the technical and financial complexities of growth. Mark and his team consistently deliver exactly what these ambitious businesses need.

Their responsiveness, depth of expertise and practical understanding of funding structures provide real confidence to founders and investors alike. In addition, the strength of Armstrong Watson’s wider international network brings further strategic value, particularly for companies with global ambitions.

The support Mark and his colleagues provide plays an important role in underpinning the prospects of these businesses becoming the renewable energy success stories of tomorrow.

I would have no hesitation in recommending Mark McRae and Armstrong Watson to any growth-focused business seeking high-quality, forward-thinking advisory support.

Andrew Smith, Managing Partner, Greenbackers Investment Capital

We reached out to Armstrong Watson to do a first-year audit following a large investment in our business. They got to work straight away and quickly made themselves indispensable to the business. The audit team have been excellent to work with and highly responsive to the needs of a fast-growing business in an emerging market. We see Armstrong Watson as key partners on the growth journey of our business.

Tom, Aegis Energy

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