commercialsolarfinance.co.uk
Compare lease, asset finance and cash routes alongside PPA on the commercial solar finance hub.
UK solar Power Purchase Agreements are offered by specialist rooftop funds, energy-supplier corporate-PPA desks, utility-scale developers and infrastructure funds — each suited to a different system size and structure. This is an independent map of the market and how to choose the right provider for your site. We are a provider-neutral matching layer, not a provider.
In the UK, corporate solar PPAs are offered by utility-scale developers and independent power producers (such as Lightsource bp, Ørsted, RWE and Statkraft), by energy-supplier corporate-PPA desks (EDF, Engie, Centrica Business Solutions, SmartestEnergy), and by specialist rooftop funds (Atrato, Foresight, NextEnergy) for smaller on-site deals. Typical terms run 10–25 years at a fixed or RPI-linked p/kWh tariff, usually requiring an investment-grade or guaranteed off-taker.
The named companies below are examples of who is active in the UK market for each provider type — they are market reference, not endorsements, partners or clients, and no ratings are implied.
| Provider type | Typical deal size | Structure | Term | Examples active in the UK |
|---|---|---|---|---|
| Specialist commercial rooftop solar funds Fund and own the PV system on your own roof or land and sell you the kilowatt-hours. The most common route for sub-5 MWp commercial off-takers and the typical match for a single-site on-site PPA. |
100 kWp – 5 MWp | On-site / behind-the-meter PPA | 15–25 years | Atrato Onsite Energy, Foresight Group, Bluefield, NextEnergy Capital, Aura Power |
| Utility & energy-supplier corporate-PPA desks Supply or 'sleeve' renewable power to your meters via a licensed supplier, balancing and shaping the generation. The usual route for tenants without roof rights and multi-site portfolios. |
1 MWp – utility scale | Sleeved / utility-route PPA | 10–15 years | Statkraft, Centrica Business Solutions, EDF, Engie, SmartestEnergy, Axpo |
| Independent power producers & developers (utility-scale) Build and operate utility-scale solar farms and contract the output directly to a single large off-taker. The route behind most headline corporate PPAs and the typical match for a virtual/synthetic PPA. |
5 MWp – 100 MWp+ | Corporate PPA (physical or virtual) | 10–20 years | Lightsource bp, Ørsted, RWE, Anesco, British Solar Renewables, Voltalia, Enviromena |
| Infrastructure-fund-backed SPVs Pools of institutional capital that fund solar through special-purpose vehicles. Strong for long-tenor, aggregated multi-site programmes where covenant strength matters. |
500 kWp – 20 MWp | On-site or aggregated multi-site PPA | 20–25 years | Greencoat Capital, Octopus Energy Generation, Gresham House, Downing |
| Broker / advisory & matching layer Independent advisers who explain the mechanics, set realistic tariff expectations and introduce off-takers to vetted providers — paid a disclosed referral fee on completion, with no provider commission bias. This is what SPPA is. |
Any (introducer) | Provider-neutral introduction | n/a | Solar Power Purchase Agreements (this site) and other independent advisers |
Tariff, term and covenant requirements vary by site. We match your profile to the provider type — and the specific providers — most likely to be competitive for you.
Choosing a provider is really about matching four things — structure, size, covenant and track record. The five steps below are how we shortlist on every introduction.
We are an independent editorial advisory and introducer (operated by SEO Dons Ltd) — we are not a provider, supplier or installer. We map your site to the provider types above, shortlist 3–5 specific providers most likely to be competitive for your sector, size and postcode, and return an indicative tariff. We are paid a flat referral fee on a completed deal, disclosed in writing before any introduction; we take no provider commission, so the shortlist is matched to your site, not skewed toward whoever pays most.
Once you have two or three names on a shortlist, the decision gets easier if you score every bidder on the same axes rather than reacting to whoever presents most confidently. The scorecard below turns the qualities of a credible provider into a weighted checklist you can apply side by side. As an independent, provider-neutral service we don't sell or fund any of these deals, so the weightings are yours to set — they are illustrative starting points, not fixed rules. A manufacturer running a 24/7 load will weight O&M and availability more heavily than a warehouse on a nine-to-five shift.
| Criterion | What a strong answer looks like | Illustrative weight |
|---|---|---|
| Delivered track record at your scale | Named, operating UK sites of comparable size and sector — not just a pipeline or a parent-company logo wall | 20% |
| Funding strength & asset-owner covenant | A named fund or balance sheet standing behind the 15–25 year asset, evidenced now — not “funding to be confirmed after signing” | 20% |
| EPC / build quality | MCS-certified installation, in-house or long-standing EPC partners, and product warranties that outlast the contract term | 15% |
| O&M scale & SLA | Remote performance monitoring, defined fault response times and a written availability or performance guarantee | 15% |
| Contract flexibility | A published buy-out schedule, assignment on sale of the premises, and non-punitive early-exit terms | 15% |
| Callable references | Two or three customers at your scale you can actually phone — not a testimonial quote | 15% |
Score each shortlisted provider 1–5 against every criterion, multiply by the weight, and total the result. The exercise flushes out the provider that dazzles on headline tariff but scores 2/5 on funding and O&M — a poor bet on a contract that will outlast most senior management teams. Two covenants sit inside this table and they are easy to confuse: the provider's own funding covenant (can they finance and stand behind the asset for two decades) and your off-taker covenant, which is the credit strength that actually sets the tariff you are offered. We cover the latter in full on off-taker covenant, and how it feeds the rate on PPA pricing.
The right provider type depends far less on who markets hardest and far more on your site's size, load profile and covenant. The existing comparison above maps each provider category to its deal size; the matrix below runs the other way — start from your own profile and read across to the provider type and structure that usually fit. Treat it as a starting map, then pressure-test it against live tariffs before committing.
| Your site profile | Best-fit provider type | Typical structure | What to watch |
|---|---|---|---|
| Single rooftop under 500 kWp | Specialist rooftop solar funds | On-site, behind-the-meter PPA | Some funders set a minimum system size; smaller sites may need aggregating to clear their threshold |
| Multi-site estate (portfolio) | Rooftop funds that aggregate portfolios, or a developer offering a framework | Master PPA with per-site schedules | Cross-default clauses, and whether sites can be added or removed as your estate changes |
| 1 MWp+ single industrial site | IPPs, utilities or large rooftop funds | On-site PPA, sometimes with a private wire | DNO grid capacity and how well generation matches your half-hourly demand |
| Investment-grade / multi-site corporate | Utilities and large IPPs | Sleeved or virtual (corporate) PPA | This is credit-led and often off-site — expect treasury and legal sign-off before heads of terms |
Whichever profile you fit, the structure decides who owns the asset and who carries performance risk — the mechanics differ more than the marketing suggests, so it is worth reading PPA structures explained and, for larger organisations weighing an off-site route, corporate vs utility PPA before you shortlist. Because we don't earn from steering you to one category, we start from your site rather than from a product we need to place.
Most poor PPAs are not obvious frauds — they are reasonable-looking contracts with one or two terms that quietly transfer risk onto you for 15 to 25 years. These are the warning signs that should slow a signature, drawn from what separates the credible providers from the rest:
None of this requires you to become a PPA expert overnight. As an independent service we shortlist providers that fit your site, apply the scorecard above, and flag any of these warning signs before they reach a contract. The quickest start is to tell us your site profile and requirements — request a PPA quote and we'll match you to providers worth your time.
| Off-taker | Sector | Structure | What's publicly reported |
|---|---|---|---|
| Amazon | Logistics / data centres | Corporate PPAs (multiple) | Repeatedly reported as the world's largest corporate buyer of renewable energy, with a portfolio of UK and European solar and wind PPAs. |
| Tesco | Retail / supermarkets | Corporate solar PPAs | Has publicly contracted large-scale UK solar generation via long-term corporate PPAs as part of its net-zero programme. |
| Sainsbury's | Retail / supermarkets | Corporate solar PPA | Publicly committed to sourcing renewable electricity through power purchase agreements with UK solar developers. |
| Marks & Spencer | Retail | Corporate renewable PPA | Part of M&S 'Plan A' net-zero commitments, sourcing renewable power via long-term agreements. |
| Nestlé UK | Food & drink manufacturing | Corporate solar/wind PPA | Publicly reported renewable PPAs covering UK manufacturing operations. |
| IKEA / Ingka | Retail | On-site + corporate PPA | Long-running renewable strategy combining on-site solar with off-site corporate PPAs across its UK estate. |
Publicly reported from each company's own sustainability disclosures — market reference only; we are not party to these deals.
UK solar PPAs are provided by four broad groups: specialist commercial-rooftop funds (Atrato, Foresight, Bluefield, NextEnergy) for on-site deals; energy-supplier corporate-PPA desks (Statkraft, Centrica, EDF, Engie) for sleeved and multi-site supply; utility-scale developers and IPPs (Lightsource bp, Ørsted, RWE, Anesco, Voltalia) for corporate and virtual PPAs; and infrastructure funds (Greencoat, Octopus Energy Generation, Gresham House). We are an independent matching layer that introduces you to the right one.
Match the provider type to your structure and size: a 250 kWp rooftop deal suits a specialist rooftop fund, a multi-site retail estate suits a supplier-sleeved PPA, and a 10 MWp+ requirement suits a utility-scale developer. The fastest route is our 60-second form — we map your site to vetted providers active in your sector and return an indicative tariff shortlist within one working day.
Licensed electricity suppliers (the sleeving route) are regulated by Ofgem. Solar funds and developers that own on-site assets are not energy suppliers, so the contract — not a regulator — protects you; that is why the off-taker's legal review and provider due diligence matter. We are an editorial advisory and introducer, not an FCA-authorised broker; we disclose our referral fee before any introduction.
Going direct means approaching one provider and taking their offer. A provider-neutral introducer compares several providers' tariffs and terms for your specific site, so you see the market rather than a single quote. We are paid a disclosed referral fee on a completed deal and take no provider commission, so the shortlist is not skewed.
Typical 2026 UK terms are a 10–25 year contract at 9–18 p/kWh year-1 for on-site deals (lower for large behind-the-meter, higher for sleeved), with a fixed or RPI/CPI-linked escalator, full provider-funded O&M, and three end-of-contract options (extend, buy at fair market value, or free removal). Larger and investment-grade off-takers achieve the lower tariffs.
Tell us your site and we return an indicative p/kWh tariff and a 3–5 provider shortlist within one working day. Provider-neutral. No commission.
Get an indicative PPA tariffCompare lease, asset finance and cash routes alongside PPA on the commercial solar finance hub.
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