Virtual (Synthetic) PPA Explained

A virtual PPA is not an electricity contract at all — it is a long-dated financial hedge that settles against a wholesale price, leaving your physical supply arrangements completely untouched.

What is a virtual PPA?

A virtual (synthetic) PPA is a financial contract-for-difference referencing a renewable generator's output at a fixed strike price — indicatively £55–£75/MWh for UK solar in 2026. No electrons change hands: you keep your existing supplier, and cash settles the gap between the strike and the wholesale spot price. It suits treasury-sophisticated corporates, not SMEs.

The single most important thing to understand about a virtual PPA — also called a synthetic PPA, financial PPA or VPPA — is that no electricity is ever delivered to you under it. You do not switch supplier. Your import meter, your half-hourly settlement, your network charges and your monthly energy bills carry on exactly as before. The VPPA sits entirely alongside that physical world as a separate, purely financial instrument.

What you actually sign is a long-dated contract-for-difference (CfD) referencing the metered output of a specific renewable generator — usually a utility-scale solar farm developed by an independent power producer of the kind described on our PPA providers page. You agree a fixed strike price — indicatively £55–£75/MWh for UK solar in 2026 — over a 10–15 year term. Corporate strikes are negotiated and unpublished; the nearest public reference is the government's own auction, where utility-scale solar cleared Contracts for Difference Allocation Round 7a at £65.23/MWh in 2024 money. The same result is £46.82/MWh in the scheme's 2012 prices, which is why older explainers quote a £45–£55 strike as if it were today's. Each settlement period, the generator's output is valued at the prevailing wholesale price and compared to your strike. The difference is settled in cash. That is the whole mechanism: a financial wrapper that converts a floating wholesale exposure into a fixed one, without anyone moving an electron on your behalf.

This is why the VPPA is the most abstract of the six structures in our PPA structures hub. A physical or on-site corporate PPA changes where your power comes from. A virtual PPA changes nothing about your power — it changes your financial position against the wholesale market, and it hands you renewable certificates to underpin a green claim.

How a virtual PPA works, step by step

Four things happen in a virtual PPA, and they happen in this order. Nothing in the sequence involves your building, your meter or your supplier — which is why buyers who arrive expecting a solar installation find the process unrecognisable.

1. Buyer and generator agree a strike price. A fixed price in £/MWh is set against a defined volume of one named renewable asset's output, for a fixed term. It is the only price in the contract, and it is a wholesale commodity price — not a delivered electricity rate.
2. The generator sells the physical power into the wholesale market. The solar or wind farm exports exactly as it otherwise would and is paid whatever the market pays it. Your name appears nowhere in that transaction and you never take title to a kilowatt-hour.
3. The difference between strike and market reference is settled in cash. Each settlement period the contracted volume is valued at the reference price the contract names. Above the strike, the generator pays you the difference; below it, you pay the generator. Nothing else changes hands.
4. Your existing supply contract is untouched. You keep your supplier, your MPAN, your network charges and your monthly bill. The virtual PPA is a separate financial position sitting alongside them, and it can be signed without a single conversation with your energy supplier.

Read as a whole, the sequence explains both the reach of the structure and its limits. Because nothing is delivered, one contract can cover consumption across any number of sites anywhere in the country. And because nothing is delivered, it cannot reduce a single line of your bill — it can only offset the wholesale element of it in cash.

Virtual PPA vs physical PPA: the difference in one table

Almost every question buyers ask about virtual PPAs is really this question. A physical PPA — whether the generation sits on your own roof or is sleeved to your meter from an off-site farm — sells you electricity. A virtual PPA sells you a price. Everything else follows from that one difference.

The last row is the one that decides most UK cases. A strike quoted in £/MWh and a delivered import rate quoted in p/kWh are not the same kind of number — the import rate also carries network charges, policy levies and supplier margin that no synthetic hedge touches — so the two cannot be set against each other unadjusted. If you control a suitable roof, a physical structure is a direct cash saving; a virtual PPA is a hedge, and the two are often run together rather than chosen between. The virtual versus on-site comparison works through when each earns its place.

Grid import benchmark: 21–25 p/kWh for Medium to Extra Large non-domestic consumers (all-band average 24.14 p/kWh). Source: DESNZ Quarterly Energy Prices, table 3.4.2 (including CCL, excluding VAT), Q1 2026, published 30 June 2026. Re-verified 10 September 2026. Term bands are SPPA's own indicative UK ranges drawn from the deals we see, not a published statistic — see PPA contract term.

How a UK virtual PPA is priced and what it settles against

Settlement is the heart of the structure, so it is worth walking through the cash flows precisely. In any given period the generator's actual metered production (in MWh) is multiplied by the difference between your fixed strike and a defined wholesale reference price — usually the day-ahead market index or the generator's achieved capture price.

Which index, though? That is the question a British buyer needs answered and the one the widely-read explainers skip, because they are written for American or European markets. There is no statutory reference index for a corporate virtual PPA in Great Britain — the confirmation names one, and the choice is a negotiation. GB day-ahead power is auctioned on two exchanges, the N2EX Day-Ahead Auction operated by Nord Pool and the EPEX SPOT GB day-ahead auction, and a confirmation normally references a published index from one of them. Solar deals are frequently referenced instead to the asset's achieved capture price: the volume-weighted price that specific farm actually earned in the periods it was generating, which for a midday-weighted solar profile normally sits below the flat baseload index. Baseload and capture are different numbers on the same day, so which one you sign changes the economics materially. Name it, and name what happens if it is discontinued or restated.

The £50/MWh strike and £90/£35 references above are illustrative round numbers, not a quoted deal — they exist only to show the direction of cash flow. Read the table in the round and the logic snaps into focus. When wholesale prices spike, you are paying more on your physical bill — but the VPPA pays you a matching credit, so your blended cost is stable. When wholesale prices collapse, your physical bill falls, but you top up the generator to its strike. The CfD is therefore a two-way swap: it removes the upside and the downside of wholesale volatility, fixing your effective renewable cost at roughly the strike. It is a hedge, not a discount. It is not designed to beat the market — it is designed to take a view off the table for 10–15 years. For the day-one tariff context the strike sits within, see the PPA pricing benchmarks; this page does not repeat those tables.

GB day-ahead auctions: Nord Pool N2EX Day-Ahead Auction and EPEX SPOT day-ahead trading. Reference-price selection in a corporate virtual PPA is a contractual matter, not a regulated one; confirm the index, its publisher and its fallback in your own confirmation.

Downsides and disadvantages of a virtual PPA

A virtual PPA has real disadvantages, and most of them are invisible on the day you sign because they only surface once prices move. The short list is below; the two that actually kill deals are set out in full underneath it.

• You can end up paying the generator. A contract-for-difference is two-way. If wholesale prices settle below your strike for a sustained period, the contract is a net cost every month until they recover.
• It changes nothing physical. No generation behind your meter means no resilience benefit, no effect on an EPC rating, and no reduction in network charges, policy levies or supplier margin.
• Basis risk cannot be removed, only modelled. The price the contract settles against is the generator's, not yours.
• It is a derivative on your balance sheet. Fair-valued at every reporting date, with the swings hitting profit and loss unless hedge accounting is designated and maintained.
• Credit support runs both ways. Either side can be out of the money, so expect parent guarantees, letters of credit or rating triggers to be asked of you, not only of the generator.
• The tenor outruns your visibility of load. Ten to fifteen years is long enough for site disposals, efficiency works and electrification to change how much electricity you buy — and a hedge sized to today's consumption becomes a speculative position if your load falls.
• No certificate transfer, no green claim. Without explicit REGO transfer drafted into the contract you have bought a price hedge and nothing reportable.

Basis risk: the gap that breaks the hedge

If a VPPA were a perfect hedge it would be uncontroversial. It is not, and the reason is basis risk — the difference between the price at which the contract settles and the price you actually experience.

Two distinct mismatches create it. Locational basis arises because the generator settles against a wholesale node or index that is not the price feeding your import meter. In a market with growing locational and constraint effects, the day-ahead index your VPPA references can diverge from the cost embedded in your own supply contract. Shape (or profile) basis arises because a solar farm produces in a midday-weighted pattern that does not match your consumption shape; the achieved capture price for that solar profile can sit below the flat baseload index, so the hedge volume and your load volume drift apart.

• Settlement node vs your meter — the reference price is the generator's, not yours; the wider the geographic and contractual gap, the looser the hedge.
• Generation shape vs demand shape — solar's midday peak rarely mirrors a 24/7 industrial or data-centre load, so volume cancels imperfectly.
• Cannibalisation drift — as more solar is built, the capture price for solar hours falls relative to baseload, steepening shape basis over the contract life.

None of this makes a VPPA unworkable — it makes it a job for a team that can model the residual exposure, not eliminate it. The honest framing is that a virtual PPA converts a large, obvious wholesale risk into a smaller, subtler basis risk. That trade is worth making for a corporate with a treasury function to monitor it; it is a trap for anyone who assumes the word 'hedge' means 'risk-free'.

IFRS 9 hedge accounting and mark-to-market P&L

This is where virtual PPAs separate the genuinely sophisticated buyer from the merely enthusiastic one. Because no commodity is physically delivered to your own use, a VPPA generally fails the 'own-use' exemption and is treated as a derivative under IFRS 9. A derivative must be carried on the balance sheet at fair value, and that fair value is re-measured every reporting date.

The consequence matters enormously. Over a 10–15 year contract, forward wholesale curves move constantly. Each move changes the mark-to-market value of your VPPA — and unless you do something deliberate, every one of those swings flows straight through profit and loss. A finance director can find a quiet quarter disrupted by a large non-cash fair-value movement on a contract that has not yet settled a single penny. For a listed business, that volatility is precisely what TCFD-conscious boards do not want appearing unexplained in their results.

The remedy is to designate the VPPA as a cash-flow hedge and apply hedge accounting, which parks the effective portion of fair-value movements in other comprehensive income rather than P&L until the hedged exposure occurs. But that designation is demanding: you must document the hedge relationship at inception, demonstrate an economic relationship between the VPPA and a forecast electricity purchase, and prove hedge effectiveness on an ongoing basis. The very basis risk described above is what erodes effectiveness — if the settlement node and your load drift too far apart, the hedge becomes 'ineffective' and the ineffective portion lands back in P&L anyway.

• Confirm whether your VPPA qualifies for own-use exemption before signing — most do not.
• Decide at inception whether you will pursue cash-flow hedge accounting; retrofitting it is far harder.
• Stress-test the mark-to-market range your auditors and board will tolerate across the forward curve.
• Tie the effectiveness assessment back to the basis-risk model — they are the same question viewed from two directions.

If reading this section made your finance team uneasy, that unease is the correct response. The accounting is not a footnote on a VPPA — it is a primary design constraint that shapes whether the deal is even worth doing.

The IASB's own-use work in this area is framed around physical power purchase agreements, and a separate set of amendments addresses contracts referencing nature-dependent electricity; a cash-settled virtual PPA sits outside the physical own-use question entirely. Source: IFRS Foundation — IFRS 9 Financial Instruments, verified 10 September 2026. This page is not accounting advice; confirm treatment with your own auditors.

Who should sign one — and who absolutely should not

The right buyer for a virtual PPA is narrow and specific. It is a large, investment-grade corporate with an in-house treasury function, a multi-site or multi-jurisdiction footprint, and a public decarbonisation commitment that needs auditable backing. Tech and data-centre operators are the archetype: vast, geographically dispersed electricity demand that cannot all sit under one roof, balance sheets that can absorb derivative accounting, and TCFD and SBTi commitments that demand a Scope 2 lever with a paper trail. For these buyers the VPPA is genuinely elegant — one financial contract can green a whole portfolio of sites without touching a single roof.

The wrong buyer is just as clearly defined. An SME without a treasury function has no business taking on a 15-year derivative it cannot account for, model or unwind. Charities and public-sector bodies typically face procurement rules that prohibit speculative-looking financial instruments, and rarely have the covenant strength a generator demands. For all of these, a physical corporate or on-site PPA delivers the same renewable kilowatt-hours with none of the accounting freight — and the corporate vs utility PPA comparison sets out where each physical route fits. The honest advice is often: if you have to ask whether a VPPA's accounting will be manageable, it will not be — choose a physical structure instead.

Is a corporate virtual PPA the same as the government Contracts for Difference scheme?

No — and the confusion is entirely understandable, because two different things in the British electricity market are called a CfD and a corporate buyer meets both. The settlement mathematics is deliberately similar: a fixed strike price, a market reference price, and a cash difference paid one way or the other. Everything around that mathematics is different.

One practical consequence follows, and UK buyers routinely miss it. Output already contracted under the government scheme cannot have its price risk sold twice, so a generator holding a scheme contract cannot also write you a virtual PPA on that same output. This is a supply-side constraint rather than a pricing question: it means virtual PPA availability in Great Britain tracks the merchant and subsidy-free build pipeline, not the auction results. If a developer offers you a synthetic deal on an asset, establishing which of the two contracts that asset already holds is the first diligence question, ahead of the strike price. Our guide to how corporate off-take contracts are put together covers the wider bilateral market.

Source: DESNZ — Contracts for Difference (LCCC as counterparty; sealed-bid allocation rounds, annual since Allocation Round 5; strike price versus reference price) and DESNZ government response on AR7 reforms, July 2025 (20-year CPI-indexed contracts for solar and wind from AR7; 15 years before). Verified 10 September 2026; contract term re-verified 26 September 2026.

REGOs, Scope 2 and what a UK buyer can actually claim

Because no power physically reaches you, the renewable attribute has to travel separately. A well-drafted VPPA transfers the generator's certificates — REGOs in the UK, or guarantees of origin in other jurisdictions — to you alongside the financial settlement. Those certificates are what let you report renewable electricity under the market-based method, support a Scope 2 reduction, and feed a credible TCFD disclosure. Without explicit certificate transfer in the contract, you have hedged a price but bought no green claim — a surprisingly common drafting failure.

It is worth being precise about the UK certificate, because nearly every widely-cited explainer of virtual PPAs describes American RECs or EU guarantees of origin instead. The British instrument is the Renewable Energy Guarantee of Origin (REGO). Ofgem administers the scheme for Great Britain on behalf of DESNZ, and for Northern Ireland on behalf of the Utility Regulator, and one REGO is issued per megawatt-hour of eligible renewable output. Its statutory job is Fuel Mix Disclosure — the obligation on licensed suppliers to tell customers what generated the electricity they sold. Since 1 April 2023, EU guarantees of origin are no longer recognised for GB Fuel Mix Disclosure, so a certificate bought on the continent does not do this job here. In a virtual PPA the REGOs move to you by contract, separately from the cash, on a timetable the contract has to set out — how REGOs are issued, transferred and retired walks through the process.

What those certificates support is a market-based Scope 2 figure. Under the GHG Protocol an organisation reports Scope 2 two ways: location-based, using an average grid emission factor, and market-based, reflecting the contractual instruments it actually holds. The Scope 2 Guidance sets eight Scope 2 Quality Criteria that a contractual instrument must meet to be a reliable data source for the market-based method, which is why REGO transfer needs a contractual timetable rather than a good intention. UK statutory reporting draws the same distinction: the government's environmental reporting guidelines encourage organisations that are not dual reporting to use the location-based method, so a market-based claim has to be built deliberately rather than assumed. The practical point for a virtual PPA buyer is narrow and important — the hedge changes your cost, the REGOs change your reported Scope 2, and only one of those two things happens on its own.

That separation also makes additionality cleaner: a long-term VPPA underwriting a new solar farm can demonstrate that your money brought new capacity onto the grid, which is exactly the story a science-based-targets reviewer wants to see. The flip side is documentation rigour — the same precision the IFRS 9 designation demands also governs whether your green claim survives audit.

SPPA is an independent editorial and matching service, not a provider, installer or FCA-authorised broker. We do not execute VPPAs and we do not give regulated financial or accounting advice. What we do is explain the mechanics in plain terms, set realistic strike-price expectations, and introduce qualifying off-takers to vetted utility-scale developers for a disclosed referral fee. If you are weighing a virtual PPA against a physical structure, the most useful next step is to compare them side by side and pressure-test the accounting with your own auditors before going to market.

• Read the PPA structures guide to see how a physical bilateral deal differs from the synthetic route.
• Map your Scope 2 and TCFD requirements before deciding whether a financial structure is even necessary.
• When you are ready for a provider introduction, request indicative terms or contact us with your load and reporting profile.

Sources: Ofgem — Renewable Energy Guarantees of Origin (REGO) (one certificate per MWh of eligible renewable output; Ofgem administers on behalf of DESNZ; EU guarantees of origin not recognised for GB Fuel Mix Disclosure from 1 April 2023). GHG Protocol Scope 2 Guidance (eight Scope 2 Quality Criteria for contractual instruments). Environmental reporting guidelines (SECR), last updated 29 March 2019. All verified 10 September 2026.

Frequently asked questions

Related on this site

• PPA structures hub — How a physical corporate PPA differs from the synthetic route
• Corporate PPA vs utility PPA — Bilateral corporate route compared with the utility-supplier route
• PPA pricing benchmarks 2026 — Strike prices and tariff bands by structure
• TCFD disclosure and solar PPAs — Using a PPA as an auditable Scope 2 lever
• PPA providers and the market — Who develops the utility-scale solar behind a VPPA
• Get indicative PPA terms — Request a provider-neutral introduction

Virtual PPA

Everything above describes what the instrument does. What it is like to buy is a separate question, and it catches most first-time off-takers out: there is no installer, no roof licence, no site survey and no construction programme. You are contracting with a generator or its route-to-market party, and the paperwork resembles wholesale energy trading documentation rather than a project package.

Expect two layers. A framework or master agreement carries the definitions, credit support, events of default, termination and settlement machinery. A confirmation sits underneath it holding the commercial terms — strike, contracted volume, reference index, start date and tenor. Five of those points absorb most of the negotiation:

• Volume basis — pay-as-produced against the asset's metered output, or a fixed contracted quantity with the generator carrying any shortfall.
• Reference index — named precisely, with a stated fallback if that index is discontinued or restated.
• Credit support — parent guarantee, letter of credit or rating triggers, running in both directions, because either party can end up out of the money.
• Certificate transfer — whether REGOs follow the cash, at whose cost, and on what timetable.
• Assignment — what happens if the generator refinances, or sells the asset mid-term.

Keep one piece of arithmetic in front of the board throughout. A strike of £55–£75/MWh (indicative for UK solar in 2026) is 5.5–7.5 p/kWh, and that is a wholesale commodity price. A delivered import benchmark of roughly 21–25 p/kWh also contains network charges, policy levies, capacity costs and supplier margin, none of which a synthetic hedge touches. Placed side by side unadjusted, the strike looks like a saving of 65–78% — it is not, and that comparison should never reach a business case in that form. Test the counterparty before the price: the generator will run a credit assessment on you, and the covenant test cuts both ways. For the profile of UK organisations already doing this, see who is signing corporate solar deals in Britain.

What documents do you actually sign for a virtual PPA?

Usually two. A framework or master agreement sets out definitions, credit support, events of default and the settlement machinery, and a confirmation underneath it carries the commercial terms: strike price, contracted volume, reference index, start date and tenor. There is no roof licence, EPC contract or operation and maintenance agreement, because nothing is built on your site.

Synthetic PPA

Synthetic PPA, virtual PPA, financial PPA and corporate contract-for-difference all name one instrument. Trading desks tend to prefer "synthetic" because it describes the intent exactly: the contract synthesises the economics of buying renewable power without any of the physical apparatus that normally comes with it.

The comparison that makes it concrete is the sleeved deal. Under a sleeve a licensed supplier sits in the middle, takes the generator's output, shapes and balances it, and delivers it to your meter on a single bill — so you change supplier, and somebody is paid to manage imbalance. Under a synthetic structure nobody stands in the middle, nothing is delivered, and your existing supply contract is untouched. That single difference is why the two price differently: a sleeve carries a supplier service cost that a synthetic contract does not.

The corollary is a list of things a synthetic PPA cannot do, worth putting in front of anyone expecting it to solve a building problem:

• It does not reduce network charges, levies or supplier margin — only the commodity layer of the bill is hedged.
• It installs nothing, so it has no effect on an EPC rating. The floor to let commercial property is EPC E today; an EPC B standard is proposed for 2031, for buildings over 1,000 m² only, and remains subject to secondary legislation.
• It puts no generation behind your meter, so there is no resilience or outage benefit.
• It does not remove the need for a supply contract, or the tender that goes with it.

Where you control a suitable roof, a physical tariff in the 9–18 p/kWh range displacing 21–25 p/kWh of delivered import is a direct cash saving rather than a hedge — and the two are frequently run together rather than treated as alternatives. The side-by-side comparison of financial and physical routes sets out where each earns its place.

Is a synthetic PPA the same thing as a virtual PPA?

Yes. Synthetic PPA, virtual PPA, financial PPA and corporate contract-for-difference all describe one instrument: a cash-settled hedge referencing a generator's metered output. None of them involve delivered electricity. A sleeved PPA is different, because a licensed supplier sits in the middle, shapes the output and delivers it to your meter on one bill.

Virtual PPA UK

Three pieces of British market plumbing decide how a virtual PPA behaves here, and none of them are optional reading before signature.

Settlement is half-hourly. GB wholesale trading resolves into 48 settlement periods a day — 17,520 a year — and the reference price in your confirmation is normally a day-ahead index or the asset's achieved capture price measured across those periods. A monthly average is a different number entirely.

The green claim runs on REGOs. Renewable Energy Guarantees of Origin are issued per megawatt-hour of eligible generation and tracked through an annual compliance cycle, so certificate transfer needs a timetable in the contract rather than just a clause. Get it right and the volume supports a market-based Scope 2 reduction; get it wrong and you hold a price hedge with no reportable claim attached to it. How REGOs are issued, transferred and retired walks through the process.

Terms of 10–15 years are the UK norm, long enough that market arrangements will move inside the contract — which is why index definitions belong in the risk register rather than the boilerplate.

Synthetic PPA UK

Before a UK business goes to market for a synthetic hedge, five internal questions decide whether the deal is even viable. All five are answerable without a single conversation with a generator, and working through them first saves months.

• Is a decade-long derivative inside your hedging policy? Plenty of corporate treasury policies were drafted around short-dated FX and interest-rate exposure and simply do not contemplate a ten-year commodity position. If yours does not, that is a board decision to take before requesting pricing.
• Have your auditors pre-cleared the designation? Agree the IFRS 9 treatment and the effectiveness testing method with them ahead of signature. Retrofitting cash-flow hedge accounting afterwards is materially harder.
• Will your covenant carry the credit support? The generator's lenders size security against their downside, not your comfort.
• How much load are you confident of in year twelve? Hedge the volume you will still be consuming late in the term, allowing for efficiency works, site disposals and electrification. Contracting against today's consumption is how a hedge quietly becomes a speculative position.
• Who carries a change in the index? Change-in-law and index-cessation drafting does more work in a synthetic contract than a physical one, because the whole settlement depends on a published number a third party calculates.

One point of UK tax housekeeping, because it comes up constantly. A synthetic PPA hands you no asset, so there is no capital allowance question to answer at all. Were you buying a system outright instead, solar is a special-rate asset and does not qualify for full expensing: the 100% route is the Annual Investment Allowance, up to £1m, with 50% first-year allowance on qualifying spend above that. Under any funded PPA those allowances sit with whoever owns the plant, never with the off-taker — where each PPA route lands in the accounts takes it further.

How much of our electricity load should a UK synthetic PPA cover?

Less than you currently consume. Size the hedge against the volume you are confident of still using late in a ten to fifteen year term, allowing for efficiency works, site disposals and electrification. Contracting against today's load risks leaving you hedged on electricity you no longer buy, which turns a risk-management tool into a speculative position.

A virtual PPA is only as green as the certificates attached to it, so it is worth understanding how REGO certificates are issued and retired before you rely on the claim in a published report.

The hedge itself does not decarbonise anything; the certificates do, which is why market-based Scope 2 reporting is where a virtual PPA earns its keep.

A synthetic deal is only one of several routes to the same objective, and how the six PPA structures compare sets them side by side on tariff, term and who takes physical delivery.

A virtual PPA does not change metered consumption at the site, so on its own it will not discharge the energy audit duties under ESOS.

Since the settlement is itself a climate-linked hedge, treat TCFD-aligned reporting of a VPPA as part of the business case rather than an afterthought.

Both settle against a reference price, but how a VPPA differs from a utility PPA explains why the counterparty and the risk profile are not the same.

A virtual deal is one of two main ways to buy a remote farm's output, and the physical alternative is set against it in our guide to off-site routes.

Keep going

• The EPC Contractor in a PPA Structure
• In-front-of-Meter PPA Explained
• O&M Under a Solar PPA: What the Provider Covers
• Sleeved & Off-site Solar PPA Explained
• How Solar Power Purchase Agreements Work
• End-of-Contract Options on a Solar PPA