PPP项目购电协议可行性指南

June2026 Contents 1Executive summary..............................................................12Purpose of this feasibility guide.........................................23WhatisaPowerPurchaseAgreement(PPA)?.................34Key considerations for a PPA in a PPP context................65What to include in a feasibility study..............................106Conclusion and recommendations:Ablueprint for decision-making.......................................177Appendices.........................................................................18 1Executive summary The purpose of the guide is to support publicsector staff operating within a Private Finance The key components of a PPA feasibilityassessment are summarised below: •Strategic objectives•PPP baseline position•Options appraisal•Technical analysis•Financial modelling•Risk assessment•Delivery risks and mitigation•Adviser roles and required inputs•Legal and contractual review•Market engagement and soft market testing•Regulatory and policy landscape •understand the potential role for a PowerPurchaseAgreement(PPA)intheircontracts; •provide a guide to assessing the feasibility ofentering into a Power Purchase Agreement In an era of volatile energy markets andambitious climate targets, the PPA hasemerged as a strategic tool for the publicsector. A PPA provides a contractual It is worth empathising that a PPA feasibilitystudy within a PPP context must bestructured, evidence based, and focused onsupporting a clear value for money decision.It cannot simply assess technical or financial This document guides public sectorcolleagues through the process ofdetermining whether a proposed renewable This guide sets out the core componentsrequired to determine whether a PowerPurchaseAgreement(PPA)isviablewithinaPPP context. Collectively, these componentsprovide a structured and comprehensive Furthermore, the guide also shows howauthorities can assess the allocation of risksbetween the relevant stakeholders and the The overarching goal is to provide a clear androbust basis for public sector decision making,ensuring that any PPA entered into demonstrably 2Purpose of this feasibility guide ThisguideexploresthefeasibilityofaPowerPurchaseAgreement(PPA)withinaPrivateFinanceInitiative(PFI)orPublic-PrivatePartnership(PPP)framework.The guide asks the question, should a PPP project pursue a renewable energy Given the long-term, service-oriented natureof PPPs, any feasibility study must integratethe financial and operational intricacies of aPPA while addressing the unique challengesintroduced by risk transfer, whole-life costing, This guide provides stakeholders such aspublic sector decision makers, Authority’sRepresentative (or equivalent) and energyusers with a methodology for an assessment The objective of a PPA feasibility study is todeliver a detailed risk-reward assessment, to 3WhatisaPowerPurchaseAgreement(PPA)? TheDepartmentforEnergySecurity&NetZero(DESNZ)definesaPPAas“along-termelectricity purchase agreement between a generator and a buyer. The buyer can be autility, supplier or trader (who then goes on to resell it to a wide customer base), or a In essence, a PPA is a contract between twoparties looking to buy and sell energy. PPAsprovide a revenue stream that can help tofinance, and manage the energy supply for, heat (CHP)systems.Asimilararrangementisalsoavailablefor“green”gasandisknownasaGasPurchaseAgreement(GPA).Thefocusof this feasibility guide is a PPA for renewable The main benefits of a PPA are price certainty andimproved energy security. An added benefit of thePPA is often, depending on the generation source •Price mechanism‒Fixed / indexed / floor + collar•Typical Duration‒10–15yearsistypical•Volume risk‒Pay-as-generated, baseload or shaped•Curtailment rules‒Who is financially impacted if gridconstraints occur•Credit/security‒Parent guarantees, letters of credit The way pricing will evolve over the life of thecontract is negotiated between buyer and sellerand is typically indexed to inflation measuressuchastheConsumerPriceIndex(CPI),thoughagreements can also include fixed annualescalators. Typical contract terms are 10 to 15 Given the long-term, and in many casesenergy-intensive nature of PPP facilities,securing a predictable and cost-effectiveelectricity supply is crucial for a Project Scottish Futures TrustA feasibility guide for power purchase agreements in PPP projects DESNZ classifies solar and other renewables ashaving zero carbon emissions during generation,meaning a renewable energy PPA provides akey mechanism to meet the mandatory net zerotarget recognising interim emissions reductiontargets apply economy-wide and not directlyto individual organisations. Onsite or private ongoing facility management service) tomanage its operational costs and meet itsservice obligations and may be an importantconsideration for the Authority where the A PPA can offer this price certainty and stability,making it an attractive procurement