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All You Need to Know About Power Purchase Agreements (PPA)
Renewable energy projects, such as solar or wind parks, typically have high initial investment costs. As governments stop subsidizing them, Power Purchase Agreements (PPA) serve as alternative security to get third-party funding. By using this agreement, companies can lock in the price of their electricity and ensure a reliable power source for years to come.
But what makes a PPA for solar or renewable energy an excellent financial deal? This article will give readers an essential understanding of a Power Purchase Agreement for solar and other energy projects and how they can be used to make sound financial decisions.
What is a Power Purchase Agreement?
A Power Purchase Agreement (PPA) is a long-term contract between an electricity generator and an energy off-taker lasting 10 to 25 years. The contracting parties in a PPA commonly consist of the public and private sectors. The public entity, often a state-owned utility provider, is the off-taker or buyer. While the private entity, the power producer, serves as the seller.
The most popular type of PPA is a power purchase agreement for a solar park or a wind farm. Other types of power purchase agreements involve combined heat and power, geothermal plant, or wind farm. With a PPA, the off-taker can obtain affordable and reliable electricity without up-front costs. On the other side, the system owner can benefit from tax credits and make money from the sale of electricity.
Since the PPA for renewable energy serves as the primary revenue to an energy project, the risk allocation significantly lies in the seller’s ability to raise funds, recover capital costs, and reap a reasonable return on equity.
Forms of Power Purchase Agreements (PPA)
There are several forms of PPAs. But the most common are Physical PPA and Financial PPA.
Energy purchases made at the meter point are called Physical PPAs. Typically, a utility uses the current transmission lines to deliver power to its clients. The physical delivery of (or title to) the energy is made to a Physical PPA client via the grid.
Businesses can purchase renewable energy even if they do not own the reception point of production through a Financial PPA. It consists of green add-ons that provide a credit link between the buyer and the owner of the renewable asset. These attributes come in the form of energy credits, renewable energy certificates, etc.
When to Use PPA?
A PPA can be a smart choice for energy off-takers who:
- Are unable to benefit from tax incentives for renewable energy directly
- Want an energy system to be owned, installed, and maintained by a third party
- Want to guarantee the security of the energy supply
- Want to protect against rising energy prices without using capital
Among energy sellers, a PPA can:
- Guarantee the projected revenue of a project
- Protection against competitors selling cheaper power
- Public utilities will be buying the energy produce
How Does a Renewable Energy PPA Work?
A renewable energy PPA starts with building a renewable energy project or refinancing an existing one. The location of such a project should allow third-party ownership of energy generation assets.
Obtaining a renewable energy PPA involves several steps. Among the most common procedures are:
- Conduct financial feasibility
- Getting buying offers
- Negotiation of Terms
- Signing of Contract
- Supervising the PPA
Conduct Financial Feasibility for Project Funding
Renewable energy projects require a hefty initial investment. For example, the CAPEX for a utility-scale solar park is around $610 per kW per installed capacity. Therefore, it should start with financial due diligence and feasibility study.
The power producer must validate the renewable energy project’s financial viability. It refers to the ability of the renewable energy asset or investment to pay back its debt within the standard lending requirement or its capability to generate sufficient returns for investors, making up for the project risks.
Such financial analysis may include preparing three financial statements – Income Statement, Balance Sheet, and Cash Flows. The power producer may also need to prepare the following estimations:
From these financial analyses, investors and lenders can determine the model or structure of the renewable energy project. It will also display a win-win situation, not only for investors and lenders but also for possible off-takers.
Getting Buying Offers
After the financial analyses, the next step is to get buying offers. It usually goes through a request for a proposal or quotation (RFO/RFQ). Through an RFO/RFQ, the energy buyer will make an offer to purchase the power the renewable energy project will generate. The process is different for established energy buyers like Google. They will launch private auctions by inviting pre-selected energy developers to bid against each other.
Buying offers commonly contain the following items in the Term Sheets:
- Duration of the contract
- Electricity prices
- Payment structure
When comparing buying offers, conducting a price sensitivity analysis may be best to maximize the expected returns and reduce significant risks.
Negotiation of Terms
After receiving offers, the power producer will choose the best to serve its interest. Even though both parties agreed on an approximate price, negotiating PPA terms may take 6 to 12 months. It is the most critical step in a PPA process.
What Makes a Good PPA?
A Power Purchase Agreement (PPA) for solar farms and renewable energy is a legal contract between the buyer and seller. Therefore, it is vital to notice the terms that make a good PPA.
Longer Contract Duration
A longer commercial lifetime for a renewable energy PPA will benefit both parties. It should be around 15 to 25 years, enough time to recoup the project’s initial investment. Budgeting will also be more manageable with a stable cash flow over an extended period. It may be best to consider the following questions when deciding on the contract duration:
- How is the contract start date defined? Will it start upon commercial operation day?
- How long is the grace period if energy production ceases to happen on the agreed date? How much is the cost of the delay?
- How long is the fixed price set? Is there a need to renegotiate the price before the contract ends?
Updated Energy Pricing
A good PPA follows energy pricing based on current market trends. It also factors in inflation and the required return on investment. Since it may take months to close the deal, defining a reference price to mitigate significant price swings may be best. Escalators may be included in a good PPA for energy prices to fluctuate appropriately. An appropriately written escalation provision will aid in striking a fair balance between contract length and pricing due to increased operating costs or labor costs and inflation.
Defined Payment Structure
Your choice of PPA payment structure impacts how the parties split the energy risks. So, it should be clearly stated in a good PPA.
- A fixed price is paid for any volume generated under a pay-as-produced arrangement. The buyer will bear a portion of the volume risk in such a structure, while the seller accounts for over- or under-performance.
- In contrast, a monthly baseload structure is an arrangement where the buyer purchases a fixed volume of energy every hour of every month. The seller will bear the volume risk with a monthly energy production guarantee.
State Potential Risks
A good PPA defines all the potential risks of the renewable energy project. As such, it sets out the following details:
- The cost of purchasing and selling electricity
- When and where will energy distribution occur
- Which kind of energy will be transmitted
- Who will cover the transmission costs
Furthermore, the contract should also state the following:
- Regulatory obligations or incentives
- Rights of each party in case laws and regulations change
- Ways to settle disputes between buyers and sellers
Signing of Contract
After carefully negotiating terms, the next step in a Power Purchase Agreement (PPA) is signing the contract. It seals the obligation of both parties based on the agreed provisions.
Supervising the PPA
PPA does not end after contract signing. The work continues through active management and proper value tracking. Supervising a PPA means protecting its value against volatile energy markets. It includes periodic asset value monitoring and tracking market risks.
Advantages and Disadvantages of Power Purchase Agreement (PPA)
Like other financing solutions, a PPA has its advantages and disadvantages.
Advantages
- Off-Balance Sheet Solution. Regular payments under a PPA are treated as operating expenses like a standard utility bill. So, it is designed as an off-balance sheet financing solution, keeping debt-to-equity and leverage ratios low.
- Positive Cash Flows. A PPA covers 100% of the project cost. The power producer will only pay for the system once it starts to generate power. For off-takers, the price of electricity is typically lower than the retail rate. So, on both sides, a PPA produces positive cash flows.
- Predictable Energy Prices. With an agreed energy price for a specific period, a PPA has predictable energy prices. It protects off-takers against fluctuations in utility rates.
- Third-Party Operation and Ownership. Third parties typically install, maintain, and own a PPA energy system. As such, it allows the off-taker to avoid the complexity and risks of owning the energy system.
Disadvantages
- Limited Availability. PPAs may only be applicable in some locations. Laws in some countries, states, or local governments may not allow Power Purchase Agreements.
- Overpayment Risk. As mentioned, a good PPA has annual price escalators, usually between 1% to 5%. Once the retail rate of electricity declines, the off-taker in a PPA may pay a higher power rate.
- The Complexity of the Contract. Because a PPA includes detailed negotiation terms, it is a complex contract that needs thorough understanding before signing.
Why Do Energy Projects Need PPAs?
Renewable Energy Projects need a Power Purchase Agreement (PPA) for the following reasons:
- Hedging. Hedging means setting fixed electricity prices for a selected time frame. It guarantees a fixed price despite fluctuations in utility rates.
- Project financing. A renewable energy project needs a hefty investment. A PPA serves as a security to third-party funding. Third parties may include banks, credit providers, investors, or lenders. A PPA guarantees these third parties positive cash flows.
- Survive volatility risks. Energy prices are highly volatile. They can change frequently. A PPA typically covers long-term commitment. It guarantees a return on investment at a fixed price, resulting in the minimum risk of expected revenues.
Summary
A Power Purchase Agreement (PPA) has the potential to revolutionize the energy industry and support renewable energy projects. But it must be crafted to capture a reasonable and fair rate of return for investors and minimize financial risks.
Ultimately, understanding the implications of a PPA from a financial plan is essential to unlocking the potential of such agreements. An excellent financial deal can be the key to the success of an energy project.
eFinancialModels offer financial projections and forecasting models to help you make better financial decisions, like entering PPAs. These include energy project templates on Biogas (Waste to Energy), Geothermal Plants, Hydrogen Production, Solar Park, and Wind Farm.
