# Financing Renewable Energy Projects

By [agilibus.es](https://paragraph.com/@agilibus-es) · 2022-06-07

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We all know about global warming
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*   We all also know about the main advantage of renewable energy projects: **reduction of CO2 emissions**
    
*   Required low-carbon investment levels in green infrastructure to keep temperature increase below 1.5ºC threshold are enormous ($460B/yr until 2030, $1560B/yr thereafter)\*
    
*   There are additional considerations:
    
    *   What if your country does import oil and/or gas?
        
    *   Take advantage of your local resources
        
    *   Fuel is free! All countries have wind and/or solar to some extent
        
    *   Benefits to local communities
        
    
    _\* What investments are needed in the global energy system in order to satisfy the NDCs and 2 and 1.5 °C goals? – International Institute for Applied System Analysis_
    

What are renewable energy projects?
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*   Electricity is generated from a **renewable energy source** (e.g. wind, solar, hydro, biomass, tides, geothermal)
    
*   Instance of **infrastructure projects**. As such, characterized by:
    
    *   Capital intensive before any revenue is generated
        
    *   High risk / high return
        
    *   Long term investment horizons (10+ years)
        
    *   Complex contractual interplay between many parties (construction contracts, loan agreements, land leases, offtake agreements, interconnection rights, operation and maintenance, and many more)
        
*   Once these projects are up and running, the **cost of running them is almost zero**!
    

Examples of renewable energy projects
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![Ciudad Victoria & La Mesa wind farms in Tamaulipas, Mexico](https://storage.googleapis.com/papyrus_images/f658f07b401cd6b68c3779fec78ecea49d6ba3c387583917f3db687b1d27f630.jpg)

Ciudad Victoria & La Mesa wind farms in Tamaulipas, Mexico

![Los Remedios solar PV project in Acajutla, El Salvador](https://storage.googleapis.com/papyrus_images/5e7a44174567704a3b21832a926a3380c5e52c8416335f66636c6f75f8bb1504.jpg)

Los Remedios solar PV project in Acajutla, El Salvador

Examples of the contractual structure of a renewable energy project
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![Source: Tice and Walter [2014] based on Smith, Walter and De Long [2012]](https://storage.googleapis.com/papyrus_images/2a08c103e27c536a00dd88beccff1ea7b6d12b18719d0ac6a2e2a0174a882dc1.png)

Source: Tice and Walter \[2014\] based on Smith, Walter and De Long \[2012\]

Let’s build a renewable energy project!
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*   Not so quick… what options are available?
    
    *   You can start a development from scratch (**greenfield projects**) - High risk and high return
        
        *   Long development times
            
        *   High probability of failure, project development is complex and risky
            
    *   You can acquire a partially developed project (**brownfield projects**) – Medium risk and medium return
        
        *   Usually ready to build
            
        *   Construction risk
            
    *   Or you can acquire a project already **in operation** – Low risk and low return
        
        *   Think of it as a bond
            
        *   Stable and predictable cash flows
            
        *   All major risks behind
            

Show me the money!
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*   Once project development is ready, the time has come to commit serious money (mostly construction and purchase of equipment)
    
*   The most common tool used to finance renewable energy projects is **Project Finance**:
    
    *   Project owned by a SPV (**Special Purpose Vehicle**), completely separated from the project Sponsor
        
    *   **Finance is provided to the SPV**, that assumes the risks and the financial consequences
        
    *   If things go south, banks have **no recourse to the project Sponsor**, “only” the equity is exposed
        
    *   The project Sponsor keeps a **“clean” balance sheet**
        

### Corporate Finance vs. Project Finance

![Source: Financing and Investing in Infrastructure – Università Commerciale Luigi Bocconi](https://storage.googleapis.com/papyrus_images/9204176d626ece8d4dec04d527aaaf91fa4fb1778ff9840428218db87d4c4c61.png)

Source: Financing and Investing in Infrastructure – Università Commerciale Luigi Bocconi

Hold on… how much did you say you need!?
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*   Renewable energy projects have **big capital expenditure** **requirements** (CAPEX) and are highly leveraged (small equity vs. big debt)
    
*   Banks tend to be wary
    
    *   If things go well, **no upside**
        
    *   If things go wrong… **only recourse to the SPV**
        
*   Process to finance a renewable energy project tends to be long and complex
    
    *   Banks spend a high amount of time studying in detail the project (**Due Diligence**)
        
    *   Usually they do not want to do it alone – **Syndicate of banks**
        

What will the weather be like tomorrow?
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*   Renewable energy projects rely on electricity generation to generate cash flows
    
*   The problem with renewable energy generation: you cannot control when it is going to be sunny or windy
    
*   Through thorough measurement campaigns, it is possible to estimate the level of renewable energy resource of a project
    
*   Banks rely on these analysis to estimate the amount of debt the project is able to accommodate:
    
    *   **P-levels**: Annual generation levels to be exceeded (P50 and P90)
        
    *   **Coverage Ratios**: CFs available vs. debt service
        

![Source: Excel Probability Functions – Project Finance Institute](https://storage.googleapis.com/papyrus_images/86e6e732af5707171c952356794b826136ebd12e6a1cc14090e6e26afb07e9ef.png)

Source: Excel Probability Functions – Project Finance Institute

The future ain't what it used to be\*
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**_\*_** _Quote attributed to baseball-playing philosopher Yogi Berra_

*   Historically renewable energy projects have been developed leveraging **government support**
    
*   Goal: Achievement of **technological maturity** through subsidized tariffs
    
*   Every unit of renewable energy generated was paid at a fixed price not determined by the market (**Feed-In-Tariffs**)
    
*   This model has worked very well in the past: Renewable energy technology has achieved **grid parity**
    
*   Now what? An additional layer of complexity enters the game
    

![Source: enie.nl](https://storage.googleapis.com/papyrus_images/2f425d5401fbb6d8f0940c86025200d6cb21ba8c8242bb3156a78d21b7b8e61c.png)

Source: enie.nl

It's tough to make predictions, especially about the future\*
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_\* Again Yogi Berra_

*   Governments around the globe have **slashed subsidized tariffs**
    
*   Renewable energy projects sell electricity **directly to the market**
    
*   Electricity market price tends to be volatile and unpredictable, hence direct exposure to **market risk**
    
*   Debt tenors tend to be long (10+ years)
    
*   The project needs **stable cash flows** to pay back the loan
    
*   Banks get scared off, cancelling lending or reducing debt size and at hardened terms
    

![Source: Operador del Mercado Ibérico de Energía – Polo Español (OMIE)](https://storage.googleapis.com/papyrus_images/2fe1a9d235c84c5638a372db0eb0e2e67f12457b953acf69dda895c4a18f0026.png)

Source: Operador del Mercado Ibérico de Energía – Polo Español (OMIE)

PP… what?
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*   There are several tools available to transform volatile market prices into stable and predictable cash flows:
    
*   Power futures
    
    *   Traded in exchanges (e.g. European Energy Exchange EEX)
        
    *   Shorter-termed than required (max. 10 years) and low liquidity
        
*   Insurance products
    
    *   Derived from weather insurance
        
    *   Revenue swaps exchanging variable revenues for a fixed payment
        
*   Long-term electricity contracts (aka PPAs)
    
    *   PPA stand for Power Purchase Agreement
        
    *   An agreement between a buyer and a seller to sell a certain amount of electricity for an agreed term at an agreed price
        
    *   OTC market, bespoke agreements
        

Some additional notes on PPAs
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*   Preferred tool
    
*   PPAs can be physical or virtual
    
    *   Physical: there is a physical link between the renewable energy project and the off-taker
        
    *   Virtual: Financial contract (CfD); the renewable energy project and the off-taker can be not connected by a grid or even in different countries
        
*   As OTC products, PPAs can have several structures
    
    *   Fixed price
        
    *   Discount to market with floor (basically a put option)
        
    *   Cap and floor (collar)
        
*   PPAs are not risk-free
    
    *   Market risk, shaping risk, volume risk, balancing risk…
        

### Physical PPA

![](https://storage.googleapis.com/papyrus_images/b5d079aabbec2f83d3e0993254f1b37c363510daefd1f4d20e57df643a5f1a49.png)

### Financial/Virtual PPA

![Source: B. Douglas, G. Brindley, M. Labordena, and S. Dunlop, “Introduction to Corporate Sourcing of Renewable Electricity in Europe,” RE-Source, RESource, European platform for corporate renewable energy sourcing, Jan. 2020](https://storage.googleapis.com/papyrus_images/b42e7c56224df83e3d6f4d1cf4f09b59115d804cb5757c37fb14f6ae79c6319d.png)

Source: B. Douglas, G. Brindley, M. Labordena, and S. Dunlop, “Introduction to Corporate Sourcing of Renewable Electricity in Europe,” RE-Source, RESource, European platform for corporate renewable energy sourcing, Jan. 2020

### PPA Pricing Mechanism - Fixed price

![Source: Alastair Carrington (GE Renewable Energy), Power Purchase Agreement – A European Perspective](https://storage.googleapis.com/papyrus_images/e173ed5e324b5393b1f5e93fc9ac824437bf069655dae81b717d90a5056dbcab.png)

Source: Alastair Carrington (GE Renewable Energy), Power Purchase Agreement – A European Perspective

### PPA Pricing Mechanism - Floor Price with Discount to Market

![Source: Alastair Carrington (GE Renewable Energy), Power Purchase Agreement – A European Perspective](https://storage.googleapis.com/papyrus_images/b721cd99f6f02e30140cff67d6db6c2f82f658af50f2db4caa9937745bba702f.png)

Source: Alastair Carrington (GE Renewable Energy), Power Purchase Agreement – A European Perspective

### PPA Pricing Mechanism - Zero Cost Collar

![Source: Alastair Carrington (GE Renewable Energy), Power Purchase Agreement – A European Perspective](https://storage.googleapis.com/papyrus_images/06c7fd78af9aeb118241e3a28115b8967d29559be465eaff649fa9ce83b4bfe9.png)

Source: Alastair Carrington (GE Renewable Energy), Power Purchase Agreement – A European Perspective

Investment metrics
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*   Leveraging renewable energy projects with debt usually adds value to investors
    
*   Most common metrics to evaluate renewable energy projects (i.a.):
    
    *   For investors:
        
        *   NPV, IRR, MOI…
            
    *   For banks:
        
        *   Debt-to-Equity ratio, Debt Service Coverage Ratio (DSCR), Loan Life Coverage Ratio (LLC)
            

Key takeaways
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*   Building renewable energy projects require big capital investments upfront and feature long investment horizons
    
*   Project Finance is the preferred tool to finance renewable energy projects
    
*   Financing renewable energy projects is challenging due to volatility of cash flows (intermittent generation and market risk) – Tools available to mitigate these risks
    
*   There are several metrics available to evaluate the quality of renewable energy projects from a financing perspective, depending on your side in the transaction (investor vs bank)
    

Contact
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*   [Rubén Martínez Fanals](https://www.linkedin.com/in/fanals/)
    
*   [agilibus.es](http://agilibus.es/)

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*Originally published on [agilibus.es](https://paragraph.com/@agilibus-es/financing-renewable-energy-projects)*
