Projects will often, but not always, have one or more supply contracts. Supply contracts are those for major items which are required to run the plant. Examples include:
- Fuel supply agreements
- Water supply agreements
- Electricity supply agreements
- Reagent supply agreements
Projects such as this include conventional thermal power plants (fuel supply and transport, sometimes water and reagants) and desalination plants (electricity supply).
Some projects will not have any supply agreements. Most renewable energy projects fall into this category, since sun and wind are free to the project.