Energy Affordability and Net Present Value - Part 1
Net Present Value In The Wind Industry
Contents
Introduction
What Is Net Present Value?
Example Calculation
Assessing NPV And Its Usefulness
Concluding Remarks
Bitesize Edition
Net Present Value (NPV) measures the value of all future cash flows for a project or investment. These cash flows are discounted to the future to account for the time value of money.
In an example provided by research from Johnson and Solomon, we’ll explore the NPV for a wind turbine project.
As I discussed last week regarding LCOE, there are many assumptions that have to be made with these calculations. Inaccurate assumptions therefore can heavily influence the final metric and any conclusions we draw from it.
However, if we take a worst-case scenario in calculating these metrics, can we assess which of these energy projects are best equipped to navigate volatile conditions? Let’s explore below.
Introduction
As I continue to explore affordability metrics in electricity generation, I’m hoping to find some metrics that we can rely on. In exploring the levelized cost of energy, I concluded the assumptions required could lead to misleading figures, and the period of low interest rates made some projects appear cheaper than they would be, especially now we exist in an environment where this isn’t the case.
In hoping for a stronger metric, I move on to net present value.
What Is Net Present Value?
Net Present Value - The value of all future cash flows over the life of an investment, discounted to the present.
Quite a lot to break down here. Let’s take it section by section.
Cash flows are the money that is coming in and out. So, it is how much cash a company or project has coming in or going out as a result of its activities.
The discounting refers to the time value of money. Because of inflation, £1 today is worth less than £1 was last year. In floating rate currencies, inflation is the trade-off for central banks, which have greater flexibility in monetary policy and money supply. Discounting also accounts for different levels of risk in different projects.
By using NPV, we can look at a project, and assess if initial costs will be worth it years down the line. When considering the lifetime of electrical infrastructure, this could be a useful exercise.
Now that we’ve determined that we can look at the money coming in and out of an energy project and assess its potential financial success or failure, all while accounting for the time value of money, I’m feeling optimistic about this metric. Let’s look at an example.
Example Calculation
Taking help from research by Johnson and Solomon, I’ve created the following cost outflows for a wind turbine:
Year 0:
Turbine Cost = $2,000,000
Transportation = $200,000
Construction = $800,000
Years 1-5
Research Project = $5,000
Years 1-30 (Ongoing Costs)
Maintenance Cost = $50,000
Insurance Costs = $3,000
Operation Costs = $50,000
Now to assess the inflows:
Years 1-10
Production Tax Credit = $75,000
Years 1-30
Electricity Generation = $300,000
Renewable Energy Credit = $90,000
The equation for NPV is as follows:
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