How do you calculate the prices for Shape Shifters: Agile?

Your Shape Shifters: Agile price is made up of 2 parts: the unit rate and the standing charge. Here’s how we calculate each of them.

Your unit rate

We calculate your unit rate in pence per kilowatt-hour for each individual half-hour period. This is the formula we use to do it:

D + Q  + (W*P) = your unit rate

Where:

• D covers the costs of getting your energy from the grid to you - and contributing to government energy schemes

• Q shows the extra costs we have to pay for using the grid when it’s at its busiest. Outside of the 4-7pm peak, this is 0

• W is the wholesale cost of electricity during the half-hour period

• P is the uplift in energy costs during the 4-7pm peak. Outside of this period, P=1, so it doesn’t affect the price

Here are some examples to show how we work out your unit rate:

Peak example

Let’s imagine we’re calculating the price for 5:00 - 5:30pm. The inputs to the formula might look like this:

• D = 5p

• Q = 2p

• W = 15p

• P = 1.2

This would give a unit rate of 25p/kWh. Here’s why:

5 + 2  + (15*1.2) = 25p

Off-peak example

Let’s imagine we’re calculating the price for 2:00 - 2:30pm. The inputs to the formula might look like this:

• D = 5p

• Q = 0p (we’re off-peak, so this adds nothing to the price)

• W = 8p

• P = 1 (we’re off-peak, so this adds nothing to the price)

This would give a unit rate of 18p/kWh. Here’s why:

5 + 0  + (10*1) = 18p

Your standing charge

This is a fixed price that you pay every day, regardless of how much energy you use. You can find out what makes up this charge in our blog: Your business’ energy prices explained.