Energy glossary - M

A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z

Energy terms defined on this page:

• Mega Watt (MW)
• Meter reading
• MPRN (gas meter point reference number)
• mWh

For a full glossary list click here

Mega Watt (MW)

A measure of power, one million watts.

Meter reading

Meter readings are used to bill you for your energy usage. See meter reading.

MPRN (gas meter point reference number)

Your MPRN is the unique number for the gas meter at your property. It relates to the meter not to you. It’s on your gas bill and should be a ten or twelve digit number.

mWh

Mega watt hour, one thousand kWh. A 1 MW power-generating unit running for 1 hour produces 1 mWh of electrical energy.