Electricity Bill Calculator

A business electricity bill has more moving parts than the unit rate suggests. Wholesale energy, network charges (DUoS, TNUoS, BSUoS), policy levies (RO, FiT, CfD, CCL), supplier margin, broker commission and VAT all sit inside what looks like a single p/kWh number. When the supplier presents the figure on a single line, the only way to know whether the rate is competitive is to model it from the ground up.

Bill validation is the most common reason businesses come to Purely Energy. A 100,000 kWh per year mid-market site at 35 p/kWh is paying £35,000 in energy plus standing charges plus VAT, and a 2 p/kWh error (whether through misclassified VAT, an incorrect capacity band, or a non-commodity reconciliation that has not been applied) is £2,000 of overpayment per year. Multiply across a portfolio and the case for line-level scrutiny becomes obvious.

Purely Energy quotes are transparent by construction: wholesale, non-commodity costs, supplier margin and our own margin are shown separately on every offer, in the same units, on the same page, for every quoted site. If a current supplier or broker cannot do that, the bill calculator is the only way to reverse-engineer what you are actually paying for, and we will gladly run that exercise alongside a fresh tender so the comparison is structural rather than headline.