R.H.I Calculator 2018
R.H.I tariff 1st October – 1st December 2018
Please enter the annual KW hour requirements taken from you E.P.C (Energy Performance Certificate) in the form below to calculate the annual payment from Ofgem.
You can find your E.P.C here: E.P.C Register
Please note OFGEM have capped the maximum KW hours per year to 25000 KW hours