[ljf]

Pretty sure even small domestic increases in gas prices will help speed that along. Already my energy bills have increased considerably across the last 10 years - if they carry on like that, and electricity becomes the cheaper way to run my house, I'll change in a shot. If the costs (£2k ish for a new gas boiler and fitting) are similar, then I'm sure when will. If adding solar and/or heat pump will bring my costs down then awesome.