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It’s payback time – The costs of going green
Typical extra cost per homeTypical payback period in years
Install high-efficiency condensing gas boiler£1703
Improve insulation by 20% £2004
Energy provision by combined heat and power plant£100015
Solar waterheating£200018
Water-saving devices around the home£12025
Generate electricity using wind turbines£350040
Generate electricity using photovoltaic panels£5000120
Greywater recycling (recycling washing water to flush toilets)£1800No payback
source: Richard Hodkinson Consultancy