We have solar thermal on our present house (Solartwin).
We are working with Cotteridge Quaker Meeting to install 12kWp of solar PV on its roof.
We wish to install both solar thermal and solar PV in our new house.

I have been concerned about climate change for many years and in the past few years have taken a number of steps to reduce my energy consumption/carbon footprint including:
not flying
cycling, public transport for most trips
trying not to buy stuff
eating vegetarian, growing own
reducing home electricity use by 2/3 (no use of electric heaters or tumble dryers, energy saving lightbulbs, short electric showers, turn everying off at mains, use laptop rather than PC, turn everything off when not in use, A & A+ appliances
reducing home gas use by 3/4 (insulation, good boiler, lower thermostat, use heat from conservatory to warm house but never heat conservatory)
We are now moving to a smaller house which we have insulated to the hilt to reduce footprint further:
www.cotteridge.quaker.eu.org/making_an_eco_house.htm

Have worked in our Quaker meeting to save energy by 66% (so far) through insulation and better heating. www.cotteridge.quaker.eu.org/concern_for_the_environment.htm

We found the solar thermal panel alerted us to the fact we didn't really need a tank of very hot water all of the time. We now have the water heating on for a half hour at the end of the afternoon but in the sunnier months we often turn it off and rely on the solar panel alone. We boil a kettle if we need more t wash dishes or put the boiler on for half an hour if we want a bath and the panel hasn't seen enough sun.