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How many panels your roof could take, what they might generate and how much you’d use yourself.
Roof size and shape · daytime useWhether storing cheaper or solar electricity could suit the way your home uses power.
Half-hourly use · tariff · solarHow a heat pump would compare with your boiler on running costs, and what affects the result.
Gas use · floor area · insulationWhether a newer, more efficient boiler or better controls could cut the gas you use.
Boiler type · gas use · EPCSmart thermostats, radiator valves and schedules that match when you’re actually home.
Your heating pattern · occupancyLoft, cavity, solid wall and floor insulation: what you have, what’s missing and where to start.
Wall type · loft depth · EPCThe difference between decorative cladding and external wall insulation, and whether it suits your walls.
Wall construction · existing insulationWhether double or triple glazing is worth it for your home, and when it’s not the first priority.
Current glazing · window ageYour charging routine, your home and the tariffs that make charging cheaper overnight.
Overnight use · tariff optionsWhich grant and support schemes may be worth checking for your home under current rules.
Property · heating · scheme statusDraught-proofing, appliances, hot water and everyday savings.
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