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Individually there are options. Some low/no cost - eg: heating down and switch off in unused rooms, wear a jumper, 2 min not 10 min shower, lights off as you leave room etc.
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This unfortunately will not be an option for many already in fuel poverty, as they have already cut consumption to bare minimum, often below that as its is now heat or eat option.
Maybe the government could move to providing homes with solar PV installations, say upto max of 8kw for free, with the option to add on extra KW at say £100 per KW, so if you wanted a 14KW system, you would contribute £600, a 16KW would be extra £800 etc.
It provides employment growth to ramp up installations, provides accelerated green energy target achievements, will ease the burden on home energy costs rises now and in future.
Monies for it could be found by halting the £11 billion smart metre roll out fiasco, reduce the nuclear power station builds an redirect into the scheme outlined above.
The criteria would simply be, if your home doesn't have existing solar system then you will get one. None of this means tested are age related rubbish they do now for grants, boilers etc, channel that monies into the scheme too.
It won't be 100% solution, and those that can't benefit, ie conservation area, flats, unsuitable structures etc could be targeted in other ways.
Money could even be taken from the fibre Broadband rollout, after all do you really need 100mb plus speeds, maybe reconsider fixed fibre altogether, take that money into solar scheme to and rethink Broad band strategy towards mobile connectivity instead.
It's not hard scheme to do, with systems far cheaper and better than when the used the feed in tariff model government used last time, but political will to do it is the issue.
OK, I don't solve immediate crisis, but i think the measures announced will fire fight that somewhat.