(12 years, 6 months ago)
Commons ChamberI thank my hon. Friend for that comment. He makes exactly the point I was moving on to.
Last year, the Environmental Audit Committee went to visit the Sustainable Building Centre in Leamington Spa, where we learned that if everyone in the UK with gas or oil central heating installed a high-efficiency condensing boiler, we would save more than 6.5 million tonnes of CO2 every year—and that is only one aspect.
The hon. Lady makes a good point, but a 20% VAT charge is still made, when it could be only 5% VAT. That would be one simple subsidy to encourage people to invest in better and more efficient boilers.
I thank the hon. Gentleman for that, but my point is that if home developers were obliged to pay into a central fund, we could start to ensure that people in social housing and those on the lowest incomes do not merely think about cheaper energy-efficient measures, but have a grant to enable them to achieve that. The hon. Gentleman mentioned insulation earlier, but improvement is possible from double glazing, too.
Particularly at a time when my constituency and parts of the south-east are under water stress, we must start to look at finding better ways to use our water. We need to be more efficient through rain water harvesting, using grey water and taking simple measures to improve sanitaryware systems, so that the cistern from the lavatory uses less water. All these measures could be done very cheaply indeed.
According to the Energy Saving Trust, each person in the average UK home currently uses 150 litres of water a day. Level 6 of the code for sustainable homes seeks to reduce that usage to just 80 litres—but, significantly, that applies to new-build properties. As I have already said, however, they are a tiny proportion of our housing stock, and far greater savings—both in litres per day and cost to the consumer—can be achieved through working on older properties.
Independent research has indicated that by shifting the focus on to the existing housing stock of 25 million homes, rather than on the already energy-efficient new-build sector, great efficiencies and more value for money can be delivered for the nation as a whole. That scheme would mean that existing home owners would see reduced energy bills, social housing associations would benefit from reduced maintenance costs and local employment would receive a boost, thanks to the number of trades people needed to carry out the work. New home buyers would be spared additional costs, which would in turn help to ensure the viability of many development projects—a critical factor for the UK economy given the already chronic under-building due to economic constraints.