When the electricity bill lands at the house into the future, the envelope could well contain a pleasant surprise. Rather than showing how much the family owes, it may well contain a cheque to cover the power it has generated for the national grid!

The government’s recently published energy and planning white papers combine to sketch a rosy future for householders generating small amounts of electricity on-site, which is then used to power a home’s Lighting, Heating and electrical appliances. Any excess power generated can be exported back again to the grid.

The energy white paper ‘Meeting the Energy Challenge’ ushers in a potentially bright future for electricity with detailed proposals pointing to how electric heating and hot water will undoubtedly be integral to reducing carbon emissions and improving energy security.

To meet the government’s target of reducing carbon emissions by 60% by 2050 (predicated on 1990 levels) takes a radical shift in energy policy, especially as power stations in the UK have the effect of generating over 1 / 2 of them.

This is given even greater emphasis by the fact that by 2020, 80% of the UK’s gas requirements should be imported and over half the world’s gas reserves are concentrated in just three countries, Russia, Iran and Qatar.

The white paper pushes for investment in increasingly low carbon electricity, principally large-scale renewables, clean coal and nuclear power.

Illustration of a ‘greener’ home

Microgeneration

…by 2016 new build will be zero carbon – attained by a variety of improved air-tightness and thermal efficiency alongside the use of microgeneration technologies…

This is utilised by low carbon homes – by 2016 all new build will be zero carbon – attained by a variety of improved air-tightness and thermal efficiency together with the usage of microgeneration technologies such as solar panels, wind turbines, biomass boilers and heat pumps as well as heat recovery ventilation systems.

Solar panels or photovoltaic cells are accustomed to generate power from the sun and changes to the look rules, due autumn 2007, imply that these should be easier to install. In line with the white paper, only one 1,300 eco-pioneers have installed panels on their homes while solar water heaters are much more widespread – the Department of Trade and Industry estimates there are about 80,000 used – as they are much cheaper to set up.

Mini wind turbines have also taken off recently, with more than 20,000 used by householders or small businesses around the UK. They are only viable in some areas where average wind speeds are high enough and there’s little wind turbulence from neighbouring buildings.

技術士試験　試験に出る　カーボンニュートラル and air source heat pumps are also set to visit a massive growth popular as on average for each and every 1 kW of electricity they consume they produce around 2 to 3 3 kW of heat.

Generating electricity locally avoids transmission losses and enables waste heat to be exploited for both heating and cooling. This applies as equally to commercial developments around individual homes.

In London, where 75% of the city’s carbon emissions come from buildings, the London Climate Change Agency, that is championed by god, the father Mayor’s office, is encouraging the growth of mixed-use developments which lend themselves to CHP (combined heat and power) systems, with residential and commercial property providing a balanced demand for energy night and day.