Why do we need to be energy efficient?

The less energy we use, the longer the world's natural resources, such as oil and coal, will last.

This is essentially because energy reserves will be used at a slower rate.

In addition, many experts believe that being more energy efficient is the only way to slow the march of global warming.

Not saving on energy can also have more immediate consequences.

California has struggled badly to keep pace with its energy needs.

As a result, last year the State suffered a series of 'brown-outs', which plunged large residential areas into darkness.

How energy inefficient are homes in the UK?

Nearly 30% of all carbon dioxide emissions from UK power stations result directly from supplying homes with electricity.

We use twice as much lights, kettles, computers and DIY equipment now than we did during the 1970s, and by 2010 we will be using yet more - 12% more, in fact.

Much of the energy is also used to heat our homes, and this is where we could make the largest savings.

More than 40% of all heat lost in an average home is through the loft and walls.

How much can be saved?

Consequently, the Energy Saving Trust says �5bn is wasted on energy in the UK every year.

Households could save on average �200 a year in utility bills just by taking a few energy saving measures.

Such as?

Insulating cavity walls can reap big dividends.
Reducing heat loss through the wall by up to 60% can save on average between �70 and �100 on fuel bills.

In addition, the energy trust recommends that people fit a jacket to their hot water tank. It can save �15 a year.

Fitting energy efficient lighting - as opposed to the traditional 60 or 100 watt light bulb - can also have a major impact.

If every UK household installed three compact fluorescent light bulbs, enough energy would be saved in a year to supply all street lighting.

Even replacing an old boiler can save more than a fifth of the average household fuel bill.

Is there help available to households looking to become more energy efficient?

Various grants are available from government, local authorities and even energy suppliers.

Grants are available to people from a variety of backgrounds.

As a rule oft thumb, the largest grants are generally available only to those over 60 or to low income households.

However, many households, regardless of income, can apply for discounted energy efficient light bulbs, and there are cash-back schemes available for anyone installing new heating systems.

The Energy Saving Trust website has full information on grants and offers available.

What is the government doing to make sure it happens?

In response to a call for worldwide action at the 1992 Rio earth summit, the Energy Saving Trust was set up in the UK.

The purpose of the trust is to encourage energy efficiency in UK homes and businesses.

The main message coming out of the Energy Saving Trust is that people need to be more conscious of their energy use - from improved insulation to choosing to take a shower rather than a bath.