This is the most cost-effective starter if you want to enjoy free hot water during the summer months, and up to 70% of your annual hot water (with a family of 5).

You need a south facing roof on which to install the solar tubes or flat panels and a dual coil water storage tank, unless you go for the siphon system recently developed. Make your choice.

There are grants available for this, so what are you waiting for? See the Greener Homes Scheme Phase III for details. There are Green Loans available to fund your installation costs, e.g. Bank of Ireland has both personal and business loans on offer, Permanent TSB supports home improvements and Rabobank supports organic farming, home improvements and business developments.

With falling house prices and recent introduction of Building Energy Rating on homes for sale or rent, you can add to the value by doing this, and save yourself money, even in the short-term.