Dublin-based solar power expert Warik Energy has advised anyone with a solar PV array or wind turbine that they can make significant cash savings through the installation of a smart energy storage system, ensuring 100% of the electricity they produce is used on-site rather than exported to the grid.

Local authorities upgraded hundreds of houses last year under a €20m government scheme, and the Department of Environment has doubled funding for 2010. With local energy agencies playing a key role on the ground, the programme offers vital lessons for keeping quality high in energy retrofit schemes. Words: Lenny Antonelli