Although solar cells are known for their exacting role in space research, there are many other less publicised activities in which they meet equaly demanding needs. For example, recent concern over the energy stiuation has focussed much attention on solar cells. With over %40 of received solar energy being re-emitted without contributing to our energy resources, solar energy conversion for terrestrial uses seems a fruitful area of development. Solar cells can play a major part here without adverse effects on the environment, and with other energy sources increasing radiply in price, they become a truly economic alternative. For further information contact Mullard Ltd.