You need a leap of faith to buy into Ceres Power, a manufacturer of energy-efficient boilers, but investors should be rewarded.
Listed on AIM two years ago, the company is still testing its main product - a domestic boiler that uses fuel cell technology - and has yet to make a profit. This year its shares have underperformed the market - the stock peaked at 334p in April and is now closer to 200p. But by the middle of next year Ceres aims to start showing prototypes of the boilers; if all goes well, they could be in the shops in 2009.
Morgan Stanley estimates that the product will cut the average household's annual utility bill by a quarter. With gas and electricity suppliers facing new rules next year designed to reduce customers' energy use, the likes of Ceres could be in huge demand.