HOME owner Christophe Inglin's utilities bill is the envy of most people. For at least the past two months, he has not had to pay a single cent.

In fact, SP Services, which provides electricity, water and piped gas supplies, had to credit him about $30 each month.It is all thanks to the solar panels that he has installed on the roof of his semidetached home in Siglap. They use the sun's heat to generate energy to power all the appliances in the house, including air-conditioners and water heaters.

These panels are plugged into the national electricity grid and contribute power to it, hence saving him the need to pay for electricity.

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