Some of the building's electricity is provided by Photovoltaic cells.

The photovoltaic cell also provides a means of collecting the Sun's energy.

He added that photovoltaic cells were likely to be a cheaper energy source.

There are a range of emerging photovoltaic cell technologies used in these systems.

This is done by the use of a photovoltaic cell which uses energy from the sun to power the pumps.

The article gave the impression that photovoltaic cells are the solar energy industry.

In practice, single layer organic photovoltaic cells of this type do not work well.

New products also contain photovoltaic cells that can produce solar energy.

Photovoltaic cells, which make electricity from sunlight, are also dropping in cost.

The use of photovoltaic cells, which generate electricity with sunlight, is also growing.

Photovoltaic cells were not as efficient as they are today.

Inside a photovoltaic cell, light comes into contact with a semiconductor, like silicon.

Photovoltaic cells have a complex relationship between their operating environment and the maximum power they can produce.

Thin films belong to the second and third photovoltaic cell generations.

The utility is also working on photovoltaic cells, wind power and other renewable energy sources, he said.

Already, some 11 percent of the world's production of photovoltaic cells comes from the developing world.

Through all this, it was the photovoltaic cell that set performance standards for other solar technologies to reach.

To deal with this problem, the multilayer organic photovoltaic cells were developed.

Until now, the cost of photovoltaic cells has been considered too high to compete with conventional energy sources like coal and oil.

Photovoltaic cells can supply power for a host of small-scale applications.

In addition, photovoltaic cells on the roof will convert sunlight into electricity.

Photovoltaic cells on the roof the Woking pool in the park.

Alternatively, photovoltaic cells may be used to provide both control and energy for a phototrope.

It was previously known that sunlight is not absolutely necessary for photovoltaic cells to operate.

It is equipped with the first photovoltaic cell roof installed in Britain.