Is the solar power industry good

Could solar power be more efficient?

More efficient solar cells mean we could get much more than today's 2.4% of global electricity supply from the sun. Solar is already the world's fastest growing energy technology. Ten years ago, there were only 20 gigawatts of installed solar capacity globally - one gigawatt being roughly the output of a single large power station.

Are solar energy systems becoming more prevalent?

Although solar power continues to account for a small share of the overall energy supply, the residential and commercial sectors are slowly embracing renewable energy. As prices continue to decline, it is expected that solar energy systems become more prevalent.

Why is solar power cheaper than other energy sources?

Making cells also takes energy, but solar power is fast making that abundant, too. As for demand, it is both huge and elastic—if you make electricity cheaper, people will find uses for it. The result is that, in contrast to earlier energy sources, solar power has routinely become cheaper and will continue to do so. Other constraints do exist.

Are solar panels the future of electricity?

Panels now occupy an area around half that of Wales, and this year they will provide the world with about 6% of its electricity—which is almost three times as much electrical energy as America consumed back in 1954. Yet this historic growth is only the second-most-remarkable thing about the rise of solar power.

What if we could boost solar power?

Today's average commercial solar panel converts 17-19% of the light energy hitting it to electricity. This is up from 12% just 10 years ago. But what if we could boost this to 30%? More efficient solar cells mean we could get much more than today's 2.4% of global electricity supply from the sun.

Are solar panels a good investment?

Buying and installing solar panels is currently the largest single category of investment in electricity generation, according to the International Energy Agency (iea), an intergovernmental think-tank: it expects $500bn this year, not far short of the sum being put into upstream oil and gas. Installed capacity is doubling every three years.