solar power

An energy-efficient cleaning robot

State-of-the-art solar cells are efficient – but are even more so when they are kept clean. A cleaning robot developed by Norwegian researchers enables solar panels to deliver at full capacity.

Does ‘green energy’ have hidden health and environmental costs?

Production of electricity is responsible for about a quarter of global greenhouse gas emissions, and demand is poised to rise as underserved populations connect to the grid, and electronics and electric vehicles proliferate. So stopping global warming will require a transformation of electricity production. But it is important to avoid various environmental pitfalls in this transition, researchers say.

Svalbard’s electric power 
could come from hydrogen

Longyearbyen, the world’s most northerly city, could save more than 100 million kroner (11.5 million US dollars) a year in the cost of electricity, if a completely green hydrogen-fuelled power station is built in preference to laying a cable from the mainland, according to calculations made by SINTEF scientists.

Future solar cells will be building materials

Solar cells will soon become integrated into roofing and exterior facade materials. We will save on construction materials and manpower – and save money on our electricity bills too.

I ein heilt ny metode i produksjon av solceller, brukas mindre energi, billegare råvarer og urein silisum. Foto: Thinkstock

Cheaper silicon means cheaper solar cells

A new method of producing solar cells could reduce the amount of silicon per unit area by 90 per cent compared to the current standard. With the high prices of pure silicon, this will help cut the cost of solar power.