This summer, the world's second solar-powered train will go into operation - taking hundreds of tourists on a scenic trip through Argentina, and eventually on towards Bolivia and Peru, all the way to Machu Picchu. Read on

A road surface that generates electricity from sunlight, absorbs noise, breaks down nitrogen oxides, defrosts ice in winter, provides valuable data and supplies electric vehicles with electricity. Sound too good to be true? It's true, and it's here. Read on

A team of engineers and architects has developed a paving system that turns footpaths and public furniture into solar energy producers. Read on

Solar power systems in buildings usually involve rooftop panels, but a new innovation could help capture solar energy via the walls themselves. Read on

The German startup Solmove has developed a system of glass panels embedded with solar cells that can be used to cover roads and generate energy. It's the latest step in solar road technology, and looks set to give a boost to the electric car market too. Read on

In many developing countries, huge amounts of food goes to waste simply because of a lack of cold storage options. ColdHubs has come up with a solution to Nigeria's food waste problem, with an innovative refrigeration system powered by the sun. Read on

The launch of a smart solar street lamp assembly line in Bamako, Mali, is a major step in the development of the solar industry in Africa. This joint initiative by Solektra International and Sunna Design should help create jobs and bring light to areas without access to a power grid. Read on

'Sin city' has a new virtue to be proud of: an innovative off-the-grid street lighting solution from New York City-based EnGoPLANET that is powered by footsteps, with a little help from the sun. Read on