The railways in the UK, Australia and India getting power from the sun in different ways.
By Chris Wood
Fresh food, solar panels and a better world for our children and grandchildren is the plan.
BBC Radio Jersey
Jersey Electricity says its new solar farm will help the island achieve its target to become carbon neutral in the next 10 years.
The power company has been given permission to install more than 1,000 sq m (10,760 sq ft) of the panels at Woodside Farm in Trinity.
Once the panels have been installed, they should produce enough energy to power 37 homes.
Work is due to start on the project next month.
By Neil Prior
BBC Radio Devon
Future residents of a new housing estate in Devon could benefit from lower energy bills, as a result of a new project.Copyright: BBC
The new estate is being built at Clay Park in Dartington and all the houses' electricity will be generated by solar panels on the site.
Of the 31 eco-homes, 70% will be affordable and shares will be offered in the energy scheme which has been given a grant of £30,000 by the South West Energy Hub.
Totnes Renewable Energy Society (Tresoc) which is running the project, intends to raise the capital to install the solar PV panels, microgrid, and operating system, estimated to cost £180,000, through a community share-offer.
Sally Murrall-Smith of Tresoc said: "It's a big learning curve to be able to give a decent return to shareholders.
"But it's exciting to prove that we can do this and make renewable energy affordable for everyone."
By Craig Duggan
BBC Wales news
By Roger Harrabin
BBC environment analyst
By Padraig Belton
Technology of Business reporter
By Matt McGrath
By Douglas Fraser
Business and economy editor, Scotland
By Serusha Govender