Electricity happens when electrons move from one atom to another.
Zimbabwe has a severe energy crisis because its major sources of electricity are struggling to keep up with demand.
A nanotube innovation using waste plastic could help solve one of the world's energy problems.
Electricity consumption will grow as more people switch to electric cars – but this could drive up emissions, unless power is sourced from renewables.
South Africa could become a test bed of technologies that enable households, especially in remote areas, to join electricity trading markets.
Almost 80 million Nigerians do not have access to electricity and its erratic supply is costing the economy an estimated $29 billion annually. Nigeria's abundant sunlight could be the solution.
Even fridge magnets have magnetic fields approximately 200 times stronger than Earth's.
The transport sector is the fastest growing contributor of greenhouse gases. Electric vehicles are a cost-effective solution.
There's mounting evidence that increased lighting has a range of negative effects.
Twelve power projects are in the running for federal government dollars: six pumped hydro, five gas and one coal. It's clear which one shouldn't be on the list, for economic and environmental reasons.
In sub-Saharan Africa there are more people with mobile phones than access to electricity, and their data could be useful.
Canadians will start paying for their carbon emissions this year, but the cost will depend on where they live.
There are precedents regarding power generation and ethanol but no nation has ever achieved as comprehensive and dramatic this fast.
Why is thunder so loud? It's because the amount of electrical energy that flows from the cloud to the ground is so enormous.
For many Haitians, blackouts do not just signal a political crisis; they also symbolize feelings of their loss of political power.
South African President Cyril Ramaphosa's pronouncements on the power utility Eskom, during the State of the Nation Address may lead to significant changes in country's energy policy.
Making electric grids better able to withstand extreme weather events will require teamwork from engineers, researchers and the government.
Energy companies offer thousands of different prices, making finding the best deal all but impossible.
Wireless charging is conceptually easy but technically difficult. Devices that can adjust themselves to optimize charging are on the way.
The government wants the power to break up power companies if they keep prices high. There's little to suggest it would achieve much.