electricity

14/November/2017

Batteries for grid support not bulk supply

Batteries score in their ability to rapidly inject bursts of electricity into the grid, but demand for the service is not greater in countries furthest ahead in transitioning to renewable energy
14/November/2017

What storage is for and what it cannot do

Special report - Electricity Storage part 2/5: Filling in for wind and solar over days of calm and cloudy weather is not a task storage can perform, even if it was a power system requirement
14/November/2017

No sign of a silver storage bullet

Special report - Electricity Storage part 4/5: No means of affordably storing large volumes of electricity in all geographies exists, but a robust grid, connected over a wide area, can deliver green energy reliability
In Copenhagen EnergyLab Nordhavn are experimenting with batteries14/November/2017

An urban energy battery trial

A dockland regeneration in Copenhagen is doubling up as a full scale energy laboratory, complete with an integrated battery bank
14/November/2017

Vanishing coast

Photo essay: Visualizing climate change on the Cape coast
07/July/2017

The dangers of using a sharp instrument

Auctions of power purchase contracts as a price-setting mechanism for wind energy are proving to be sharp tools for driving down cost. But sharp tools need handling with care
07/July/2017

Spending pennies to save pounds

Theme on Energy Efficiency part 1/5: The payback period for energy saving investments can be painfully long and the risk of no payback frighteningly big. There are ways to tear down both barriers
07/July/2017

Homes wanted for power hungry data centres

Countries with cool climates and reliable supplies of green electricity are favoured locations for these beating hearts of the digital age
07/July/2017

Vehicle to grid experiment with global perspectives

An international group of companies has come together in a Danish experiment that sells the power stored in parked electric cars to the grid operator for use as frequency regulation
07/July/2017

Scandinavia shows the way for clean transport

Theme on Energy Efficiency part 2/5: Norway has the world's highest proportion of EV owners and Denmark is electrifying ship propulsion. It is time to change the way electricity is billed for
07/July/2017

In the hands of engineers

Theme on Energy Efficiency part 3/5: Better engineering everywhere can cut industrial energy use in all applications
07/July/2017

A path to growth and welfare

Theme on Energy Efficiency part 4/5: Companies are not investing enough in energy efficiency in order to reap its benefits. This is the economic oddity of energy efficiency, says Brian Motherway, head of energy efficiency at International Energy Agency
07/July/2017

Make the real cost of energy visible

Theme on Energy Efficiency part 5/5: What it takes is the right information and the right prices
17/March/2017

In brief

Chinese CO2 emissions under control; EU fossil fuel dependency rises; conventional power bleeds billions of value; German Energiewende not a blueprint for the world; bank washes o dirty coal; o shore wind lull before the next storm
11/October/2016

The trillion dollar promise of digitalisation

A lot of unexploited value lies in the new ability to collect highly detailed data on electricity use (13:57)
11/October/2016

History lessons in why expensive is proving cheap

Plotting past trends in the cost of electricity clearly shows the way forward (06:37)
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