Research from Imperial College London has concluded that suspending weights in disused mine shafts could be a cheaper way of storing energy for frequency response than using batteries.
Projects on the drawing board propose connecting weights of up to 2,000 tonnes to winches.
When there is a surplus of energy in the grid – on windy or sunny days – then the winches will pull the weights to the top of the shafts.
When the power is needed, the weights can then be released quickly to generate a bu...
Wind power projects in Europe attracted €51.2 billion (£44.3bn) of investment last year, up 9% on the previous 12 months, according to trade body Wind Europe’s latest report.
Some 200 projects reached the stage of their final investment decision during 2017, with the UK and Germany accounting for more than half of the total.
Together, the projects would add a further 11.5GW to Europe’s wind power capacity.
The cost of investing in wind continued to fall, with the amount spent on infrastructur...
Major power stations may have to reduce their output during the summer after National Grid predicted lower demand for electricity.
The system operator expects an increase in generation from small-scale renewables connected to the distribution network will result in less power being needed from gas and coal-fired plants.
National Grid has forecast peak transmission system demand of 33.7GW, down from 34.3GW last year. Minimum summer demand is expected to sit at 17GW, 600MW lower than in 2017.
Governments must support the “profound transformation” occurring across the world’s power networks, according to a joint statement from four trade bodies.
The Canadian Electricity Association, the Edison Electric Institute in the United States, Eurelectric in European and the Japanese Federation of Electric Power Companies have stressed the importance of policy and regulatory support.
At the International Electricity Summit in the US, the four electricity associations pledged to work more clos...
Connecting small-scale energy storage units to the grid is economically viable and could also bring benefits to local communities, according to a new study.
The report – published by DNV GL and based on work by an industry-wide consortium that includes energy storage firm Alfen and Dutch flexibility aggregator Peeeks – outlines a decision-making framework to help grid operators and other stakeholders identify and optimise business models and revenue streams for community storage.
At present, d...