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Renewable energy systems set to go ahead with new technology enhancing flexibility

Chatham House 22nd Aug 2018  Electricity Markets**  As renewables become a large share of the global energy mix, greater  electricity system flexibility will be critical and will originate from the
small scale, write Daniel Quiggin and Antony Froggatt.
The International Energy Agency forecasts that ‘solar PV and onshore wind together
represent 75 per cent of global renewable electricity capacity growth over
the medium-term’. Bloomberg New Energy Finance also estimates that by
2040, nearly three-quarters of the $10.2 trillion invested in new
power-generating capacity will be in renewables.
While this renewables rollout is a key part of global climate policy, the challenge is that the
costs associated with managing the system start to escalate once renewables
exceed a 30 per cent share of generated electricity. Unless properly
planned for, the growth in electric vehicle use and electric heating could
further amplify these ‘system integration costs’. They include the cost
of holding fossil fuel power plants in reserve for periods of low renewable
supply, grid upgrades and the dumping of power from renewables when system
constraints are reached.
So, as renewable energy pushes beyond 30 per cent,
and as a growing number of cars and domestic-heating systems begin to add
to power usage, how can governments ensure electricity is affordable? The
answer is ‘flexibility’. A raft of technologies already entering the
market, promise to radically enhance the flexibility of electricity
systems, helping contain system integration costs while accelerating the
low-carbon transition.

August 26, 2018 - Posted by | 2 WORLD, decentralised

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