Transition

No compromise on security of supply

In green and flexible power systems, services like rapid cures for hiccups in grid frequency can be valuable

FORESIGHT Climate & Energy Business Autumn / Winter 2017

Devoting an entire issue of FORESIGHT Climate & Energy Business to the subject of electricity storage in grid networks might seem like overkill, but the more evidence we unearthed about the role of storage, the more we saw an urgent need to set the record straight.
Electricity storage, it turns out, is no more essential for reliable supplies of electricity from a power system based on variable sources of renewable energy, like wind and solar, than for a system based on fossil fuels and nuclear power.
FORESIGHT examines the complex case for electricity storage in power systems in its latest issue. We trust you’ll enjoy this readable walk, undertaken with a cool head through a hot topic of our times.

We face a fundamental change of the cost structure on the supply side and a need for a fundamental change.

Jochen Kreusel

- Market innovation manager in the power grids division at ABB Power

They [the European Commission] are looking at this stuff backwards. I still think they are convinced the short-term market model could work even though they are also starting to realise that you need something parallel, with long term price signals that give investors confidence to invest in infrastructure and allow them to see a decent market return.

Francesco Venturini

- Global head of renewables for Italian utility Enel

Despite tremendous cost decline of wind and solar technologies, electricity prices will probably remain too low to attract the level of investment needed.

Fatih Birol

- Executive director of the International Energy Agency

The greatest barrier to overcome is the integration of variable renewables into electricity systems. This will require developing power system flexibility and also a friendly deployment of variable renewables.

Fatih Birol

- Executive director of the International Energy Agency

The not so essential role of electricity storage

Is electricity storage essential? Belief is a dangerous foundation for decision-making and beliefs about storage risk major investment errors

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In Brief

Elon Musk’s Australian banter about batteries; battery challenge from wind; low cost pumped hydro storage; IEA wants stronger signals for new grid flexibility; facts and figures indicate limited role for battery storage in the big picture

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The grid is a giant battery

Grid operators need incentives to use the grid as a large scale battery

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What storage is for and what it cannot do

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

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Transition

Storage has to multi-task to earn its keep

By relieving grid bottlenecks of surplus supply and providing bursts of power when needed, storage can add sufficient value to find routes to profitability, but they are limited

Understanding one another

No sign of a silver storage bullet

14/November/2017
Transition

Grid scale storage not essential but nice to have

14/November/2017
Transition

Key takeaways at a glance

14/November/2017
Business

Batteries for grid support not bulk supply

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