Energy storage deployment reached a record yearly high of over 8GWh in 2018, nearly doubling from 2017

Energy storage allows for flexibility in the timing of when energy is supplied and when it is used. Energy storage comes in a number of forms, including chemical, kinetic, thermal, gravitational potential, electromagnetic, electrochemical and osmotic potential. The choice of storage solution depends on location as well as reserve service required, since different technologies can provide different capacities and durations of storage. Storage of solid, liquid and gaseous fuels has been commonplace for centuries; as the low carbon transition requires integration of increasing intermittent renewable sources into the system, energy storage is becoming integral for reducing dependency on fossil fuels and achieving a flexible, resilient energy network. Strategic placement of storage also gives the potential to avoid otherwise necessary network upgrades and curtailment of expensive assets. Greater connectivity between different energy networks, i.e. interconnection across national grids, can allow for security of supply without needing additional generation capacity.

Energy storage has applications varying from small-scale local systems in homes or commercial buildings – which are becoming increasingly common alongside the rise of distributed generation – to utility-scale storage systems. Common examples of energy storage include batteries (mainly lithium-ion) which store electricity as chemical energy, pumped hydroelectric storage systems which store gravitational potential energy in elevated reservoirs, and ice storage tanks which store thermal energy by freezing water with cheaper energy at night to meet peak cooling demand in daytime. Surplus renewable electricity can also be used to produce energy carriers like hydrogen, enabling the storage of renewable energy for long periods. Electric vehicles can also function as storage systems, since electricity can be transferred both to and from the batteries of plugged-in vehicles when needed. With energy storage expected to play a greater role towards a low-carbon and sustainable energy future, various storage technologies must be evaluated to balance the trade-offs between life-cycle cost, efficiency, material sustainability and safety.

Read our Energy World articles on how energy storage fits into strategies for carbon reduction.

Learn more about storage by reading our Energy Insights.

Learn about recent public funding for research and development of energy storage on our policy milestone website.

What's new?

Predicting well-stimulation results in a gas-storage field in the absence of reservoir data with neural networks. S. Mohaghegh et al. SPE Reservoir Engng., November 1996, 11(4), 268--272.

Methodology is presented that is capable of forecasting the post fracture deliverability on the basis of historical data in Clinton sandstone gas-storage field without detailed reservoir data. Post fracture well deliverability was predicted with approximately 95% accuracy. The neural network develop...

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Electricity Storage Network Consultation Document 2014

This report demonstrates the need for electricity storage in the UK and how it can form a valuable part of our national electrical infrastructure. The intention is to select a specific recommendation, from the four proposals outlined in this document, that could be given to DECC, DETI and regulatory...

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Events and training

EI LIVE free webinar | Energy Systems and Digital Technologies

3-12-2020
Online bookings are now closed. Please contact comms@energyinst.org if you would like to secure a spot on the webinar.

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EI LIVE | Energy Storage Fundamentals for Energy Security - March 2021

8-03-2021
<p> This 2-day virtual blended training course will allow you to gain a comprehensive understanding of energy security awareness and learn how to achieve energy security at national and power generator levels. It provides knowledge of energy storage systems as we transition from fossil fuel ba...

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Oil and Gas Industry Fundamentals - Awareness - March 2021

29-03-2021
This 2-day awareness training course provides delegates with an overview of principal activities in the international upstream, midstream and downstream petroleum industry.

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EI LIVE Free Webinar | Hydrogen: hype or hope?

21-04-2021
Could hydrogen mark the beginning of a new era for clean energy in UK and Europe?Please note that registration closes at 17:00 on 20 April 2021EI Knowledge Partner:Sponsor:

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International Symposium on Applied Microbiology and Molecular Biology in Oil Systems

8-06-2021
Call for Abstracts for ISMOS-8:For more information please visit www.ismos-8.org or view the flyer

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Technical guidance publications

Battery storage guidance note 2: Battery energy storage system fire planning and response

2020
This publication is free to download. Please log in to see the download option.This publication provides guidance on how to respond to BESS fires. It represents the 'current state' of knowledge (in 2019), but also identifies gaps in knowledge. The guidance covers primarily non-domestic battery insta...

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Battery storage guidance note 3: Design, construction and maintenance

2020
This publication is free to download. Please log in to see the download option.This publication captures learning and experience from battery storage construction projects, with special emphasis on ensuring the safety of such projects to people and environment.Based on industry interviews and availa...

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Guidance on the correct and safe handling of NOx reduction agent (AUS 32/AdBlue)

2020
This publication is free to download for registered users.This publication focuses on the installation of tank, pipe and pumping systems for the storage and dispensing of urea solutions (NOx reduction agent (AUS 32/AdBlue)) used in the treatment of diesel exhaust on vehicles.This document addresses ...

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Guidelines for the design and operation of petrol vapour emission controls at distribution terminals

2020
This publication supersedes the Guidelines for the design, installation and operation of petrol vapour emission controls at distribution terminals (4th edition), published October 2014.This publication has been prepared by the Vapour Recovery Working Group of the EI’s Distribution and Marketin...

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Code of safe practice for contractors and retailers managing contractors working on filling stations

2020
This publication is intended for all contractors, subcontractors and self-employed persons who are required to carry out work on a filling station, and for retailers who are required to manage contractors whilst on their premises. It focuses on safety and good practice procedures whilst referencing ...

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