Grid Battery Storage Limited

Grid Battery Storage Limited

Intelligent Energy Storage Solutions


What we do

GBSL is  working to deliver electricity storage projects meeting commercial needs as they emerge. Our first projects are targetted at National Grid’s Frequency Response servicess. The directors of GBSL have an outstanding record in power industry project delivery, in a wide range of industry sectors. meet the team »

Our approach is to work only with technologies and suppliers which have already demonstrated delivery in a similar commercial situation – adopting new technologies only when proven. We seek to deliver maximum value by developing the projects on a supplier agnostic basis and then entering a tender process for project delivery. Project funding will be carried out on a competitive basis, seeking to minimise the cost of capital. Working with this approach, we will use our extensive network of industry and finance contacts to deliver cost-effective and reliable projects.

Why do we need electrical energy storage?

Much generation in Great Britain is either inflexible (for example nuclear) or intermittent (wind and solar).  This of course is not helpful to the GB electricity system where demand and generation need to match exactly at every instant.  Generators, in particular solar parks, are not able to access the highest electricity prices because these happen outside peak generation hours.  There are also transmission and distribution system issues arising from the large number of small generators connected to local distribution networks.  So there are a number of scenarios where electrical energy storage can be cost effective.

  1. Power quality and primary regulation.  The GB electricity system was designed for power flows from large, centrally located power stations, through the National Grid and distribution networks to end consumer.   The move to large volumes of small local generation, much of it generating with power electronics rather than traditional rotating machines, means that system power and voltage change so fast that new control mechanisms are needed.  Batteries are a key technology to provide this service.
  2. Time shifting. Utilities constantly need to match electricity supply and demand. Generation cost can be reduced by storing electricity at off-peak times, for example at night, and discharging it at peak times. Using storage to move power from off-peak to peak can be economic for all involved – including fewer start-stop cycles for gas and coal generation which increases efficiency and reduced emissions. In the GB we have pumped hydro and have recently installed a small number of large-scale batteries at distribution substations.
  3. Emergency power supply. Security of electricity supply is critical to most businesses and important to domestic consumers.   Battery storage can contribute to solution of this problem.
  4. Making more efficient use of the network. In a power network, transmission and distribution lines cannot be always be reinforced in time to meet increasing power demand or new local generation. Large-scale batteries installed at appropriate substations can mitigate this congestion and allow utilities to postpone or avoid reinforcement of the network.
  5. Isolated grids. Where a utility company supplies electricity within a small, isolated power network, for example on an island, the power output from small-capacity generators such as diesel and renewable energy must match the power demand. By installing EES the utility can supply stable power to consumers.
Different uses of electrical energy storage in grids, depending on the frequency and duration of use
Different uses of electrical energy storage in grids, depending on the frequency and duration of use

Contact Us

Registered Office
Two Hedges, Frome Road
Norton St Philip, Bath
United Kingdom

Company Number 09840463