Supporting renewables, reducing bills: TransGrid adds storage to the grid

23/06/2016

​​TransGrid has announced the latest project in its rollout of large-scale battery storage technology. The installation of lithium ion batteries at the City of Sydney's Alexandra Canal Works depot will combine support for the electricity grid while providing cost saving services to the site.

Announcing the project today, TransGrid CEO Paul Italiano said large-scale batteries will play a large role in the future of electricity network services.

"We know our customers want to see more innovative services that help reduce costs. This initiative with City of Sydney will provide the equivalent of the daily energy use of 25 households."

This technology, deployed at scale, would provide the option of relieving stress during peak demand around Sydney CBD. The process, known as 'demand management' is aimed at reducing or deferring the need for new network capital expenditure on TransGrid's electricity network, ultimately reducing the cost of bills. The batteries are managed remotely and in real time by TransGrid.

"By partnering with a site where this service is needed, we can provide a benefit to support the renewable energy and costs of the council's depot, while sharing benefits to the wider community through the electricity network," said Mr Italiano.

The batteries on site will compensate for could cover – which affects solar panel generation – by automatically adjusting their output. They may also reduce consumer energy bills by minimising electricity drawn from the grid between 2pm and 8pm.

"Battery storage at Alexandria Canal Depot will enable us to put in more solar panels because we can better manage our flow of clean energy, storing power for lighting, air conditioning, plant and equipment at night," City of Sydney Lord Mayor, Clover Moore said.

"The City has ambitious targets to reduce greenhouse gas emissions by 70 per cent by 2030. We've already installed solar on over 28 of the City's buildings including Sydney Town Hall, libraries, depots and community centres. Battery storage is the next important step towards reaching our target and taking urgent action on climate change."

The installation of a battery at the City of Sydney Alexandria depot is part of an ongoing strategy by the TransGrid to integrate storage services into the grid and sharing benefits among direct customers and the broader community.

Background

Over the past decade, TransGrid has undertaken a number of significant demand management projects. TransGrid's 2014 iDemand system combined solar panel and battery installations to reduce on-site energy costs and was nominated for a Clean Energy Council award. The Alexandria installation is the first of two large scale installations planned to be connected to the TransGrid network using Automated Demand Response technology.