Shared solar and storage could deliver more for households

Solar farm (Genesis FRV)

The Australian Renewable Energy Agency (ARENA) is providing $112,400 support for Moreland Energy Foundation Limited (MEFL) to investigate a model for shared solar PV generation and energy storage capacity in metropolitan suburbs.

MEFL and project partners GreenSync and Jemena will undertake a virtual trial based on historical power consumption data from medium-density Melbourne suburbs. They will examine how PV and storage systems could provide โ€˜behind the meterโ€™ power needs of users and potentially show how networks could be used differently to allow more grid-connected solar.

ARENA CEO Ivor Frischknecht said the project would look at how communities can draw on renewable energy and storage for cheaper power and greater control over their energy.

โ€œPooling solar PV generation and storage across a number of households using a neighbourhood โ€˜microgridโ€™ could address certain challenges and allow residential customers to generate, store and use more of their own solar PV,โ€ Mr Frischknecht said.

โ€œAlthough record numbers of Australian households already have rooftop solar systems, there is a limit on how much grid-connected solar PV individual households can install and how much solar power they can generate.

โ€œThis is because our networks were designed to facilitate power flowing in one direction โ€“ from the grid to customers โ€“ and the system can run into technical problems if too much solar power is fed back into the grid at any one time.

โ€œIn addition to working with networks to look at ways to better manage the integration of renewable energy and two-way traffic, ARENA is supporting projects like this one to explore the logistical, regulatory and financial challenges involved in adopting microgrids in existing suburbs.โ€

Mr Frischknecht said adopting solar PV and battery storage at a community level can decrease installation and maintenance costs by leveraging the purchasing power of multiple residences.

โ€œMicrogrids could enable more solar energy to be shared between neighbours at peak times when grid power is most expensive, increasing the value to participating residences,โ€ Mr Frischknecht said.

โ€œIn addition, the ability to reduce peak demand through such a system could actively assist network utilities to manage challenging periods of variable power production and overall activity on the grid.โ€

The results of the $225,800 project are due in May 2016.

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