Solar energy microgrid viable for rural towns in Victoria
Australia’s micro-grid opportunity, Business Spectator, Tristan Edis, 21 Jan 14 A new report released today suggests that the improving economics of solar and battery technology mean that by 2020 it would be cost-effective for greenfield housing
What’s highly surprising is that the authors of the report suggest that it could be economically viable for some Victorian regional towns to move to self-contained solar micro-grids today.
The study was prepared by the Alternative Technology Association and the organisation Energy for the People, which is focused on developing community clean-energy power projects. It looked at three alternative Victorian locations for assessing the viability of stand-alone power solutions: the regional town of Bendigo; Werribee – a fringe suburb of Melbourne experiencing rapid greenfield housing estate growth; and inner urban Melbourne.
Importantly, it examined the viability of such a solution if provided at the scale of 500-plus homes, not just a single home by home installation. Under this 500-plus home model the authors estimated the provider would be purchasing the equipment at wholesale prices, saving 35-40 per cent on the retail price for all components other than the solar PV panels (where a discount of 10 per cent on retail prices was assumed).
The table below [see original article] summarises the situations where they foresee that stand-alone power solutions could be viable either right now or by 2020. In each scenario, a range of energy efficiency measures were implemented in parallel with the stand-alone power solution. Important to making such solutions financially viable is that they consider options to avoid the need for electricity to heat homes (important to reduce the capacity of the stand-alone power system required). Another important element is that they capture the financial benefits from avoiding the use of expensive bottled gas or the cost of new electricity or gas network infrastructure………
These results will be supplemented by a more detailed research study report that will be released in early 2014.http://www.businessspectator.com.au/article/2014/1/21/renewable-energy/australias-micro-grid-opportunity
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