Inspire : Public Works Nov Dec 2013
21 According to Sydney Mayor Clover Moore, this means that, by early 2015, the City of Sydney will have slashed carbon emissions by about 40 per cent from street lighting it owns and maintains, saving ratepayers up to $800,000 a year in electricity bills and maintenance costs. The City of Sydney is one of the largest users of street lighting in NSW, with 22,000 lights, of which Ausgrid (formerly Energy Australia) maintains 13,500, while the rest are maintained by the council. Public lighting accounts for a third of the City's annual electricity use and 30 per cent of its greenhouse gas emissions. The new LED lights will slash these emissions by about 3000 tonnes a year -- the equivalent of taking 1000 cars off the road. STATE GOVERNMENT SUPPORT In August this year, the NSW government announced a grid-wide roll-out of LED lighting in 41 councils across Sydney, the Central Coast and the Hunter regions. A total of 250,000 lights are owned and maintained for these 41 councils by Ausgrid, with an agreement in place for a signifcant proportion of the new LEDs to be assembled and supplied by Central Coast company, Sylvania Lighting Australasia. "When a standard light on a suburban street fails and cannot be fxed, it will now be replaced with a super-effcient LED,” said NSW Minister for Energy Chris Hartcher in a statement at the time. As Australia’s frst large-scale adopter of LED lighting, the City of Sydney's initial trials, procurement and project deployment procedures have generated plenty of interest among public works professionals throughout the country. At the 2013 Inter national CONTINUE THE CONVERSATION Have your say on this story. Visit http://goo.gl/ S9XFMk to comment on this article. Public Works Conference in Dar win, City of Sydney's Manager of Infrastructure and Traffc Operations George Angelis presented a paper on 'The Delivery and Benefts of Sustainable Lighting’. One of the most useful phases of the project was the City of Sydney's participation in an international trial of LED lighting with cities including London, New York and Hong Kong, coordinated by The Climate Group – a globally renowned not-for-proft environment organisation. The Sydney trials took place over a period of 18 months in highly traffcked areas and, when public feedback was sought in early 2011, 90 per cent of sur vey respondents found the lighting appealing, and three quarters said it improved visibility. THE GLOBAL CONTEXT According to a report issued by The Climate Group, a full switch to LED lighting could reduce energy consumption for lighting by 40 per cent worldwide. This translates to approximately 130 billion euros in running costs and 670 million tonnes of avoided greenhouse gas emissions per year. Furthermore, the switch to LED lighting could cut back the need for capital investment in new electricity generation capacity of more than one trillion euros -- or some 640 power plants. So, if LEDs are so promising, why are they not yet installed in every house, skyscraper and city street? According to The Climate Group, the key barrier right now is up-front cost. The good news, however, is that as global uptake gains momentum, the price of LEDs is expected to progressively fall by 80 per cent by the year 2020. ••• LED lights installed on Sydney's George Street by UGL. STREET LIGHTING PRACTICE NOTE IPWEA is currently preparing a Practice Note on energy- e cient street lighting, which it intends to publish and distribute to local councils early next year, to coincide with the expected release of the updated street lighting standard AS/NZS 1158. The new Practice Note should be a welcome source of impartial advice to IPWEA members who are uncertain about the claims being made by advocates for di erent street lighting technologies and management arrangements.
Public Works Professional Sept - Oct 2013
Public Works Jan Feb 2014