Video | Business Headlines | Internet | Science | Scientific Ethics | Technology | Search


Engineers research for cheaper electricity on Stewart Island

UC engineers researching for cheaper electricity on Stewart Island

March 17, 2014

The University of Canterbury (UC) is investigating ways of providing the Stewart Island community with a renewable electricity system.

Stewart Islanders presently rely entirely on diesel generators and pay about 81c per kWh, about three times the price charged in the rest of New Zealand.

UC Civil and Natural Resources energy engineer Dr Ian Mason is modelling various combinations of wind, solar and hydro generation for the island.

He is collaborating with UC electrical engineering graduate and overall project manager Robin McNeill of Venture Southland.

"A electricity system utilising wind, solar and / or hydro resources, but initially retaining the diesel generators for back-up duties makes sense," Dr Mason says.

Diesel from the mainland costs about $500,000 per year. An undersea cable from the mainland to link to the national grid would cost about $10 million.

The wind resource on Stewart Island is expected to be useful and any micro-hydro generation would be valuable. While Stewart Island gets low sunshine hours compared to the rest of New Zealand, the level is comparable to parts of Germany and Japan which have extensive solar powered installations.

Detailed on-site monitoring to obtain design information will begin once resource consents are obtained.

Note: UC’s Civil and Structural Engineering has been ranked 19th out of the top 3000 universities in the world in the latest QS rankings by subject.


© Scoop Media

Business Headlines | Sci-Tech Headlines


Hourly Wage Gap Grows: Gender Pay Gap Still Fixed At Fourteen Percent

“The totally unchanged pay gap is a slap in the face for women, families and the economy,” says Coalition spokesperson, Angela McLeod. Even worse, Māori and Pacific women face an outrageous pay gap of 28% and 33% when compared with the pay packets of Pākehā men. More>>


Housing: English On Housing Affordability And The Economy

"Long lead times in the planning process tend to drive prices higher in the upswing of the housing cycle. And those lead times increase the risk that eight years later, when additional supply arrives, the demand shock that spurred the additional supply has reversed. The resulting excess supply could produce a price crash..." More>>


Sweet Health: Sugary Drinks Banned From Hospitals And Health Boards

All hospitals and DHBs are expected to kick sugary drinks out of their premises. University of Auckland researcher, Dr Gerhard Sundborn who also heads public health advocacy group “FIZZ”, says he welcomes the initiative. More>>


NASA: Evidence Of Liquid Water On Today's Mars

Using an imaging spectrometer on MRO, researchers detected signatures of hydrated minerals on slopes where mysterious streaks are seen on the Red Planet. These darkish streaks appear to ebb and flow over time. More>>


Bird Brains: Robins Can Just Be Generally Clever

Research from Victoria University of Wellington has revealed that birds may possess a ‘general intelligence’ similar to humans, with some individuals able to excel in multiple cognitive tests. More>>


Psa-V: Positive Result On Whangarei Kiwifruit Orchard

Kiwifruit Vine Health (KVH) has received a Psa-V positive test result on Hort16A and male vines on a kiwifruit orchard in Whangarei. This is the first confirmed case of Psa-V on an orchard in the Whangarei region. More>>

Regional Accents: Are Microbes The Key To Geographical Differences In Wine?

A new study of six of New Zealand’s major wine-growing regions has found that differences in flavour and aroma of wine from different areas may depend more on microbes than was previously thought. More>>


Science: AgResearch To Cut Science Staff In Areas Of 'Reduced Demand'

“We are therefore consulting with our staff from today on a proposal to reduce science staff in areas of shrinking demand. Combined with recruitment planned in areas of growing demand, this would mean a net reduction of 15 scientists and 41 technicians at AgResearch in the 2015/16 year." More>>


Get More From Scoop

Search Scoop  
Powered by Vodafone
NZ independent news