Local Govt | National News Video | Parliament Headlines | Politics Headlines | Search

 

Zeroing in on energy efficient buildings

Zeroing in on energy efficient buildings

A Victoria University of Wellington study shows that retrofitting New Zealand’s commercial buildings to use less fossil fuel-generated energy could save enough energy to power many homes in the South Island.

Research from Shaan Cory, who will graduate with a PhD in Architecture from Victoria next week, investigated whether New Zealand’s current commercial building stock could be converted to net zero energy.

“A net zero energy building is one that is energy efficient, and offsets any energy that was generated from greenhouse gas emitting fuels with renewable energy generation such as hydro, solar and wind,” says Shaan.

He found the current commercial building stock could be converted to eliminate the use of greenhouse gas emitting energy without New Zealand needing to generate more renewable energy.

Shaan’s research shows the energy saved by retrofitting all commercial buildings could power 330,000 homes. The reduction in greenhouse gas emissions would be equivalent to the methane emissions produced by 200,000 dairy cows.

Converting all of New Zealand’s commercial buildings may seem a large task, says Shaan, but half of the net zero energy target could be achieved by retrofitting just 1,200 of the largest of New Zealand’s 27,000 commercial buildings. The savings from these large buildings would be equal to the annual electricity generated by all wind turbines in New Zealand.

“A net zero energy building stock would lower climate change-inducing carbon emissions, improve energy security for New Zealand, and create buildings that provide better thermal comfort for their occupants.”



Shaan reached his findings by constructing energy models for a sample of existing buildings, matching their attributes and energy performance. The models were then retrofitted with a set of energy conservation measures.

He says the most effective energy saving techniques are more efficient plug-in equipment, lighting, heating, ventilation and air-conditioning, and the installation of electric light-dimming.

Shaan currently works as a building scientist at engineering firm Beca where he focuses on sustainable design and energy management to reduce the energy consumption, costs and greenhouse gas emissions of buildings.

His research was supervised by Associate Professor Michael Donn and Emeritus Professor George Baird from Victoria’s School of Architecture.

Shaan will graduate with a PhD in Architecture on Wednesday 18 May.

ENDS

© Scoop Media

 
 
 
Parliament Headlines | Politics Headlines | Regional Headlines

SCOOP COVERAGE: CHRISTCHURCH MOSQUES TERROR ATTACK


Gordon Campbell: On Asking The Banks To Be Nicer To Farmers

Few would begrudge the idea that banks should be made to act more humanely – given the obscene profits that the Aussie banks are extracting annually from New Zealand, they can surely afford to cut some slack.

Yet the interesting background statistic is that farm debt in New Zealand has exploded by 270% in the last 20 years, to around $63 billion... More>>

 

Mosque Attacks: 21 Month Prison Sentence For Sharing Live Stream Video

A Christchurch man who admitted redistributing the livestream video of the mosque killings has been sentenced to 21 months in prison. More>>

ALSO:

Operation Burnham Inquiry: Afghan Villagers Pull Out

The Afghan villagers involved with the inquiry into Operation Burnham say they have lost faith in the process and will no longer take part. More>>

ALSO:

Child 'Uplifts': Children’s Commissioner To Conduct Review

“At the time of the attempted uplift from Hawke’s Bay Maternity Hospital at the beginning of May, our Office shared our views on the critical importance of the mother-child relationship, and the fact that this relationship is denied to too many Māori children”, says the Children’s Commissioner, Judge Andrew Becroft. More>>

ALSO:

Fluro Logo, Definitely Not Racism, Activist Judges: Act Has Conference

“Finally, New Zealanders will have the right to challenge bad laws in court. If the courts find that a law hasn’t been made in accordance with the basic principles of good lawmaking, it can be declared invalid." More>>

ALSO:

Money Found: Revised Offer For Teachers And Principals

PPTA and NZEI have recommended that revised offers from the Government to their members are ratified, Education Minister Chris Hipkins has announced. More>>

ALSO:

Discussion Doc: National's Primary Sector Plans

Today National has released our third discussion document, this one on the primary sector. It showcases our positive and innovative approach to what is the backbone of our economy, Leader of the National Party Simon Bridges says. More>>

ALSO:

 
 
 
 
 

LATEST HEADLINES

  • PARLIAMENT
  • POLITICS
  • REGIONAL
 
 

InfoPages News Channels