Energy Group

 Transition Nelson Energy Group

Contact person is Baloo email  nzbaloo@gmail.com

Next meeting 21st January5:30pm , Nelson Environment Centre, 215 Akersten Street, Port Nelson.  

 

Previous Minutes

 Energy Group Meeting summary from 5th November 08

 

The focus of this meeting was to get some figures for our EDAP proposal.  We thank Frank for giving us some of his time and sharing his experiences as Energy Savings consultant for the Nelson Region.

 Discussion

 Energy usage by an average adult is approx. 50% on transport, 30% on house and 20% on food. (this figures will need further refinement).

 

Self Contained Towns: Best option to reduce transport costs is to plan for self contained towns, meaning making Nelson, Stoke, Richmond, etc. having each all services and jobs.  Then if you live in one town, you have all services locally not having to travel to next one.

 

Biofuel: One of the possible most attractive options for distributed energy generation is steam turbine fuelled by wood chips.  Reason for this:

  1. We have abundant forest residues in the region
  2. It's carbon print balanced

 

Water heating:

Solar water heater: it can take up to 13 years to pay off due to the high initial cost.  There are some options to offset this:

  1. Groups: People team in groups of 10 or more to bulk purchase reaching better deals.
  2. Government bulk purchasing and users paying off through rates.
  3. Grant to help users pay the system.

 Other option to save on hot water is to install a heat recovery on the shower drain.  This system can recover up to 30% of the heat and pays off in just one year.

 Saving on hot water is the most efficient option for saving on water heating.  Some showers are on a 23 lts/min.  A good comfortable shower can be from 9 lts/min.

 

Photovoltaic:  This can be an attractive option when using the grid as a battery.  This significantly increases the return of investment and makes this option more viable. We need a power company opening a scheme to purchase energy from the photo cells and then delivering when needed to the house at a fair rate.  By fair rate we mean that if the power company is saving on transmission losses, infrastructure, maintenance, jobs and ecological impact (dams, carbon power plants, etc). Then purchasing price should be fairly higher than the standard kilowatt consumer cost to encourage consumers to join.

 

Heating Coordinator at Business: On houses and offices, one of the biggest energy expenses is heating.  Having a single point coordinator for heating/cooling the office can save significant amount of energy by making sure that there is not one person trying to heat while other trying to cool down close by areas.

  

Others:

 We touched again on the importance of house insulation and double glassing windows. When not counting with double glass, a good set of curtains can do a great job.

 We hope to get EKA House Energy Rating for New Zealand.  This could encourage builders to construct well insulated houses (5 Star) to increase the selling value of the property.

 When recommending daylight for commercial buildings, need to make sure that there is no heat loss trough it.  Heat loss is much a bigger loss than what can be saved by lighting.

 Electronic ballast use much less electricity than magnetic ones (on fluorescent lighting).

 Government should establish a street lighting standard in lumens.  It seems to us that some cities have less density of lighting than others and this may not be in direct relation to crime.  Meaning statistically may not be a direct relation between more lighting less crime.

 Encourage capture of rain water from roof houses.  This can have a positive impact on less water demanded from council and on reduced electricity to run the water pumps.