I continued deeply researching into New Zealand energy industry. I just noted some interesting information...
- powerswitch.org.nz :
> Electricity prices change due to number of reasons, including the overall competitiveness of the retail market, demand & supply levels, the cost of new generation, natural gas prices & delivering power cost.
> Strong demand for electricity in the 1960s & 1970s, the growth has required new power stations to be built ==> these are more expensive than existing ones.
> Around a quarter of country's electricity is generated using natural gas, the cost of gas increased sharply.
- www.nationmaster.com/country/NZ-new-zealand/ene-energy :
> 2005 : Oil comsumption - 7 million tons (#53 in the world)
> 2005 : Oil barrels daily - 151 thousands
> 1999 - 2000 : usage per person - 4.86 (#8 in the world)
> 2004 : Electric power consumption 36295 million kW (#51 in the world)
> 2000 : $0.79 per litre Oil consumption
More research from my group :
- Wind power generates 539mW provides enough energy for 160000 NZ house homes (3%) per year
Almost of my group information is the same as mine.