2. Electricity. Average US usage is 11,000 kwh PER HOUSEHOLD, PER YEAR, or about 900 kwh PER HOUSEHOLD PER MONTH. A 90% reduction would mean using 1,100 PER HOUSEHOLD, PER YEAR or 90 kwh PER HOUSEHOLD PER MONTHSolar Renewables are deemed to have a 50% payback – that is, you get twice as many watts.Hydro and Wind are deemed to have a 4 to 1 payback over other methods – you get 4 times as many.
Riot 4 Austerity » 7 Categories
So we average 30 kWh per day?
When I started this I was averaging about 17 kWh. That probably was at the low point of the year as it was the middle of the Dry. In the Wet fan use goes up considerably.
When I do my Coolmob readings every week I tend to be between 12-14 kwH.
The single biggest contributor is the spa pump. Especially if the water is threatening to go green. My pump is electrically powered. I wonder if a solar pump/generator option exists?
The next one is the fans and lights. So it is a case of everyone trying to remember to switch things off.
The other thing is all of those little things we forget to switch off. Like rechargers.
I’ve taken to switching off the house at the fusebox when I go out. All except the fridge/freezer circuit.
Doing cold washes as opposed to hot washes in the front loader also makes a considerable difference.
Now where does Darwin’s power come from? Is it coal-fired or is it something else?
This report suggests that most of it is sourced from the natural gas of the Mereenie gas field in Central Australia. Given there are offshore supplies of natural gas soon to come on line this is reasonably positive. It also has an ammonia thermal storage system which avois the need for a refrigeration plant and is a much greener option.
Elsewhere you might find the odd diesel powered turbine but solar options have been quietly replacing these.
A methane gas powered plant can be found at the Shoal Bay tip.
While this sounds pretty good [and it is compared to a lot of places] there is a lot of pressure on the system as we seem to be in a transition phase:
14 February 2008
Power and Water to ‘power through’ gas field supply transitionPower and Water Corporation confirmed today that due to the expected decline in gas supply from the Mereenie and Palm Valley gas fields, it is currently supplementing gas supplies with diesel for power generation at the Channel Island Power Station.
So it is no wonder that PowerWater are encouraging people to reduce their consumption.
So where is all of the power going?
Air conditioners make up 70% of peak load with the worst occurring around 2 pm. Think of all of those shops and offices that have you shivering when you walk in the door. The workplaces where you take a cardigan to keep you warm because the aircon is too cold. The newer houses with dubious hot box tropical design.
Urban Ecology Australia has some suggestions. They aren’t necessarily that pleasant so we really need to do behavioural changes. Turn the aircon down a couple of degrees. Use the timer functions. Switch the thing off especially if there is noone in the room. Use fans instead. Dress for the climate.
Any other suggestions?
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Filed under: 90% Reduction
1. Gasoline. Average American usage is 500 gallons PER PERSON, PER YEAR. A 90 percent reduction would be 50 gallons PER PERSON, PER YEAR.No reduction in emissions for ethanol or biodiesel.Public transportation and Waste Veggie Oil Fuel are deemed to get 100 mpg, and should be calculated accordingly.
Riot 4 Austerity » 7 Categories
This one is hard, very hard. I am lucky in that there is a bus stop on the next street and another a short walk away so I can catch the #4 and #10 buses relatively easily. So that makes buses a timing issue.
The local shopping centre is within coo-ee so it isn’t that far to walk to it for small trips like milk runs.
The main reason to take the car is to carry all the people we carry. And when I restart work, to get to work.
Our household quota of petrol is 200 gallons yearly or 757 litres. That’s 14.02 tanks per year as the CR-V takes 54 litres. So if I can keep it down to one tank per month with the occasional extra one…
The good news is that is exactly what is happening at the moment while I am on maternity leave. The bad news is that work beckons in 3 months time. If I get to work where I want to work then I can keep this up. Otherwise I will be on the other side of town which will add 15 km per day. Public transport would not be an option 
.
So how can I extend that tank of fuel?
I already keep my revs down as much as possible.
I’m buying the E10 blend which theoretically is a tad friendlier for the planet [and cheaper as well 
]
I’m overdue for a car service because I’m expecting the next service to cost about $1000 as it is the 100,000 one. But I am expecting the baby bonus payment any day now so that should sort out that issue.
Keeping the tyres pumped up helps.
Getting the kids to walk to the markets/shops whenever possible on the weekends. This works for the dairy and the organic shop. The supermarket is a bit far away still for the 3 year old. The kids can bike as far as the park near the pool which is a good start. And I have taken them to the local water gardens on the bikes with DD32 in the stroller.
I need to work on having a minimalist approach to stuff in the car to lessen the weight. At the moment that just isn’t happening.
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Filed under: 90% Reduction
Those of you who know me know that I have been quietly partaking in the 90% Reduction Project. Meaning reducing emissions to below 90% of the average American or Aussie.
And Garnaut very recently suggested that this was what needed to be done by 2050. And that’s coming from an economist. You can read all about it here: http://www.garnautreview.org.au/domino/Web_Notes/Garnaut/garnautweb.nsf
I’ve done some of the bigger behavioural changes and my figures are pretty good as a whole.
But I’ve still got a way to go to stop giving the planet grief.
So the next few posts will look at where I’m at with the 90% reduction.
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