I make symbols from nature – hopefully to provide space and time for contemplation and peace.
Friday, July 8, 2011
I just don't get it....
And I note a number of respected economists talking about demand side modification trying to reduce peak demand - presumably to boost off peak demand and even out the load on power generation.
Time was that nature's supply cycle induced rest in us - when the sun went down we socialised by the fire for a bit and then went to sleep.
Just because machines can work 24/7 to pay off capital investment doesn't mean that we must. Just because coal fired power stations take a long time to crank up and are better at providing constant power than variable supply (resulting from variable levels of activity) doesn't mean that this is the only way to run our civilization. I'm quite happy to sleep at night and be glad that my refrigerator and the hospital can run all night without me. Base load could be reduced dramatically if we didn't treat people like machines. Peak load can be handled a lot better by the various renewables and a smart grid - in the end you don't need to generate so much power if you only generate it when you really need it - a bit like my microwave oven - a short sharp burst that only does the job I want and doesn't waste anything actually reduces my electricity bill.
What would Australia's power needs look like if we produced and priced electricity according to the capacity of a renewables grid and the realities of the way people really work, play and run their culture? How much of our "always on" culture is because we want it and how much is it machine induced insomnia?
People like to party all night occasionally - fine - but take on the full cost and don't do it too often. It's more fun if it's a rarity done for fun rather than a compulsive whirl of events where you can never relax.
I don't get it... base load ... peak load.... what's driving all this? People or machines? If people know what is available they'll tailor their culture to get the most out of it. So stop worrying and learn to love...... well, they are smarter than that, right?
Thursday, March 20, 2008
Not So Smart Meters?
I'm not so sure about the “smart” meters being installed to tell consumers what their power is costing at any given time of the day. This sounds like a perpetuation of night rates electricity; the aim of which was to increase power consumption at night. A time at which people wouldn't otherwise use it but so that the coal fired power stations had a more even load. This was needed because coal fired power stations aren't very responsive to fluctuations in demand - they need hours if not days of notice in order to vary their output.
If our aim is to increase the use of sustainable sources of electricity then we want to encourage hydro, wind, biomass and solar. Hydro electricity can be very responsive to fluctuations in demand and solar is mainly generated during the day - solar thermal of course being the most effective on hot days.
So instead of asking consumers to time their demands why not charge the consumers a flat rate for electricity - $ per kilowatt the same no matter what time of day - so people will use the power when it's convenient and they won't use any more than they have to because it all costs money.
But we should pay producers of electricity a variable rate depending on the level of demand they are serving - so they would get paid very little to produce electricity in the middle of the night when activity is minimal. And they would get paid heaps on a hot day when the air conditioners are running flat out.
A household with photovoltaic cells on the roof is both a consumer and a producer of electricity. This system automatically sets the feed in tariff at a better level than the rate customers pay when they are home and the wheels of industry have slowed for the night. It would be up to the government to set the differential rates of payment to encourage more flexible electricity supply.
Similarly any new building could have a cap set for its demand on peak power supplies – encouraging new buildings to approach energy neutrality and sustainability. So “smart” meters are smart if they operate “backwards” with a variable rate and “forwards” at a fixed rate.... are they that smart?