The electricity industry is the ultimate in supply and demand. You turn on a 60W light, and the 1000MW nuke down the turnpike opens it's governor some.
Can't be stored, so has to be made on the spot.
Cost of production is maybe 2.5c/kwhr, and average market price maybe 4c. Spot prices can vary from -10c/kwhr to $10/kwhr at peak shortage times...market price to consumers is prolly 14c/kwhr.
Customers of power generators (the people who sell to you) want various levels of risk. Some ride the market, and will pick up power at often less than the cost of production, at the risk that one day, for a couple of hours, they will be paying 400 times the cost of production. Others negotiate a contract at the average cost (plus or minus depending on Terms and Conditions).
As ultimate consumers, there are smart meters that tell you the price in peak and no peak, allowing you to decide whether it's worth cooking that roast, or welding in the shed. You can choose interuptible (like Gary Allen has) where you choose to go black at times, to pay less the rest of the year.
The absolute least cost approach is to take some of he risk onto your own shoulder. Gary's case, house gets turned off while cooking dinner (can hedge against that with dutch ovens), retailer's case he's made a killing during the non peak times, and can hedge against high prices at the peaks.
As a petrol user, you can do most of the same things.
Prices low, fill the cars, and a few cans up. High, work from home (if available), car pool, cycle, walk to the shops, or chuck a sicky (depending on our risk profile).
All involve a level of inconvenience, where you pit your time against the costs that you want to avoid.
There have been hedging companies for petrol down here, where you pay for your anticipated (mileage and miles) up front, and get reimbursed every time you pay more than the contract amount.
But you lose the utility of your money, and adding a third party will almost certainly increase your (on average) costs.
Think of it as sharing the pain of the sub primes across the entire sector.
Can't be stored, so has to be made on the spot.
Cost of production is maybe 2.5c/kwhr, and average market price maybe 4c. Spot prices can vary from -10c/kwhr to $10/kwhr at peak shortage times...market price to consumers is prolly 14c/kwhr.
Customers of power generators (the people who sell to you) want various levels of risk. Some ride the market, and will pick up power at often less than the cost of production, at the risk that one day, for a couple of hours, they will be paying 400 times the cost of production. Others negotiate a contract at the average cost (plus or minus depending on Terms and Conditions).
As ultimate consumers, there are smart meters that tell you the price in peak and no peak, allowing you to decide whether it's worth cooking that roast, or welding in the shed. You can choose interuptible (like Gary Allen has) where you choose to go black at times, to pay less the rest of the year.
The absolute least cost approach is to take some of he risk onto your own shoulder. Gary's case, house gets turned off while cooking dinner (can hedge against that with dutch ovens), retailer's case he's made a killing during the non peak times, and can hedge against high prices at the peaks.
As a petrol user, you can do most of the same things.
Prices low, fill the cars, and a few cans up. High, work from home (if available), car pool, cycle, walk to the shops, or chuck a sicky (depending on our risk profile).
All involve a level of inconvenience, where you pit your time against the costs that you want to avoid.
There have been hedging companies for petrol down here, where you pay for your anticipated (mileage and miles) up front, and get reimbursed every time you pay more than the contract amount.
But you lose the utility of your money, and adding a third party will almost certainly increase your (on average) costs.
Think of it as sharing the pain of the sub primes across the entire sector.