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Originally Posted by my54ford
no it's a system supply and demand problem.
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Time-of-use metering is all about system level supply and demand.
It is done by location but balances the overall system, and could cure much of the problem you are describing.
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The system operator (in this case MISO) sets prices for generation injection and withdrawal to and from the intergrated grid. Whenever LMP goes negitive you pay a penalty for injecting energy to the system.......
Midwest ISO - Market Information
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Everywhere -- at least as far as I know -- has the same problem you are describing -- whether there is Wind Power in the system or not. High daytime use, and low night-time use. The base-load generators (mostly Coal and Nukes) run all night whether there is any demand or not. Add an irregular night-time source like Wind and it makes it more so.
One area in your map there -- Ludington, Michigan -- has the condition so severe, they pump water up the dunes all night just to let it flow back through turbines during the day -- sort of a huge gravity based storage battery >>>
Ludington Pumped Storage Power Plant - Wikipedia, the free encyclopedia
Here (Texas) we have that condition particularly bad because the high daytime use is not just a daily issue but a seasonal issue. Our Summer daytime Air Conditioning is so high that our Peak Load is about double the Base Load needed. Come the hot Summer afternoon and we have every hydro (yeah we actually do have some power dams, here), and Gas Peaker Unit screaming to the max. Spring and Fall -- especially night time -- goes so slack we shut Coal plants down for a month or more.
As far as time-of-use metering -- here are some In Real Life examples:
So far we are only doing the Time-of-use billing for very large industrial and commercial type customers. But it works very well. An example of a project with this is one I worked on some years ago -- JC Penney headquarters in Plano (North side of Dallas area). JC Penney moved from a 50 story office bldg in NYC to a three story that covered something like 70 acres, as I recall. Huge Air Conditioning Load.
By using time-of-use metering the new HQ was designed with a huge Ice Block water tank in the basement. Overnight -- when demand is low and power is cheap, they freeze the water. And then that Ice helps keep the building cool all the next day. They pay about 1/3 for that night time power, and use much less during the day. An individual use that helps balance the overall system -- a win for everyone.
sample story >>>
Large ice storage system installed at J.C. Penney world headquarters. (heating, ventilation and air conditioning systems; Dallas, Texas) | Air Conditioning, Heating & Refrigeration News | Find Articles at BNET
Overall, our grid (ERCOT -- Electric Reliability Council of Texas) is presently installing something like 4000 node points to shift to system-wide time of use.
Ontario (Canada) is going to time-of-use metering -- this page covers the details, with real numbers, in an easy to read format >>>
Time-Of-Use Electrical Pricing and Billing
If your local area did time-of-use billing, even everyday-go-to-work people shift their use patterns. Baking a turkey? Do it overnight. Same with Clothes Dryer, Water Heaters, on and on and on.
You are already sort of experiencing Time-of-Use penalties in what you are describing -- that is what the penalties are coming from -- but once it hits the individual meters the use patterns can change, and you can make better use of the resources.