The "smart grid" will rely on "smart meters" and "smart receptacles" and "smart plugs" to ration power based on criteria. How much power do YOU get? It depends on what YOU use it for and what YOUR carbon footprint is.
The plans are already in place and the devices being tested in several markets. Dozens of companies are in the game and YOU the consumer have nothing to gain and everything to lose.
Your AC unit will cost more to run per KWh than your water heater or alarm clock. Instead of tiered rates based on overall usage, you will pay tiered rates based on the TYPE of usage and or your personal (or family) carbon footprint, and historical usage rates, and or local standards.
Somebody will determine what an acceptable AC thermostat level is and fine you, (on your bill), for power used if the thermostat is set lower than the acceptable temperature. They may also outright LOCK your thermostat or other devices to pre-approved levels or usage windows.
Try this on for size:
You have your AC set at 70 degrees. The powers that be decide that in Area X, (where you live), that 76 degrees is the acceptable standard for homes. Meanwhile 2 states away, the energy supply to Area Y is maxed. The "smart grid" decides that it needs to divert power to Area Y. The "smart grid" asks the "smart meters" to report what users are running "luxury items". YOUR meter reports that YOU are running your AC at 70 degrees and the local acceptable setting is 76 degrees. So, the "Smart grid" tells your "smart meter" to shut down the "smart receptacle" that is running your AC unit and only cycle it at 76 degrees as needed to maintain the "acceptable" temperature. At the same time your "smart meter" talks to your "smart plug" on your coffee pot and turns it OFF because coffee is a luxury and the power required to run it is needed elsewhere.
Bypassing the "smart receptacles" will be a felony, just like bypassing any other utility system meter or control device. Conspiracy theory? Nope... dozens of companies are already producing and testing the products, and draft legislation is already being marked up to give control of your thermostat, and electrical devices to the government. Europe is already rolling out these systems and is scheduled to go live in 2013.
Do you honestly think that a fish tank will be allowed, or that 62" TV set? What happens when the meter decides that you can only watch the 20" set due to your carbon footprint for the month?
You may want to read some of the laws already enacted in Europe and being drafted here. No joke, a government body is going to decide when and what you can power. All new electrical devices will have smart meter compatible addressing in them so that the "smart receptacle, meter, and grid", can identify them and control them when needed.
Just because we have the ability to monitor and control something does not mean that we necessarily should.