Smart Power

ajnsue writes "How would you like to control your homes power consumption at the level of the appliance - About 300 Washington State and Oregon Power users are now testing software and devices that allow them to actively control their household power consumption based on the price of power. From the article... "...(Using)real-time price information (provided) through a broadband Internet connection and automated equipment that will adjust energy use based on price. In addition, some customers will have computer chips embedded in their dryers and water heaters that can sense when the power transmission system is under stress and automatically turn off certain functions briefly until the grid can be stabilized by power operators." This technology also provides beneift to the provider network "...The Grid Friendly TM Appliance Controller chip could help prevent widespread power outages by turning off certain parts of an appliance when it senses instability in the grid - something that happens about once a day on average. Shutting down the heating element for a few minutes, while the drum continues to tumble, would likely go unnoticed by the homeowner but drastically reduces power demand within the home...""

Comments

Dynamic Demand

[bjpirt]

A friend of mine is working on a similar system here in the UK. Have a look at his website for more information.

It is a really elegant solution to the problem of grid instability. I love the idea that by measuring the frequency of the grid you can tell whether there is a surplus or deficit of power and then decide to either cool the fridge further or wait until there is a surplus (or until the temperature drops to it's lowest limit). This way you could treat all of the fridges in the country as a massive battery, using the surplus power so they don't need it when there is a deficit.

One of the big benefits is to make it easier for energy sources with an unpredictable output to be integrated into the grid, such as renewables. It also avoids having to turn on extra turbines when there is a grid emergency, saving lots of CO2.