Here is a sampling of what home electricity might look like in the year 2020.
Roof shingles made of light-sensitive materials make electricity to help power the home. Twenty percent or even more of electricity sent by the local utility will be from renewable sources, such as wind or solar power.
Many homes will be equipped with “net metering,” which means that if you generate more electricity than you can use (from solar cells, say), it can be sent out and added to the general grid.
One of the main goals of an automated smart grid for the home is for appliances to know when to operate. For example, with a single small microchip a dishwasher will start up in the middle of the night, when the cost of electricity is much lower than in the late afternoon.