In some cases, the excess power from these company plants can be sold to the national grid.

Excess power not used by the mill is returned to the grid.

The excess power generated is sold to the national grid.

During times of low demand, excess power can be stored in batteries for future use.

And if the owners lived in the summer pavilion three months of the year, they might even be able to sell some excess power.

If the line slaps against the reel you have excess power.

Then Enron would sell the "excess" power to the state at a premium.

When the frequency increases past the standard, they would be more likely to switch on, using up the excess power.

It explains where our excess power is coming from.

Excess power during rough seas could be used to produce hydrogen.