Part A

A $31\%-$efficient electric power plant produces $900MW$ of

electric power and discharges waste heat into $20C$ ocean water.

Suppose the waste heat could be used to heat homes during the

winter instead of being discharged into the ocean. A typical

American house requires an average $20kW$ for heating.

How many homes could be heated with the waste heat of this one power plant?

Express your answer as the number of homes.

$N=$

homes