Assertion: space heater's design | /r/HasSubevent | a surplus of electricity
Facets:
value: during off-peak periods
type: TEMPORAL
value: from base load power stations
type: LOCATION
Source sentences:
text: In some countries, the current design of the electrical generating system may result in a surplus of electricity from base load power stations during off-peak periods, and storage heaters may then be able to make use of this surplus to increase the net efficiency of the system as a whole.