This kind of heater can shift electricity from peak periods to off peak periods, thus it can increase the using time of generators.

因此该蓄热电暖器可以实现电网用电负荷削峰填谷，提高发电设备利用率；

youdao

Tourism is at middle-of-the-road levels: less than the crowds during peak periods, but more than when visitation drops off during low/off season.

在这个时期，旅游业一般处于中间状态：游客人数少于旺季，但又多余淡季。

youdao

Telephone charges are lower during off-peak periods.

在非繁忙时，电话收费较低。

youdao

Drivers have been assured any work will be confined to off-peak periods between 09:30 GMT and 14:30 GMT.

BBC: Investigation into flood-hit A595 in Cumbria

Only about 20% of that capacity is generally available during peak demand periods (about 5:00pm), while average generation during off-peak time averages about 40% of capacity.

FORBES: Wind Energy's Overblown Prospects