ORANGE — United Illuminating and its parent company, AVANGRID, Inc. are offering customers tips to help beat the heat and conserve energy at the same time, according to a UI press release.

A big increase in electrical demand, driven largely by air conditioners, can tax the regional power grid and cost consumers extra money, the release said.

While the regional power grid operator, ISO-New England, has said it anticipates having enough power resources to meet normal summer demand, prolonged high temperatures can put a strain on the grid that would necessitate unusual measures, such as UI asking commercial and industrial customers to suspend operations voluntarily, the release said.