HOLYOKE, Mass. (AP) — New England’s electric grid operator says last week’s stretch of excessive heat and humidity pushed weekend power use to an eight-year high.

ISO-New England said Monday that preliminary data show that 24,653 megawatts were used on Saturday, a record for a weekend day. The previous record was 24,065 megawatts on Aug. 13, 2005.

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On Friday, demand was fourth-highest, with demand for 27,377 megawatts.

The record for electricity use was 28,130 megawatts on Aug. 2, 2006.

Spokeswoman Marcia Blomberg said ISO-New England asked businesses on Friday to reduce power to help cut demand. Businesses that agree in advance to cut electricity do so when requested by the Holyoke-based power grid operator.

The call for power reduction is rare. Blomberg said companies were asked in January, but were never called on last year.