As we begin to see temperatures rise above 90°F this week, a sharp rise in demand on the power grid will lead to increased fossil fuel consumption. The New England power system often sees demand peaking just as solar power production tails off at dusk and it’s still hot. To fill the increased electric demand during these peak periods, the grid must turn on “peaker” power plants. Peaker power plants are often old, dirty, and incredibly expensive to operate. They run primarily on natural gas and oil. Saving electricity during a typical window of 4-8pm, depending on the day’s specific conditions, can help reduce the dirtiest fossil fuel use along the grid.
During the hottest days this week (Tuesday, June 18 through Thursday, June 20), conserve energy from 4-8pm:
- Turn the air conditioner up a few degrees, or off if you can manage. Pro tip: “Pre-cool” in the morning with AC, then use fans in the afternoon (which use much less electricity).
- Avoid running the dishwasher, washer, or dryer.
- Unplug electric vehicles or set their charging timers to start after 8pm.
You can sign up for a “Shave the Peak” alert program through the Green Energy Consumers Alliance to get reminders to save electricity on the high energy demand days.
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