Reader Responses to Power Workout
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Send feedbackElina Pippa’s cardio equipment that generates electricity is cute, but her Climate Solutions class shouldn’t mistake it for a solution. If she makes 3 kilowatt-hours per year, as the article says, that’s 40 cents’ worth, at retail. Average per-person residential electricity consumption per year is 4,500 kilowatt-hours, or 1,500 times what she makes. It’s an even smaller fraction of electricity if we count office, factory, or retail use. The treadmill is good for the body but doesn’t do much for the planet. That requires bulk sources of clean energy like nuclear, wind, and solar
Matthew L. Wald ’76 Chevy Chase, Md.
