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Better Farming Ontario Featured Articles

Better Farming Ontario magazine is published 11 times per year. After each edition is published, we share featured articles online.


Electric power from potatoes

Monday, February 28, 2011

Slices of freshly cooked potatoes can provide electricity for remote, off-grid communities, says a research team at the University of Jerusalem. A slice of potato can generate light for 20 hours, and several slices could power simple medical equipment, or even a low-powered computer.

The work was described last year in the Journal of Renewable and Sustainable Energy and hinges on a recent discovery that electricity flows from membranes disrupted by boiling. Potato batteries are estimated to generate electricity at a cost of about US$9 per kilowatt hour, about the same cost as AA alkaline batteries. D cells generate electricity for about $50/kWh.

Expect to see another debate about "food or energy" to develop. The "antis" argue that these "food batteries" would be grown and used in areas of Africa where food may already be in short supply. Proponents, on the other hand, say many potatoes can't be moved to city markets in time to prevent them from rotting. BF
 

Current Issue

November 2026

Better Farming Magazine

Farms.com Breaking News

Upcoming winter Ontario farm shows

Thursday, November 12, 2026

As Ontario producers continue the 2026 harvest, lessons from the season that was, and preparation for 2027 begins with the winter farm show circuit. Here are some of the shows farmers can attend in the next few months. The Advancing Women in Agriculture Conference East takes place Nov.... Read this article online

Hensall Co-op Awards $17,500 to Seven Ontario Students

Tuesday, November 10, 2026

Seven post-secondary students are receiving financial support from Hensall Co-op as they pursue education connected to agriculture and the future of rural communities. The Ontario farmer-owned co-operative has announced the 2026 recipients of its Bright Futures Scholarships, with each... Read this article online

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