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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

March 2026

Better Farming Magazine

Farms.com Breaking News

A new front in the repair access debate

Friday, March 13, 2026

Iowa lawmakers have pushed the right‑to‑repair conversation into new territory with House File 2529, a bill that focuses specifically on diesel exhaust fluid (DEF) systems—the single most common cause of emissions-related downtime on modern farm machinery. The bill would require... Read this article online

March 8 is International Women’s Day

Friday, March 6, 2026

Across the United States and Canada, women are taking on increasingly visible roles in agriculture—managing farms, leading ag-tech startups, advancing research, and strengthening the rural economies that feed both nations. Their work reflects a shift in an industry once defined... Read this article online

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