Here, an unlikely underground source generates renewable energy

Portland, Oregon, has set a 20-year goal of generating $2 million worth of power from within its water system.

Parts of the system have been in place since 2015. Portland General Electric (PGE) customers are already drawing electricity from turbines within downward-sloping, 3.5-foot-wide water pipes. The revenue returned to the city offsets a portion of its water system expense.[1]

Drinking water propels the small hydroelectric generators. There is no impact on fish migration or available water supplies. By relying on gravity, the renewable energy continues in all weather and all hours of the day.

News and Notes items accompany the longer articles found in ecoPreserve’s newsletter, Sharing Sustainability. Several issues of the newsletter can be previewed here.

[1] (Oregon Public Broadcasting)

Alexa Stone
LEED AP, Sustainable Facility Professional, Envision Sustainability Professional - - Alexa has more than 25 years of experience in sustainable and Smart Cities development. Her strategic planning work has served local, state, and federal government, higher education, and private industry. Alexa founded ecoPreserve in 2009 as a team of 3 and has grown the company to over a dozen of the brightest sustainability and project management professionals in the industry.
Alexa Stone


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