The community-owned Sacramento Municipal Utility District (SMUD) invests 40 percent of the power bill paid by those using renewable energy into similar "green" projects.
CNN: Solar power takes root in California
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SMUD's solar energy program is particularly popular, with solar panels equipped with photovoltaic cells turning hundreds of area homes and businesses into mini-power plants.
CNN: Solar power takes root in California
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"What we're trying to do is to get housing developers to install these cells as part of the house itself as they build it, " said SMUD's Colin Taylor.