New Mexico ranks tenth among US states in the number of solar-powered houses, reflecting residents' receptivity to solar-based energy, the Oakland, California-based company says.

Vermont is experiencing above-average electricity rates; a streamlined permitting process for rooftop solar; and a new policy increasing the net metering cap from 4% to 15% of a utility's peak load that enables solar customers to receive more credit for energy they send back to the grid.

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