Positive Energy, an Arlington, Va. company that gathers energy usage data for homeowners — distinguishing the most efficient homes — took in $14 million in second-round funding from New Enterprise Associates. Quarterly reports show clients how to save energy and have already produced reductions in energy demand up to 2 percent per household, the company says. It also offers web tools like carbon calculators to help homeowners gain a better understanding of their consumption habits.

Positive Energy raised $1.5 million in a first round of funding last summer from angel investors. New Enterprise Associates has taken a special interest in the cleantech sector as of late, especially in the area of energy efficiency.