1,554,287,700

lbs of CO₂ abated

Impact: CO2 — We’ve abated enough CO₂ to offset more than 10,000 cross-country flights.

We've abated enough CO₂ to offset all the energy used in a year by the Cayman Islands

We've taken the equivalent of more than 100,000 cars off the road

We've effectively added more than 6,000 acres of rainforest (which could sequester as much CO₂ as we've abated)

Watch our film to find out more about what 1TWh represents

Results

Program Promotion

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...and we play nicely with other utility programs

Reports Boost Other Utility Program Participation
Program Portfolio

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...and we play nicely with other utility programs

Massachusetts Residential Triennial Electric Efficiency Plan

Note: D.P.U. 09-121. Three-Year Energy Efficiency Plan for 2010 through 2012. Commonwealth of Massachusetts Department of Public Utilities. 28 Jan 2010

We use a well-defined, scientific approach to measurement and verification.

Opower’s methodology and results have been independently verified by leading industry analysts and non-profit organizations, including the American Council for an Energy-Efficient Economy (ACEEE), The Brattle Group, Navigant Consulting, Power Systems Engineering, KEMA, Environmental Defense Fund (EDF), as well as by established academics from several leading institutions. Our measurement protocols follow guidelines specified by Public Utility Commissions across the country, and in particular the protocols laid out in the California Public Utility Commission’s Measurement & Verification Guidelines and the EPA’s National Action Plan for Energy Efficiency (NAPEE) guidelines.

Time Comparison
We use baseline data to identify test and control groups with statistically equivalent usage patterns and histories.
Group Comparison
We measure program impact against a group of non-participating homes to control for external factors that may affect energy use.
Replication
We measure energy use across thousands of households, over different spans of time, to increase the statistical precision of our results.

Supporting Library

Social Norms and Energy Conservation

The first evaluation of a scaled behavioral efficiency program to be published in a peer-reviewed journal, authored by Hunt Allcott, Assistant Professor of Economics at New York University.
30 Month SMUD Program Evaluation

Independent verification of results from the first 30 months of Opower's deployment at Sacramento Municipal Utility District by Navigant Consulting. The report shows strong savings sustained over nearly three years.
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