Kilroy has seen a great return on investment with its data management vendor, Gridium, which compiles the weekly emails for Neff. Gridium also uses weather data to anticipate peak demand days, notifying Kilroy to reduce its electrical usage in advance of peak summer periods. The vendor has helped Kilroy save 402,407 kilowatt hours and $77,642 for its San Francisco properties since it started deployment in 2011, giving the project an ROI of 2,157 percent, according to company’s annual sustainability report.