Did you know that the USGBC BuildSMART Trailer at the Ventura Earth Day Eco Fest was powered entirely by non-toxic batteries from Ojai-based Briggs & Stratton? It only took one PHI 3.5 kWh battery to ensure that the USGBC never lost power during the festival. Our battery storage can be charged with any energy source -- solar, wind, grid power or a generator -- and can provide hours of silent, safe, non-toxic electricity.