Endless Energy, Ecotricity, Calder Stewart

This innovative Reverse 144 solar project unlocks new energy potential from industrial rooftops. By retaining roof rights on client-built buildings, Calder Stewart partnered with Endless Energy and Ecotricity to transform these underutilized spaces into solar farms. Rather than supplying energy to tenants, we bypass their meters and install independent metering to export electricity directly to the grid. This model enables scalable renewable generation without disrupting tenancy arrangements, turning passive infrastructure into active contributors to New Zealand's clean energy future. Reverse 144 is a replicable, future-focused solution aligning commercial construction with national decarbonization goals.