Energy Capacity Expansion (ECE) module HomeNewPower SystemsEnergy Capacity Expansion (ECE) module Call Us Contact Us About This Equipment The Cat® Energy Capacity Expansion (ECE) module is a scalable, rapidly deployable battery module. The ECE connects to the Energy Time Shift (ETS) module to expand the total system energy capacity. Cat Specs Photos Downloads Technical Summary Application Reserve Power Capacity Module Type Energy Storage Shipping UPC 1518 kWh - 7590 kWh Download Energy Capacity Expansion Download Electric Power Ratings Guide