Truck Refrigeration Units Electric-standby truck refrigeration units (E/S TRUs) can plug in directly into the grid to power refrigerated trailers while parked at docks or loading bays rather than idling the engine to keep the contents cold. CenterPoint Energy offers free assistance to customers interested in E/S TRUs or infrastructure. There are also customer incentives of up to $1,000 per bay available for eligible installations of infrastructure to support E/S TRUs. Contact us if you would like to: Learn more about the benefits of E/S TRUs and infrastructure incentives. Calculate the potential financial and emission savings specific to your operations. Receive assistance with alternative funding opportunities. Connect to local trade allies or equipment dealers. Benefits Reduced Costs E/S TRUs can help reduce idling fuel costs by up to 80%. Less Maintenance Less wear and tear on the diesel engine while idling can also reduce maintenance costs by 15%. Quieter & Safer Operations Reduced noise from idling allows for greater operator awareness and reduced accidents. Zero Site Emissions E/S TRUs reduce greenhouse gas emissions from idling, contributing to a healthier, safer work environment for employees. Cost Analysis The chart below reflects the cost differences between a typical diesel TRU and an E/S TRU. As shown, electric-standby TRUs are significantly more cost-effective to own, potentially saving you over $17,000. Electric-Standby TRU Cost Comparison Estimate* 100% Diesel TRU E/S TRU Initial Capital Costs Equipment Cost $22,000 Infrastructure $4,000 Equipment Cost $24,000 Annual Fuel Costs Fuel Cost per Gallon $2.40 Cost per kWh $0.10 Average Gallons per Hour 0.8 Unit Demand (kW) 11 Hours in Use per Week 30 Hours Plugged-in per Week 30 Annual Gallons Used 1,248 Annual kWh 17,160 Total Annual Fuel Cost $2,995 Electricity Cost $1,716 Annual Maintenance $1,200 Annual Maintenance $500 Annual Savings $1,979 Lifetime Savings (capital costs included) $17,750 *Numbers will vary depending on the capacity and operational habits of the unit.