The refrigeration engine room in a food processing facility may use approximately 30 to 70 per cent of the total electrical usage for the entire facility. This percentage increases for cold storage distribution centres. Typical electrical energy savings are 20 to 30 per cent of the refrigeration energy use. This results in potential electrical savings for the entire facility.
Manitoba Hydro uses a systems approach which takes into account all the elements from the point where the power is supplied to the motor to the point where process work is done. Depending on the application, savings may be realized in the end uses, distribution system, equipment or controls portions of the system.
Manitoba Hydro provides the following services:
Review of energy consumption and demand and assist in calculating an energy index.
Site visit followed up with a letter listing some potential energy saving measures.
Loggers will be installed on specific system components to record current, temperatures and pressures. A report will be issued with estimated electrical savings and incentive monies.
A detailed audit will be performed on the entire refrigeration system. There is a fee for this service but a portion of the cost may be offset by an incentive from the Performance Optimization Program.
The industrial refrigeration program is focused on customers with large ammonia refrigeration systems. Refrigeration systems are very dynamic and complex systems. Making a small change to one component of the system may negatively affect numerous other components. A measure may save electrical energy consumption at one component but the overall system may consume more power. In turn, a system with very efficient components may still be very inefficient. Thus, it is important to have a professional engineer or qualified contractor review all recommendations prior to implementation.
For more information, contact your Energy Services Advisor at 204-360-4698.