April 8, 2009 – Honeywell introduced electrical submeters, which provide building managers and owners with point-by-point energy usage data that is critical to making data-driven energy-efficiency improvements and accurate cost allocations. Submeters sit downstream from main utility meters and measure kilowatt usage on a more detailed, differentiated level.
Submetering with constant energy usage monitoring also lets building owners and managers gauge the effects of energy-savings measures. It can serve as an analytical tool for energy management, help buildings comply with green building initiatives, and provide energy usage measurement and verification.
Submetering applications
Submetering can benefit building owners and managers in several ways, including:
Tenant submetering, which monitors energy consumption by tenant, allows building owners and managers to accurately bill tenants for consumed electricity, and places the responsibility for controlling energy usage with the tenant.
Cost allocation, which monitors energy usage at multiple points in a building, so owners and managers can divide utility costs based on point-by-point energy use.
Performance monitoring, or measuring energy usage before and after an efficiency upgrade.
Load shedding, which helps building owners and managers avoid costly peak-demand charges by reducing power usage during critical times.
Monitoring main circuits/panels, so building owners and managers can determine where energy is consumed and monitor the performance of equipment to detect trends.
Key features
Honeywell’s comprehensive SUB series family of submeters feature:
LCD display for quick and easy viewing of kilowatts at the installed location.
metal housing unit, which can help meet local codes.
A selection of meters to measure kilowatt hours and other electrical properties with pulse, Modbus RTU, Modbus/TCP or BACnet? options.
Meets ANSI C12.21 (ANSI C12.20 or C12.16) for a rated accuracy 1 percent or better, and can be used for billing where code allows.
“With energy efficiency of critical importance today, submetering is generating strong interest among building owners and managers and contractors,” said Dave Molin, general manager, Honeywell Building Control Systems. “Submeters show you where your electrical dollars go—by department, by piece of equipment, or by tenant. Understanding the ‘where’ and ‘how much’ is absolutely essential to then determining where you can boost energy efficiency or accurately allocate costs.”
Honeywell International is a $37 billion diversified technology and manufacturing leader, serving customers worldwide with aerospace products and services; control technologies for buildings, homes and industry; automotive products; turbochargers; and specialty materials. based in Morris Township, N.J., Honeywell's shares are traded on the New York, London and Chicago Stock Exchanges. Honeywell Environmental & Combustion Control is part of the Honeywell Automation and Control Solutions business group, providing integrated product solutions in heating and heating processes, ventilation, cooling and refrigeration, air filtration, zoning, humidification, air conditioning, water controls and processes, electrical devices and systems, lighting control, buildings controls, switches, sensors and controllers. ECC’s technologies are found in more than 150 million homes, 10 million buildings, and a multitude of manufacturing plants around the world.
