Duct Sealing

Aerosol duct sealing calculator screening tool

Estimates the cooling, heating, and combined annual dollar savings that can be achieved by sealing leaks in HVAC ductwork.

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Natural Gas Chillers

Gas cooling screening analysis tool

Provides a rough estimate of the annual cost savings and payback period for a gas-fired chiller relative to a conventional electric compressor-based chiller, based on your cooling load and the electric and gas prices you enter.

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Packaged Rooftop Air Conditioners

Packaged RTU (roof-top unit) efficiency screening tool

Estimates energy and peak demand savings as well as payback period for high-efficiency packaged roof-top air conditioning units.

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Indirect Lighting

Screening tool for indirect lighting

Compares the total installed costs, annual operating and maintenance costs, and cooling costs of up to three direct and indirect lighting strategies. It also estimates a simple payback period for the indirect lighting alternatives.

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HID Versus Fluorescent for High-Bay Lighting

Fluorescent high-bay lighting savings calculator

Estimates the annual energy savings and simple payback period achievable by replacing existing metal halide lamps with fluorescent lamps in high-bay applications.

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Metal Halide Track Lights

Metal Halide Track Lighting Savings Calculator

Estimates the annual energy cost savings and payback periods for metal halide and other energy-efficient alternatives to halogen track lights. It also estimates total costs of ownership for each lighting technology over a 10-year period.

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Personal Dimming Controls

Personal dimming cost-effectiveness calculator

Estimates the bill savings and payback period for a lighting system that permits individuals to adjust fluorescent lighting to their personal preference in an office setting.

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Harmonic Mitigating Transformers

Harmonic mitigating transformer cost-effectiveness evaluation tool

Estimates the annual energy savings and simple payback period for installing a harmonic mitigating transformer versus a conventional distribution transformer.

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Walk-In Cooler Controllers

Evaporator fan controller cost-effectiveness estimator

Estimates the electricity and dollar savings potential and payback period for evaporator fan controllers on walk-in refrigerators and freezers, based on fan power, duty cycle, electric rate, and installed cost information that you provide.

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Gas-Fired Tank Water Heaters

Gas-fired water heater screening tool

Determines the energy consumption and payback periods for standard commercial and ultra-efficient commercial water heaters and compares them with consumption and payback for residential models. By necessity, this screening model makes simplifying assumptions, so use it for initial screening only.

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