Domain 04
Facilities & Energy
Find and size energy savings across compressed air, motors, pumps, HVAC, chillers, boilers, lighting, solar and demand charges.
Standards referenced: ISO 41001 · ISO 50001
Calculators
Energy Savings & CO₂ Calculator
Translate an efficiency improvement into dollars and carbon.
CalculatorSpace Utilization Calculator
Occupancy efficiency and the cost of vacant facility space.
CalculatorCompressed Air Leak Cost Calculator
Turn CFM of leaks into wasted dollars, kWh and CO₂ — compressed air is the most expensive utility.
CalculatorPump Power & Energy Calculator
Hydraulic, shaft and motor power plus annual running cost — pump-software math, free.
CalculatorMotor Efficiency Upgrade Savings
Energy and payback from a premium-efficiency (IE3/IE4) motor — free energy-audit math.
CalculatorVFD Energy Savings (Affinity Laws)
Slow a pump or fan and energy drops with the cube of speed — the VFD business case, free.
CalculatorLED Lighting Retrofit Savings
Swap to LED and watch the kWh fall — annual savings, CO₂ and payback, free.
CalculatorChiller Efficiency Calculator (kW/ton)
kW/ton, COP and EER for your chiller — and what the energy actually costs, free.
CalculatorBoiler Efficiency & Fuel Cost
What your boiler's efficiency really costs in fuel — and the savings from improving it.
CalculatorSteam Trap Loss Calculator
A failed-open steam trap quietly vents money — see the annual steam and dollars lost.
CalculatorHVAC Cooling Load Calculator
Quick cooling-load estimate in tons and kW — size the unit before you spec it.
CalculatorSolar Payback & ROI Calculator
Net cost after tax credit, simple payback, 25-year savings, NPV and LCOE for a commercial PV system.
CalculatorPower Factor Correction Calculator
kVAR of capacitors to go from your present power factor to target — and the demand-charge savings.
CalculatorDemand Charge Savings Calculator
What shaving peak kW saves on the demand portion of your electricity bill, plus energy cost.
Document generators
Guides
Industrial Energy Audit: Cost, Process & Savings
Factory-floor guide to the industrial energy audit: ASHRAE levels, ISO 50001, energy audit cost ranges, savings benchmarks, and free calculators.
GuideMotor Efficiency: IE3 vs IE4, NEMA Premium & ROI
Compare IE3, IE4 and NEMA Premium motors, calculate energy savings and payback, and learn when premium efficiency motors actually pay for themselves.
GuideDemand Charges Explained: Cut Your Electric Bill
What demand charges are, how peak demand is metered, and 7 proven ways to reduce them: peak shaving, power factor, VFDs, with formulas and real savings.
GuideCommercial Solar Cost, ROI & Payback in 2026
What commercial solar panels cost in 2026, how the 30% ITC and bonus depreciation cut the bill, and how to model a realistic solar ROI and payback period.
Energy management tools
Formulas and units are shown on each tool. Data stays in your browser.
Role guides: Energy manager · Utilities engineer
GHG inventory, Scope 1 and 2
List fuels burned on site (Scope 1) and purchased electricity or heat (Scope 2), each with its emission factor, and get tonnes of CO2e by scope and by source.
CalculatorEnergy use and cost per unit of output
Add each energy carrier for the month with its quantity in kWh and its cost, and get energy and cost per unit produced, the share of each carrier and the average price.
CalculatorLoad profile: peak, base load and load factor
Paste interval demand readings from your meter or logger and see energy, average and peak demand, base load and load factor.
CalculatorWater consumption and intensity tracker
Enter monthly water use and output, and see total use, water per unit and the change from the first months to the last.
CalculatorEnergy project register with measured savings
For each project enter the expected and the measured savings and see how much of the promise was realised, in kWh and money.
ChecklistEnergy audit walk-through checklist
A walk-through of the main energy users: data, electrical, compressed air, steam and heat, HVAC and lighting, and controls.
ChecklistEnergy policy and objectives check
Check that the energy policy is signed and known, and that each objective has a target, a baseline, an owner and a plan.
ChecklistEnergy team charter check
Set up or review the energy team: sponsor, members from each area, roles, meeting rhythm and reporting.