## ENERGY STAR®—saving time, energy and money

The ENERGY STAR Initiative makes green procurement easier in a number of ways. (See a full description at Making the business case.)

One of the most useful is the ENERGY STAR Simple Savings Calculator. This downloadable tool lets you compare as many as three ENERGY STAR certified models against a conventional model of the same product type.

As the examples for furnaces in the tables below illustrate, you can calculate:

• energy savings
• operating cost savings
• simple payback on investment
• greenhouse gas (GHG) emission reductions
• annual and product lifetime savings

The add-on ENERGY STAR Summary Calculator allows you to figure comparisons for a number of different product types in one spreadsheet.

Note: These ENERGY STAR calculators generate estimates of energy, cost and emissions savings using base energy prices and other factors that are developed from Government of Canada data and energy rates posted by provincial and territorial utilities. National average energy costs are calculated and used as the calculators’ default settings. Users can localize the settings by selecting a province or territory, or inputting their own data. All values are updated regularly.

See examples of cost savings for gas furnaces and oil furnaces below.

Cost-Savings Example—200 Gas Furnaces (18 year life)

Equipment
ENERGY STAR
(with AFUE = 95%)
Non-ENERGY STAR
(with AFUE = 90%)
Energy consumption (GJ) 20,557 370,027 23,208 417,737
Energy cost
(@ \$ 6.12/GJ)
\$125,799 \$1,178,974 \$142,019 \$1,330,987
Maintenance cost \$0 \$0 \$0 \$0
Total operating cost \$125,799 \$1,178,974 \$142,019 \$1,330,987
Incremental cost   \$60,000
Total life-cycle cost   \$1,238,974   \$1,330,987
Total energy savings (GJ) 2,651 47,710
Total energy and maintenance cost savings \$16,220 \$152,013
Emissions savings
(kg CO2)
131,835 2,373,028
Payback period 3.7 years (based on incremental cost of \$300 per ENERGY STAR certified unit)

Note: the ENERGY STAR Simple Savings Calculator does not yet include furnace fan efficiency or air leakage

Cost-Savings Example—200 Oil Furnaces (18 year life)

Equipment
ENERGY STAR
(with AFUE = 85%)
Non-ENERGY STAR
(with AFUE = 78%)
Energy consumption (GJ) 30,634 551,413 35,704 642,673
Energy cost
(@ \$ 1.07/L)
\$844,756 \$7,916,955 \$984,564 \$9,227,221
Maintenance cost \$0 \$0 \$0 \$0
Total operating cost \$844,756 \$7,916,955 \$984,564 \$9,227,221
Incremental cost   \$120,000
Total life-cycle cost   \$8,036,955   \$9,227,221
Total energy savings (GJ) 5,070 91,260
Total energy and maintenance cost savings \$139,808 \$1,310,265
Emissions savings
(kg CO2)
358,490 6,452,813
Payback period 0.9 years (based on incremental cost of \$600 per ENERGY STAR certified unit)

Note: the ENERGY STAR Simple Savings Calculator does not yet include furnace fan efficiency or air leakage

Product specification summary

The ENERGY STAR name and symbol are administered and promoted in Canada by Natural Resources Canada and are registered in Canada by the United States Environmental Protection Agency.