# ETS Costs to Operate

Operating costs are estimated using the following assumptions:

• Units charge for an average of 4.5 hours per day
• Average monthly billing cycle equals 30 days
• House meets Act 222 insulation standards
• Rate for energy used by ETS units is \$.062/kWh (assumed - please call office for current rates.)
• Units charge only during off-peak hours

### Average Monthly Costs Per Unit Size

• #### 2 KW ETS unit

2 KW x 4.5 hr x 30 days = 270 kwh/month
270 kwh/month x \$.062/kwh = \$16.74/month

• #### 3 KW ETS unit

3 KW x 4.5 hr x 30 days = 405 kwh/month
405 kwh/month x \$.062/kwh = \$25.11/month

• #### 4 KW ETS unit

4 KW x 4.5hr x 30 days =540 kwh/month
540 kwh/month x \$.062/kwh = \$33.48/month

• #### 5 KW ETS unit

5 KW x 4.5 hr x 30 days = 675 kwh/month
675 kwh/month x \$.062/kwh = \$41.85/month

• #### 6 KW ETS unit

6 KW x 4.5 hr x 30 days = 810 kwh/month
810 kwh/month x \$.062/kwh = \$50.22/month

Most members install an average of 10 KW of ETS to start.
Additional units can be purchased at a later date as "add-ons" to the original system.

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