Green Mountain Geothermal logo at Vermont Geothermal

Geothermal Consulting and Contracting  |  Email James
Phone (802) 684-3491  |  PO Box 222  |  West Danville, Vermont 05873

Operating Costs

So, how much will it cost me to operate a geothermal system?

Comparing The Cost of Heating Fuels (see below) will show that heating with a petroleum product or electricity will cost approximately $40.00 for a million BTUs. Geothermal will cost anywhere from one third to one quarter of this amount. A few well designed systems might even cost only one fifth the cost of electric or oil heating. What about the cost of operation in a few years, like in 2020? Well, it is anyone’s guess, but Green Mountain Geothermal has put forward our own projection based on some recent past history and the simple fact that petroleum is a limited resource with a rapidly increasing consumer base. If the price of oil increases 8% per year, it will cost $10 per gallon by 2020. If electricity increases at 4% per year, then it will cost $ .22 per KWH in 2020. Hopefully, increasing generating capacity in Vermont will temper any increase.

What will it cost to heat my house? That all depends on how many million BTUs you need per year. The better insulated your house, the lower your heat load and the lower your annual cost will be. In fact better insulating your house may even reduce the size and cost of the geothermal equipment we need to install. If you have an existing house, you can do your part by getting an energy audit, and investing in energy conservation.

It is the goal of Green Mountain Geothermal to provide its customers with the most efficient geothermal system possible. In most cases we recommend ClimateMaster geothermal equipment coupled with a Standing Column Well (SCW). A properly constructed SCW can furnish not only the highest input temperature throughout the heating season, it can also be used as the domestic water supply for the house.

Comparing the Cost of Heating Fuels 2015

December 2015 Comparative cost of heating fuels: oil, kerosene, propane, natural gas, electricity, geothermal, wood, coal and pellets

Download the chart pdf for a closer look. Note that it now includes high efficiency fuel oil and propane which the Department of Public Service has started reporting, along with Air to Air Heat Pumps.

Based on the Vermont Public Service Department’s Vermont Fuel Price Reports

Comparing the Cost of Heating Fuels 2014

January 2014 Comparative cost of heating fuels: oil, kerosene, propane, natural gas, electricity, geothermal, wood, coal and pellets

2013 vs 2014 Comparative cost of heating fuels per 1 million BTU

Based on the Vermont Department of Public Service’s Fuel Price Report,
available at: http://publicservice.vermont.gov/publications/fuel_report

Comparing the Cost of Heating Fuels 2013

The chart below reflects reported heating fuel costs from January 2003 through January 2013. You may also download a .pdf for a closer look at the data. What is clear from the historical comparison is that propane and fuel oil have seen steady price increases and volatility.

March 2011 Comparative cost of heating fuels: oil, kerosene, propane, natural gas, electricity, geothermal, wood, coal and pellets

2010 vs 2011 Comparative cost of heating fuels per 1 million BTU

Based on the Vermont Department of Public Service’s Fuel Price Report,
available at: http://publicservice.vermont.gov/publications/fuel_report

Sept 2010 Comparative cost of heating fuels: oil, kerosene, propane, natural gas, electricity, geothermal, wood, coal and pellets

2009 vs 2010 Comparative cost of heating fuels per 1 million BTU

Based on the Vermont Department of Public Service’s Fuel Price Report,
available at: http://publicservice.vermont.gov/pub/vt-fuel-price-report.html