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1 ton of coal costs $36 = $0.006 per KWH. 1 barrel of oil costs $70 = $0.05 per KWH. 1 cubic foot of gas $0.008 = $0.03 per KWH. In comparison to solar energy, the hydrocarbon fuel costs are significantly lower without rebates, tax benefits nor the cost of carbon emissions.A twoâKilowatt (KW) solar energy system costs about $45,000 and covers roughly half of a typical American householdâs energy needs.verage solar energy system costs = $8.95 per watt. In order to compare the solar energy costs to conventional hydrocarbon fuels, we must covert the $8.95 per into KWH. Letâs make two calculations to measure the total electric energy output over the lifespan of the solar energy system.
The price of a kWh of electricity in eastern Muskoka, where my cottage is, is 29.5 cents per kWh (based on 945 kWh used over three months last summer; total owing was $279.49).ix months ago, I was paying $1.30 per litreâ14.6 cents. (To determine the cost of a kWh of gasoline energy, divide the per-litre price by 8.9 kWh.). Natural gas (a.k.a methane) . In Canada, natural gas is sold at the retail level by the cubic meter. A cubic meter of natural gas contains roughly 10 kWh of energy.