(Courtesy CIA.gov) |
The largest obstacle is the cost. Drilling for geothermals is extremely expensive: 1000 Euro per metre. According to calculations by Energie Centrum Nederland (ECN) and KEMA one kilowatt-hour from geothermal sources costs almost 20 cents. This is four times as much as electricity generated by coal.
This price is also only obtainable if the residual heat can be used for heating houses, greenhouses or as an energy source for the industry. This can't be done everywhere in Holland. Nonetheless the ECN thinks that the price can be brought down in the long term to 5 to 10 cents per kilowatt-hour.