Dry steam, the oldest geothermal technology, takes steam out of fractures in the ground and USES it to directly drive a turbine.
干蒸汽发电是最古老的地热利用技术,从地面断层开采出蒸汽并直接用于驱动汽轮机。
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Ditkof said, "Very shallow magma chambers mean there is a very shallow geothermal heat source that could be tapped, " for example to generate steam to power turbines in electrical plants, she said.
The Basel project targeted a particularly sensitive seismic area, and drilled in the middle of a city because of plans to divert steam for heating buildings, another use of geothermal energy.