志愿者的无偿服务，对医院来说，是实实在在的“成本利器”。虽然具体财务数据未公开，但我们可以通过服务时间，大致算出它的价值：
This month Ofgem, the UK's energy market regulator, said a surge in demand for grid connections last year had been "driven by the rapid growth" of data centres.，更多细节参见夫子
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