In his deliberations, Wang bore in mind that hydraulic power requires no fuel and causes no air pollution. But its disadvantages are that it costs too much, covers too wide an area and is greatly influenced by water level, rainfall and terrain.
現年四十二歲的地熱發電專家王大蔚認為，水力發電的優點是不需燃料，也無汙染顧慮，但缺點是造價高、佔地廣，又受水位、雨量、地形限制，發電利用率不夠大。