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Politics : Sioux Nation -- Ignore unavailable to you. Want to Upgrade?

To: altair19 who wrote (190834)	5/3/2010 2:32:10 PM
From: Wharf Rat	Respond to of 361855

Solar fan that I am, wind has a better energy return than anything but old oil and hydro. Back in the day of the gushers, oil had a return of 100 barrels for every barrel invested. New oil is much lower. Comparison with other power systems Figure 3: EROI of various electric power generators.The EROI for wind turbines compares favorably with other power generation systems (Figure 3). Baseload coal-fired power generation has an EROI between 5 and 10:1. Nuclear power is probably no greater than 5:1, although there is considerable debate regarding how to calculate its EROI. The EROI for hydropower probably exceed 10, but in most places in the world the most favorable sites have been developed. eoearth.org energybulletin.net