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Rob Freda

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In a rigorous analysis is this "missing link" a solution or evidence of a much larger and systemic policy, market, and investment problem?

While Prof. Sadowy is correct on energy issues, his “the missing link” conclusion lacks perspective and highlights a larger problem in clean energy.

The Yardstick

“Missing link” technology has to have specific performance (other technologies have these) and cost. The most central feature for a "missing link's" is -

The combined system cost per kWh must net out lower than today’s renewables to have value.

This battery’s cost is 1/3 "the best battery technology" (MIT). AGM batteries are ~$250 per kWh of storage. Renewable output needs to be leveled (store when producing a lot, supply when not) to behave like fossil. Wind requires 3-5 days of leveling storage equal to 50% of rated capacity (the turbine’s max output) (LBNL).

Storage for 1MW wind turbine = 3 x 24 x 500kW x $80 = $2,880,000

1MW turbine cost = $1,800,000

Wind subsidy is ~$.026 per kWh to equal Natural Gas at $.065 per kWh

Combined wind/storage cost = $.15 per kWh, Subsidy raw = ~$.085 per kWh, Subsidy w/externals = ~$.05 per kWh

The effect of subsidizing a large percentage of global consumption at current rates is severe (see Edenhoffer’s ADAM) on the order of a 2% global economic contraction per year. More expensive renewable energy that behaves like fossil is not a solution.

The Larger Problem

As long as governments are subsidizing (driving private investment) energy technologies that are highly unlikely to solve our core energy problems, our problems will not be solved because we frittered away the money to solve them. The last 30 years provide a snapshot of this problem.

The US has funded and subsidized incremental storage, solar, and wind technologies for 30 years at a cost of tens of billions of dollars without producing anything that can or is on track to actually compete with fossil. If we continue to lack rigor in clean energy policy and investment and to invest large sums without vision, the future for climate change and/or our standard of living looks very dark.

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  • Jan 21 2013: To stephen williams: this thread is kind of hard to handle. All I wanted to do was edit my reply to you.

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