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Articles by Gar Lipow

Gar Lipow, a long-time environmental activist and journalist with a strong technical background, has spent years immersed in the subject of efficiency and renewable energy. His new book Solving the Climate Crisis will be published by Praeger Press in Spring 2012. Check out his online reference book compiling information on technology available today.

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  • We can do more than he calls for, but I would settle for Gore’s objective

    Everyone is talking about Gore's proposal to decarbonize electricity over the course of 10 years.

    Without considering transmission and storage losses, Gore's estimate of $1.5 to 3 trillion would require capital costs of under 37 to 74 cents per annual kWh. Taking those losses into consideration, cost would have to be more in the 28 to 56 cents per kWh range. (Note again these are not cost per watt of capacity. These are costs per annual kWh. They are levelized costs translated into capital numbers.) Jon Rynn and I have a worksheet in process on costs to 95 percent decarbonize economy, rather than 100 percent decarbonizing the grid. But it does include 99 percent decarbonizing the Grid, including a 30 percent redundancy to handle annual variations. The bottom price with the most aggressive improvements we looked at came to 66 cents per annual kWh. That comes out to $3.54 trillion, about $540 billion more than Gore budgets. But because biomass has proven so devastating ecologically, and so disastrous to the poor we assume very little use of biomass. Also we phase out nuclear as well as fossil fuels, something I'm pretty sure Gore does not. More nuclear and biomass not only reduce the amount electricity that needs to be generated, but it also reduces the need for storage losses. So Gore's plan does pencil out at the high end with 100 percent fossil-fuel free electricity at under $3 trillion.

    If you follow our plan you would probably see the grid more like 90 percent decarbonized in first 10 years. But you would also see 85 percent of truck freight shifted to mostly electrified trains, construction of light rail, and massive reductions of emissions in residences, commercial buildings, and industrial use. So we reduce emissions by more than Gore's proposal, and reduce oil use significantly too, something Gore's plan would not do. So not only is Gore's plan feasible over a 10 year period, much greater reductions are feasible than Gore calls for over a 10 year period. Gore remains, as he as always has been, a mainstream centrist. That so much of the environmental community and netroots chooses to back away from it as "almost feasible" or "a moonshot," that is, as too radical, says something about their timidity.

  • RoofKrete makes thin flexible ferrocement that is also vapor barrier

    I recently stumbled across a green builders' discussion of a product called RoofKrete, which claims to be a form of semi-flexible ferrocement that can be sturdy and self-supporting in shells as thin as a quarter inch. An additive to the cement makes it a vapor barrier as well, rated to last over 100 years and expected to last much longer than that.

    The obvious use for RoofKrete, and the major market at which it is currently aimed, is repairing failed flat roofs and constructing long-lasting, low maintenance new ones. But the reason it caught my eye was the potential for green buildings.

  • Plasma TVs and solar cells not so bad after all

    A recent Grist article shared a bit in some of the panic about NF3 and plasma TVs. If all the NF3 manufactured were released, it warns, it would have a warming effect equivalent to that of Austria.

    It turns out that is mighty big "if," one that Eli Rabett manages to blast into smithereens.

  • Clean Air Interstate rule struck down because it devalues sulfur trading permits

    The court decision striking down the Clean Air Interstate Rule, a major loss for clean environmentalists, can be traced directly to the sulfur trading program often (mistakenly) considered an example of the success of trading over other forms of regulation. Because the new permitting process would have overwritten existing permits, the electric utility industry was able to successfully argue that these regulations would have resulted in economic damage.

    You won't find this in the New York Times article itself but in the mp3 of a background interview in a sidebar of the NYT online story. Although the court was careful not to say so directly, in essence this was a "takings" argument. [Update] (In response to comments, I don't think I successfully make a case that this is a movement towards takings. I'll return to the subject of at a later date. But the main point of this post is that undermining the value of permits is one basis for this ruling - and they do say that right in the ruling (linked in a an early comment.)) The court ruled that that the EPA was not allowed to devalue certain acid rain permits. This is a damn good reason not to turn pollution into property rights (or pseudo property rights in the first place.

    And thanks to Brian Tokar for his email -- sent to a list I'm on -- that pointed this out.