Climate Technology

Taking care of rural coal workers

This WSJ piece on the battle over coal in rural (and important electoral swing) states is frustrating. On one hand, you have enviros, characterized as urbanites concerned exclusively with global warming. On the other hand, you have rural residents, characterized as concerned exclusively with keeping their mining jobs. Why is there no mention of the […]

Ausra

Via Deathridesahorse, here’s a video of Ausra (“utility-scale solar power”) CEO David Mills explaining Ausra’s solar thermal technology:

A long-term extension of the solar investment tax credit is vital

Joe is correct to point out that solar energy is not a monolith -- but he's got the categories wrong. The relevant division is not between technologies but markets.

Market No. 1 is distributed generation solar -- that is, solar sited on the customer side of the meter, serving on-site load. Think rooftops. This market will be served almost exclusively by photovoltaics (for electricity -- hot water is another case) -- and the relevant cost comparison is the retail price of electricity, not wholesale generation values.

Market No. 2 is utility-scale solar -- that is, central station generation for wholesale power. Think big plants in the desert that sell electricity to utilities for further distribution and sale to their customers. The relevant cost comparison is the future price of non-renewable alternatives, such as coal. This market will be served by many different technologies, including solar thermal electric (from parabolic troughs to power towers) to concentrated photovoltaic to dish Stirling engines to thin film solar of various flavors.

Coca-Cola and McD’s top brands among teens, study says

Photo: Taneli Mielikäinen There has been a lot of great work in the last decade to wake kids up to alternatives to industrial food. Here and there, farm-to-school programs have been launched, soft drinks banished from cafeterias, books like Eric Schlosser’s Chew on This have emerged. Yet clearly, much more work needs to be done. […]

Succeeding in the free market

One of my favorite writers, Jonathan Chait, has an article in The New Republic on “the latest in global warming denialism” (the latest being acknowledging it exists but refusing to do anything about it). It mostly goes over familiar ground, but I wanted to call out one part where Chait makes an unwarranted concession. Discussing […]

Cheap clean coal now dirty, expensive

The WSJ energy blog points out that skyrocketing demand for coal in the developing world is rapidly driving up the commodity price. (And WSJ proper points out that rising prices for coal mean rising prices for steel.) Meanwhile, Reuters says “clean coal” is “elusive” and the head of one of Australia’s biggest energy companies — […]

MoJo uncovers the eco-spies

Mother Jones has a blockbuster scoop today on the private security firm that spied on green groups on behalf of corporate clients: A private security company organized and managed by former Secret Service officers spied on Greenpeace and other environmental organizations from the late 1990s through at least 2000, pilfering documents from trash bins, attempting […]

World Bank should get out of carbon-offset market, says report

Carbon-offset dealings by the World Bank have been criticized (and not for the first time) in a report released Thursday by the Institute for Policy Studies. In the past two years, the report charges, the bank has loaned $1.5 billion to fossil-fuel companies to make minor greenhouse-gas reductions. It then sells carbon credits for those […]

Concentrated solar power is already doing great; no breakthroughs needed

Almost certainly not and absolutely not. I give two answers here because there are two very different types of solar energy:

1. Solar photovoltaics, PV, which is direct conversion of sunlight to electricity. It is well known, high-tech, uneconomically expensive in most parts of this country (but poised to resume dropping sharply in price), and intermittent (power only when the sun shines).
   
2. Solar thermal electric or concentrated solar power (CSP), which uses mirrors to focus sunlight to heat a fluid to run a turbine or engine to make electricity. It is, as I've blogged, "The solar power you don't hear about." It is relatively low-tech, competitive today (and poised to drop sharply in price), and can be made load-following (matching the demand curve during the day and evening) and possibly baseload (round-the-clock).

Absent major subsidies, solar PV is simply not a big-time winner (in terms of kWh delivered cost-effectively) in rich countries with built-out electric grids in the near term. It is, however, a big winner in the medium-term (post-2020). I don't agree with the Scientific American article that calls for a massive $400 billion 40-year plan for solar. I have been meaning to blog that it has many weaknesses, in my mind. No energy efficiency. No wind. Heck, nothing but PV and CSP, and it looks to be mostly PV, which needs expensive storage.

Why plowing up Conservation Reserve Program land won’t solve the food crisis

Uh oh. The New York Times reports that “thousands of farmers are taking their fields out of the government’s biggest conservation program, which pays them not to cultivate.” Rather then let the ground lie fallow, they’re planting it with corn, soy, and wheat — the price of each of which stands near or above all-time […]