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Energy

• Energy

  A Mighty Wind

  10.18.06 | Permalink | 9 Comments

  And I’m not talking about the movie of the same title… Do you know how much a cubic meter of dry air weighs at sea level? About 1kg (1.0007 kg to be exact.) Air also has pressure, at sea level, about 10,194 kg/square meter (14.5 lbs/square inch.) Air also moves, you might have noticed this […]

• Energy

  What is renewable energy?

  10.17.06 | Permalink | Comments Off on What is renewable energy?

  That’s a question I’ve gotten routinely. Here’s the “official” definition from the US Government used to purchase renewable energy: Executive Order 13323: Renewable energy is energy produced from biomass, geothermal, solar, and wind sources. Practically speaking, renewable energy is energy whose source is not destroyed when harnessed. The principal renewable energy sources in use today […]

• Energy

  What is the best homeland security?

  10.16.06 | Permalink | Comments Off on What is the best homeland security?

  Energy independence. It’s that simple. Every $ sent to foreign entities (and perhaps some domestic entities with international interests) provides a small bit of leverage in the way we project ourselves as a nation on the globe. As George Washington stated in 1796, “Nations have interests, not friends.” Those $ sent offshore do little to […]

• Energy

  What is the environmental cost of a MWh?

  10.12.06 | Permalink | 1 Comment

  In previous entries we’ve discussed how much electricity the US is producing and consuming, what the sources of generation are, and how much it costs from a monetary perspective. But there are other costs. This entry will focus on the largest fuel source for electricity generation, coal. This is an ancient source that is well […]

• Energy

  Fossil fuel costs for electric generation

  10.10.06 | Permalink | 1 Comment

  Data based on Electric Power Monthly Report As you can see from the graph above, fuel prices have increased rather dramatically for petroleum and natural gas over the past 6 years. It is worth noting that the 2000 numbers are actual average prices (A) and the 2006 numbers are a trailing twelve month average (TTM.) […]

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