Archive for July, 2008

Scare du Jour Redux

Sunday, July 27th, 2008

Back in June, I wrote a blog entitled “The Scare-du-Jour” discussing the latest big food scare in the U.S., i.e., an FDA (Food and Drug Administration) dire warning that eating tomatoes probably is the cause of Salmonella poisoning in what has now been guessed to be over 1,200 people all over the country over a period of (so far) a couple of months. That’s somewhere around 20 people a day in a country of 300 million. So naturally grocery stores and restaurants all over the country stopped selling and serving tomatoes. Tomato growers in California have lost upwards of $200 million since the first warnings.

But WAIT!! Our FDA scientists and regulators have decided that California tomatoes were never a danger after all, but tomatoes from Texas or New Jersey.

NO, WAIT! it’s not tomatoes at all, but maybe perhaps chili pepers!! Oops, now our brilliant FDA guys say maybe perhaps it’s only chilis grown in Mexico, so don’t eat salsa. How much money have owners of Mexican restaurants lost as a result? One FDA investigator was quoted as saying, “You hate to hurt an industry and cause 100 million in damage. On the other hand, I don’t think any of us could sleep if we didn’t say something and then a kid died the next day” (I hope he loses sleep from eating salsa).  I know that most parents feed their babies hot salsa instead of baby formula, so that statement makes SO much sense, doesn’t it?

Healthy people who eat solid food don’t die from Salmonella, they get sick for a night. And, after having diarrhea all night, all those “victims” were sure to collect a nice sample to take to the doctor the next day for a lab test to be sure it was Salmonella and not one of four or five other species of food borne bacteria that could cause the same symptoms. And of course, people who do visit a doctor the next day because they are old and feeble, in bad general health, must recall everything they’ve eaten in the last 48 hours. “Well doc, I had bad smelling chicken sitting on the kitchen counter, so I doused it in salsa to cover the smell before I ate it”. Or, ”I went to an outdoor clam/oyster feed the other day and ate lots of the chips and salsa dip appetizer”. I guess the best words to describe this latest scare (last year it was strawberrys) is “farce”, or perhaps, “just plain stupid”.

Geothermal in Hawaii

Saturday, July 12th, 2008

It Isn’t Oil!

Geothermal energy: Clean, stable, always available

In 1881, King David Kalakaua had the bright idea of using Hawaii’s fiery volcanoes to produce electricity and light the streets. It took technology the next century to catch up with the visionary king.

On the Big Island of Hawaii, nearly 20 percent of the electricity we consume is produced naturally by tapping the Earth’s heat. It is firm, strong power that the island truly depends upon, enough to continually power 20,000 residences.

When the wind doesn’t blow and the sun doesn’t shine, heat from the Earth’s interior is always available.

Puna’s geothermal power station
delivers 30 megawatts of power,
with potential to deliver much more.
(Photo: Puna Geothermal Venture)

Puna Geothermal Venture, the only commercial geothermal facility in the state, has been generating sustainable electricity for the Big Island for 15 years.

Under a Power Purchase Agreement with Hawaii Electric Light Company, PGV sends all the electricity it produces—30 megawatts—to the utility. It could provide much more.

The slopes of Kilauea Volcano are the state’s best resource.  The only other island with significant geothermal resources is Maui, but its potential is considerably less.

Geothermal electricity:

  • Accounts for 30 percent of the state’s renewable energy—more than wind and solar combined
  • Saves 144,000 barrels of oil a year—more than 1.8 million barrels since 1993
  • Diversifies Hawai‘i’s energy sources
  • Means a much cleaner environment
  • Creates jobs and other economic benefit
  • Is a clean, stable, renewable source of power
  • And . . .  it’s local!
  • Puna Geothermal Venture invested heavily in new equipment and technologies to get where it is today. State-of-the-art equipment is used to drill wells deep into volcanic reservoirs—a mile or more—and bring up hot fluid and steam. The steam drives turbines that generate electricity.

    Geothermal is also ‘green’: No oil or other fossil fuel is used in the operation.

    The plant has near “zero” emissions because the brine and gases that are left over are injected back into the Earth, well below the water table, through another set of wells called re-injection wells.

    This is called a binary or closed-loop circulation system, meaning that no excess gases or fluids reach the open air. It is one of the most advanced methods for producing geothermal energy. All PGV wells are this type.

    Other uses are possible besides generating electricity. Geothermal could contribute to the manufacture of other technologies, such as hydrogen fuel cells. It could also provide direct heat applications such as drying fruit and lumber, greenhouse propagation and aquaculture projects—even heating buildings.

    And there are economic benefits. Puna Geothermal Venture has 30 full-time employees and various other contractors. Many live in Puna District.

    PGV seeks to be a good neighbor, keeping the community informed of its activities via newsletter, a 24-hour response line and online information.

    Geothermal energy is the backbone of renewable energy resources in Hawaii. As the electricity demands grow, Puna Geothermal Venture stands ready to expand the project to meet the needs of the community.

    Tours of the facility, for groups or individuals, are available but must be booked in advance. Call (808) 965-6233.