by Betty Yu

MOUNTAIN VIEW (KPIX) — While wind energy is the fastest-growing energy source in the world, wind farms provide less than five percent of the energy in the U.S.

But one Silicon Valley startup is aiming to change the market’s direction. CEO Ignacio Juarez co-founded Semtive six years ago in Argentina, where today you can find its turbines powering street lights and part of the Sheraton Hotel grounds in Buenos Aires.

The renewable wind energy startup opened its U.S. headquarters at NASA Research Park at Moffett Field last year.

“We developed a very simple, affordable and reliable way to generate clean energy with wind,” said Juarez.

Unlike wind farms, which rely on speeds of 30 mph or greater, Semtive’s turbines are made for low wind speeds. Its blades are designed to allow the turbines to keep spinning at low wind speeds – around 10 miles per hour – which is the Bay Area average.

Semtive says the turbines are ideal for urban and rural areas. They are made of aircraft-grade aluminum, and manufactured in Mountain View and Manteca. Installation on a rooftop or balcony takes less than an hour. You can already spot test turbines at homes in Pacifica and at University of California, Davis.

Biologists and animal activists have rallied against wind farms for years, because the blades are notorious bird killers. Surveys estimate that there are 5,000 or more bird deaths each year at the Altamont Pass.

Semtive says its new turbines are safe for wildlife. In fact, you can stop the blades with your hand.

The company believes its product is the first and most affordable small wind turbine on the market for homes and businesses.

The smallest model starts at $4,600. To offset the cost, customers can qualify for green tax rebates and incentives from the state and federal government.

“If you are living in a very small apartment in San Francisco you can put one on the balcony to generate clean energy there, if you have your electric car you can install one in your house to car your electric car,” added Juarez.

Wind energy can be generated at the cost of two cents per kilowatt hour. By comparison – solar energy averages about eight cents per kilowatt hour.

Juarez says if you PG&E bill falls under $150 a month – one medium-sized turbine can generate 100 percent of your energy usage.  All you need is the Semtive converter, which is included in the purchase. You plug it into any outlet and it sends energy back into the grid. And you can keep track of your savings with the accompanying app.

“Everybody can generate affordable clean energy today with our solution,” Juarez said.

The company is taking the first U.S. pre-sales on its website starting Tuesday, May 16.

“Semtive is an innovative company, they’ve got interesting technology,” said San Francisco State University Faculty Director of Graduate Business Programs Sanjit Sengupta.

Sengupta’s research focuses on new product development and technological innovation.

“If it really pans out it would be economically beneficial to consumers, even of solar, because you can’t do away with solar,” said Sengupta. “But, for example, if it’s a cloudy day and so on, and there’s not enough solar, then this would be a nice complement.”

Comments (70)
  1. I am afraid this is fake news. The key word is the title is “may”

    Small Turbines From Silicon Valley Firm “May” Shift Wind Energy Market

    Given the laws of physics, the cost, and the output of electricity it should have more accurately read “Probably Will Not”. Scale of the surface of the blades (power output is proportional to the square of the diameter) and height where the faster wind (power if proportional to the cube of the wind speed) are critical to the economics of wind power. Who and why plants these fake news stories? Is it delusional inventors or more sinister forces attempting to sow confusion?

    1. Rereading the article I read this Trumpian lie:

      “Biologists and animal activists have rallied against wind farms for years, because the blades are notorious bird killers. Surveys estimate that there are 5,000 or more bird deaths each year at the Altamont Pass.”

      I get it pretending to be pro-wind while spreading falsehoods. The report of the 30 year old tiny fast spinning wind turbines used to kill a few birds relatively to the hundreds of millions of birds killed by man-made structures. The problem at the Altamont was not the number of birds but the fact that 800 of them were golden eagles, an endangered species. The solution at the Altamont Pass was to replace the little turbines with giant safe for birds turbines that produce as much electricity as 57 old little turbines. They turn slowly and birds can now see them. Above all they turn above the flight zone of most birds and the monopole does not offer a place for birds of pray to perch for hunting that could cause accidents.

      Studies over six years by day and night with radar sophisticated enough to detect moth collisions with turning blades, tracted hundreds of thousands of migratory birds flying safely around, over, and through wind farms. http://www.folkecenter.net/mediafiles/folkecenter/pdf/final_results_of_bird_studies_at_the_offshore_wind_farms_at_nysted_and_horns_rev_denmark.pdf

      From the conclusion of the above article on the radar study:
      “This level of monitoring resulted in a mere 11 bird detections well away from the sweep area of the turbine blades, 2 passing bats, two passing objects that were either small birds or bats, a moth and one collision of a small bird.”

      One wonder if Donald Trump himself, who has been reported to use pseudonyms, is the actual author of this badly researched piece. The proposed turbines are neither economical nor safer for birds. Real and gigantic wind turbines save bird lives by displacing enormous amounts of dirty fossil fuel pollution generating electricity that kills, by causing respiratory illness in both humans and birds.

  2. ES INTERESANTE LA POSIBILIDAD DE IMPLEMENTAR ESTE SISTEMA PARA LAS VIVIENDAS Y DEPARTAMENTOS ,TANTO DEL AREA URBANA COMO RURAL.
    EL FINANCIAMIENTO DEBE INCORPORARSE EN EL COSTO DEL INMUEBLE,YA QUE NO ES SIGNIFICATIVO.EN EL ARAE RURAL SE PODRIA UTILIZAR IMPULSANDO AGUA DEL RIO HACIA AREAS SIN RIEGO Y OTRAS ALTERNATIVAS COMO MOLINOS DE GRANO SECO.

Leave a Reply to Eleftherios Pavlides Cancel reply

Please log in using one of these methods to post your comment:

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

More From CBS San Francisco

Get The New CBS SF Bay Area Local App
Got Our Weather App?
LIVE: Monday through Friday from 3am – 3pm PST

Watch & Listen LIVE