You are currently browsing the SustainTechs weblog archives for the day 17. April 2008.
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- 24. June 2009: Aurora Biofuels
- 19. June 2009: Cherrypal, Inc.
- 18. June 2009: Planet Metrics
- 9. June 2009: Utility Scale Solar, Inc.
- 9. June 2009: SunNight Solar
- 9. June 2009: Iogen Corporation
- 9. June 2009: Prism Solar Technologies, Inc.
- 8. June 2009: Fisker Automotive, Inc.
- 14. May 2009: OPX Biotechnologies, Inc.
- 14. May 2009: SCR-Tech, LLC.
Archive for 17. April 2008
LUZ II
17. April 2008 by Mykel Pereira.
LUZ II Ltd.
11 Kiryat Mada St., Amot bldg #6,
P.O. Box 45220, Har Hotzvim,
Jerusalem, 91450 Israel.
Phone: +972-(0)77-202-5000
Fax: +972-(0)2-571-1059
Mail: info@luz2.com
BrightSource Energy Inc.
1999 Harrison Street,
Suite 500
Oakland, CA 94612, USA.
Phone: 510-550-8161 x108
Fax: 510-550-8165
Mail: info@brightsourceenergy.com
About
LUZ II develops utility-scale solar power plants using a unique, proprietary technology which converts sunlight to electricity. LUZ II’s technology provides relatively low-cost power during peak demand periods. By using standard, inexpensive materials and economies of scale in manufacturing, LUZ II’s plants achieve the lowest cost solar electricity in the world.
LUZ II Ltd.,of Jerusalem, Israel, is a wholly owned subsidiary of BrightSource Energy Inc. (BSE), of Oakland, California. BSE is owned by Mr. Arnold Goldman, VantagePoint Venture Partners, a leading venture capital firm, and private investors (some of whom were investors in the original Luz). LUZ II Ltd. performs R&D, production and project engineering.
BSE has recently signed a Memorandum of Understanding with Pacific Gas & Electric Company to negotiate an agreement for 500 MW of projects on an accelerated basis. The Company is also engaged in project negotiations with potential strategic partners in Spain for an estimated 50 to 150 MW.
BSE/LUZ II’s technology provides relatively low-cost power during peak demand periods. Utilities and large commercial and industrial customers place a premium on the power that is produced during peak demand times. By using standard, inexpensive materials and economies of scale in manufacturing, BSE/LUZ II’s plants achieve the lowest cost solar electricity in the world.
The combination of environmental concerns and rising prices for commodity fuels has caused a number of states in the U.S. to adopt Renewable Portfolio Standards (RPS). These standards require utilities to purchase as much as 33% of their power from renewable energy sources, such as wind, hydro and solar, by specified dates. For example, California utilities are currently under a mandate to purchase 20% of their power from renewable sources by 2011 (compared to 12% at present), and 33% by 2020. Historically, utilities have depended on wind power to meet their RPS requirements. However, wind is not a predictable source of power and typically delivers its power at night, when electricity demand is lowest. Solar energy has a much higher degree of predictability, with only a 10% yearly production variance. Solar power peaks exactly when electricity demand is greatest, during the afternoon hours and during summer months when air conditioning loads are increased.
BSE/LUZ II’s DPT system can also utilize natural gas to generate electricity during periods of reduced solar availability, such as early evening hours when demand is still high. Using this system, BSE/LUZ II can offer utilities firm capacity commitments for peak and shoulder periods. This dispatch capacity and flexibility provides significant value to utility companies.
Technology
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LUZ II’s proprietary, hybrid, solar-gas powered generating technology, Distributed Power Towers (DPT), is significantly more cost effective than any other solar thermal technology. LUZ II’s project-ready, Generation One technology, (DPT 550), produces reliable, peak power electricity by using solar energy to create superheated steam. LUZ II’s DPT technology consists of a number of solar clusters, each of which includes a power tower surrounded 3600 by an array of heliostats. Heliostats are flat, glass mirrors which track the sun and reflect sunlight onto a receiver, which is located on the top of a power tower. Power towers are linked together by pipelines to a central location where electricity is generated and sent to a power grid. The DPT 550 technology heats water to superheated steam at a temperature of 5500 – 5650 C. A high efficiency steam turbine converts the superheated steam to electricity, which is sent to a power grid. The DPT 550 technology is more than 40% efficient in thermal to electric conversion. Both 100 MW and 200 MW power plants are currently being designed. |
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Posted in Israel, California, Solar Techs, USA | No Comments »
Verdant Power
17. April 2008 by Mykel Pereira.
Verdant Power Inc.
New York*:
The Octagon
888 Main Street, Suite 1
New York, NY 10044-0213
About
Verdant Power was established in 2000, growing steadily from a few generalist engineers assisting the company’s founders, to the diversified base of world-class designers, engineers, scientists and business professionals who make up the company today.
Combining the efforts of this team with a global tapestry of collaborative relationships and stakeholders, Verdant Power is a world leader in commercializing marine renewable energy solutions for global application.
What They Do - Products
Verdant Power is a world leader in the design and application of marine renewable energy solutions. Modular and scalable, Verdant Power’s patented systems employ underwater turbines to generate clean energy from the natural water currents of rivers, tides and manmade channels.
In addition to designing and commercializing its own technology, Verdant Power also develops projects around the world and, under some circumstances, will serve as the owner-operator of projects.
Free Flow Turbine
A central technology applied in Verdant Power’s Kinetic Hydropower Systems is the Free Flow Turbine, a three-blade horizontal-axis turbine designed to capture energy from the natural flows of tidal or river currents.
Free Flow Turbines are installed and operate fully under water, invisible from the shore. They are scalable to various sizes depending on site characteristics, and can be grouped into small or large clusters to produce village- or utility-scale power.
Free Flow Turbines rotate at a slow rate, allowing for safe fish passage and causing minimal environmental impact.
Posted in Tidal Techs, New York, USA | No Comments »