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SPRING TIDINGS
Update #20 April 14, 2009

FEATURED ARTICLES

Spread the Good News

Mayor Genser Dedicates Live/Work Solar Project

Sustainable Quality Awards

2008 - The Year of the Pipeline

Santa Monica's Solar Corridor

Homeowner Information Session

Feed-In Tariff Update


 

THIN-FILM: THE FUTURE OF SOLAR?
UniSolar produces a thin-film solar panel made from amorphous silicon.
UniSolar produces a thin-film solar panel made from amorphous silicon. The core design elements of their product work best on metal roofs with standing seams.




Traditional residential solar installations use crystalline panels because of their high energy efficiency.


Solar Santa Monica is frequently asked about "thin- film" solar. Compared to conventional crystalline panels, thin-film is popular for its cost, surface integration and flexibility, but overall it is less energy efficient. For example, one 14 sq. ft. mono-crystalline panel generates 230 watts of energy while a thin-film panel of the same size generates 70 watts.

Material reduction makes thin-film solar technology economical to manufacture and, therefore, less expensive for the consumer. Large grid-connected power plants use most of the thin-film panels on the market today. Advances in building-integrated photovoltaics assure that you will be seeing more from thin-film in the future, with solar cells built directly into materials like roofing tiles and windows.

From Tempe, AZ, First Solar announced an industry first that made news: thin-film cadmium telluride solar panels sell for less than $1.00 per watt! Approximately 99% of First Solar's thin-film panels are used for large- scale systems, but residential installs are made possible through a partnership with SolarCity. SolarCity is a leading residential and small commercial solar power and solar leasing company in California, Arizona and Oregon. Click here to read more about First Solar thin-film.

Thin-Film Facts:

Should I use thin-film on my roof? The higher your energy bills the larger your roof will need to be to offset thin-film solar panel costs. An average residential solar PV system is 4 kW; thereby requiring 57 thin-film panels (taking 800 sq. ft.) or 18 mono- crystalline panels (taking 252 sq. ft).

What constitutes thin-film? Different materials make up thin-film solar technology, such as: amorphous silicon (with 6-8% efficiency), copper- indium diselenide (with ~19% efficiency), and cadmium telluride (with 7-10% efficiency). Manufacturers continually investigate and experiment to find more efficient and cost-effective combinations of materials, mountings, and installation. Thin-film's potential for high module efficiencies and low cost has led to a large increase in private investment.

Is thin-film the future of solar? Thin-film is one of many solar technologies. Presently, large scale system projects use thin-film, solar thermal, or concentrating solar power. Mono or poly-crystalline solar panels dominate the residential market. It is dubious to assume one technology will lead the solar race in every application. Subject to energy needs and corresponding building structures, each solar technology fulfills a place in the market. Counting pros and cons should factor into every application you intend to do. The research, development and refinement of energy capturing solar technology are supported by governmental incentives, utility rebates, and increased worldwide demand.

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Solar Santa Monica is administered by
the City of Santa Monica,
Office of Sustainability and the Environment

Office of Sustainability and the Environment, City of Santa Monica



  • Spread the Good News
  • Thanks to the new tax credit, our Energy Analyses now show residents locking in solar power for as little as 14 cents/kWh. Paybacks are down to 10- 12 years, and return on investment is at 15-16% . Naturally, each installation differs, depending on electricity usage, system size, etc. Contact Solar Santa Monica to request a new, or updated, analysis of your property.

  • Mayor Genser Dedicates Live/Work Solar Project
  • Santa Monica Mayor Ken Genser

    Mayor Ken Genser describes features of the compact apartments at 1001 Olympic Blvd., developed by NMS Properties as affordable living for professionals, students and seniors. The 30 watt PV array on the roof, installed by PermaCity, helps keep costs low.

  • Sustainable Quality Awards
  • Solar Santa Monica at the Sustainable Quality Awards

    You may see Michael Ware and Drew Lowell-Britt offering the FREE Solar Santa Monica service at a variety of venues in our community. Here they are at the Sustainability Quality Awards, co-sponsored by the City of Santa Monica, the Chamber of Commerce, and Sustainable Works.

  • 2008 - The Year of the Pipeline
  • Santa Monica Solar Capacity

    Without question, 2007 was a "banner year" for solar. Total solar photovoltaic (PV) capacity doubled in Santa Monica, rising from 350 kW to over 700 kW citywide. In a single year, as much PV capacity was installed as had been installed in Santa Monica in 16 years. A highlight of 2007 was the City's biggest installation, the 181 kW Civic Center Parking Structure.
    This past year, 2008, must be recognized as "the year of the pipeline." Good news: Residential systems increased, as did commercial systems and capacity. PV capacity now totals over 1,000 kW (1 MW) in Santa Monica. And look at what's in the pipeline! In addition to 226 kW of capacity actually installed -there are over 2.3 MW of PV projects in the City in this pipeline.

  • Santa Monica's Solar Corridor
  • Santa Monica Solar Corridor

    Susan Munves demonstrates progress towards a Solar Corridor in Solar Santa Monica.

    Los Angeles County created the Los Angeles County Solar Map, a tool to help the public calculate solar potential per building. These estimates utilize satellite terrain and elevation data to then estimate solar electric potential for every 25 sq. ft. Taken into account is tree shading, nearby obstructions, and roof protrusions.

    Solar Santa Monica used this new GIS program and identified ideal solar rooftops on commercial buildings along Olympic Boulevard. Each "good roof" building owner is being contacted and informed of available solar incentives and financing options. Please stop by our office and view the Olympic Corridor map up close (1212 Fifth Street, Ste 100; at Wilshire & 5th).

    If you too would like an assessment of your building's solar potential, whether in the Corridor or not, contact Solar Santa Monica for a free Solar Site Check.

  • Homeowner Information Session
  • Southern California Edison is Santa Monica's electric utility provider

    Solar Santa Monica and Southern California Edison will co-host a 90-minute, non-technical, easy-to- understand homeowner solar information session on Saturday, May 30, 2009.

    The session is FREE of charge, but due to limited space, pre-registration is required. To register, call the Solar Santa Monica office at (310) 458-4992 or call SCE at (866) 970-9221.

    Date: Saturday, May 30, 2009
    Time: 10 a.m. - 12 p.m.
    Location: Santa Monica Public Library,
    Multi-Purpose Room, Second Floor
    601 Santa Monica Boulevard, Santa Monica, CA 90401
    Parking: Enter underground parking structure on 7th Street
    Event number (for SCE): 15-053009

  • Feed-In Tariff Update
  • Feed-in tariffs represent an exciting new opportunity for solar in California. The tariffs are sets of prices that electric utilities are required to pay for power that consumers "feed into" the grid.

    The prices per kWh make sense for investors, thus they are used as a policy instrument to stimulate markets for solar and other clean energy forms. The aim is to accelerate the uptake of renewable energy and catalyze the development of solar industries and markets. Feed-in tariffs are working in Europe (Germany and Spain in particular), recently taking off in Gainesville, Florida, and so much so that they are hard to ignore.

    In fairness, California does have a feed-in tariff for small renewable energy systems (up to 1.5 MW). Its prices are based on utility avoided costs, and thus its payments are too low to attract participants.

    Solar Santa Monica's Advisory Board has put this policy issue front and center: If the City of Santa Monica is to reach its energy and greenhouse gas emission reduction goals, solar must be a sound and predictable investment for property owners, especially apartment building owners. And this will require leadership to invest in clean and green energy today, and policies like feed-in tariffs to make it happen.

    Solar Santa Monica's Advisory Board has been working with our elected officials here and in Sacramento to advocate for the adoption of a solar feed-in tariff for California that would provide a return on investment sufficient to amortize the cost of the system and provide a reasonable return over 20 years. With less than 10,000 single family homes, and 40,000 apartments, California's net energy metering requirements simply don't work. Going virtual only complicates an already complex solar deal. A feed-in tariff allows for a building owner to maximize solar on the roof and to earn a return totally separate from the building's power use. Feed-in tariffs increase the value of all rooftops.

    To make this new solar deal a reality, the Advisory Board's FIT Subcommittee has drafted a bill that is now in the form of SB 523, fostered thus far by Senator Fran Pavley. It would provide for a solar feed-in tariff for small systems in the urban environment, enabling cities to take action to invest in a sustainable infrastructure and to protect the climate.

    Santa Monica is currently seeking support from its "solar cities alliance," from a broad coalition of advocates of clean, decentralized power for its multiple benefits, and from labor, to promote a form of power generation that puts power in the hands of the people, creating tens of thousands of jobs throughout our neighborhoods.

    If you are interested in learning more about feed-in tariffs please read a white paper on the subject by Solar Santa Monica. Contact Susan Munves with your questions and comments.

    (310) 458-4992
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