Saturday, July 30, 2011

TVA Goes Solar

The TVA generates the majority of its power from coal, but now is considering solar. See article below:


STANTON, Tenn. -- It's a safe bet that no one in this quaint little railroad town, with its cotton-processing operations and Main Street cannery, ever expected to see a farm quite like the one sprouting a few miles down the road.

Wednesday, July 27, 2011

By: Steve Castle
http://greentechadvocates.com/2011/07/27/solar-installs-can-you-scale/


Is it worth getting into the solar installation business? That may depend on whom you talk to.
According to Joe Bono, CEO of Solar Universe, the market for residential solar installations can result in a very lucrative business if done right.

Bono says that solar panel leasing programs, which provide solar panels to homeowners and small businesses at no up-front cost, are becoming increasingly popular. (System users are guaranteed a certain amount in energy production from the solar arrays, so they should save more on their electricity bills than they pay per month to lease the panels.)
He says leasing has grown from about 10 percent of California’s residential installation market in 2009 to 25 percent in 2010 and 34 percent in the first quarter of 2011. In addition, some smaller and municipally owned utilities offer good rebates for homes producing solar electricity. SRECs (Solar Renewable Energy Credits) that pay homeowners and businesses for producing energy to help offset their system costs, are available in some states. Feed-in Tariffs, which pay producers a cost-based price per the energy produced, have been instituted in Ontario.

“Anybody with electricity bill of $150 to $200 and higher is a good candidate for solar [photovoltaic systems],” Bono says. “We often see bills in the $300 to $400 a month range,” and in many cases those are decreased by half or more with a solar array. He says that those who have invested in electric vehicles with in-home EV chargers are also good candidates for solar, as the chargers can use significant amounts of electricity.
Bono says his company usually sees gross project margins of about 20 percent.

Can You Scale?

“There are two parts of this business: scale and execution,” says Bono. “There are a whole lot of moving parts with lead generation, marketing, sales teams and managing installations. If you don’t have the delivery platform or can’t scale up, it’s hard to compete.”
Solar dealers should plan on making smaller and medium-size margins, and a compression of margins from an influx of inexpensive solar panels from China could make it hard for small dealers to compete.
Bono says the top ten solar installation companies in California, in which Solar Universe is a part of, command about 40 percent of the state’s market.
To scale up, Solar Universe is taking a franchise approach and now has 22 franchise locations in seven states. The company trains electrical contractors, roofers and other entrepreneurs in the sales process and delivery platform. The company also provides a software platform that includes estimation, build materials, design and invoicing; a call center; marketing collateral; and marketing campaigns on quarterly basis.
The franchise approach allows the company to buy product at volume rates. Bono believes that thin-film technologies like CIGS (Copper Indium Gallium Selenide) and CdTe (Cadmium Telluride) hold a lot of promise, as their lower manufacturing costs could further reduce the price of solar installations, but that the crystalline silicon panels that currently dominate the market are still the best bet for efficiency and stability in having more established companies backing them.
Bono identifies many of the issues involved with solar panel sourcing:
Unique Supply Chain:
  • Design/engineering, sourcing, manufacturing and assembly happen in different countries.
  • Incentives of countries/states dictate where the panels flow.
  • Currency exchange rates can affect supply.
  • Vertically integrated manufacturers vs. outsourced manufacturing.
  • No dominant brands that are well-known.
Product Quality:
  • R&D and testing are must haves.
  • A solar panel is not just a panel. All of them perform differently.
  • Must review the financial backing of the company.
  • Review the warranty. Is it meaningful?
  • Manufacturing tends to be either totally automated, labor intensive or hybrid.
  • Clean rooms and efficiency are similar to semiconductor industry—very impressive.
  • Aesthetics can play a big role in consumer adoption, particularly in residential.
Warranty:
  • Look at length.
  • Is it backed by an insurance policy or company backed?
  • What does it cover and how are warranty problems remedied?
  • Legacy product replacement (replacing a 175-watt panel with the latest 240-watt panel does not work).
How Products are Ordered:
  • Direct from manufacturers.
  • Through “solar” distributors.
  • Through “electrical” distributors.
Pricing:
  • Very competitive landscape.
  • Changes frequently and follows typical supply/demand curve and perception.
  • Chinese are leading the price reductions.
  • Must negotiate in volume to achieve best prices.
  • Supply commitments can help negotiate price, but not good for buyer as there is such volatility.
Availability:
  • Product SKUs change often as technology improves.
  • Availability can depend on currency rates and demand from other countries.
  • Not as simple to swap out one brand for another.
  • Customers can get “set” on what they were sold.
  • Electrical compatibility of inverter + panels + space + string sizing.
  • Buyers should standardize on handful of products to manage.
Terms:
  • Typical terms are net 30 to 60 days.
  • Credit is based on relationship + balance sheet + references.
  • Some suppliers will provide discounts based on early pays.
  • Time = money
Relationship:
  • Constantly shopping price can sour relationships?
  • Forecasting is a big plus for both parties.
  • Opportunities exist when the suppliers need to stuff the channel with excess.
  • Getting to know the supplier well is key for price + availability + problem solving.
  • Solar is a small world, so treating vendors right is paramount.

Monday, July 11, 2011


YOKOHAMA, Japan -- Japanese automaker Nissan is testing a super-green way to recharge its Leaf electric vehicle using solar power, part of a broader drive to improve electricity storage systems.
Nissan's Leaf went on sale late last year, but the automaker is looking ahead about five years, when aging Leaf vehicles may offer alternative business opportunities in using their lithium-ion batteries as a storage place for electricity.
Nissan acknowledges that, once the Leaf catches on, a flood of used batteries could result as the life span of a battery is longer than an electric vehicle's.
Electricity generation and storage are drawing attention in Japan after the March 11 earthquake and tsunami caused massive blackouts in the country's northeast. A nuclear power plant that went into meltdown, Fukushima Daiichi, after backup generators were destroyed by the tsunami, is also renewing fears about a power crunch.
In the new charging system, demonstrated to reporters Monday, electricity is generated through 488 solar cells installed on the roof of the Nissan headquarters building in Yokohama, southwest of Tokyo.
Four batteries from the Leaf had been placed in a box in a cellar-like part of the building, and electricity generated from the solar cells is stored -- enough to fully charge 1,800 Leaf vehicles a year, according to Nissan.
Although interest is growing in renewable energy such as solar and wind power, a major

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challenge is the storage of electricity, which remains expensive without a breakthrough in battery technology.
Other Japanese automakers, such as Toyota and Honda, are working on similar projects, such as linking hybrids with solar-equipped homes as part of energy-efficient communities called "smart grids."
Electric vehicles produce no pollution or global-warming gases but need electricity, whose production mostly relies on polluting oil or gas.
Even after a Leaf is ready to be scrapped, its battery is likely to have 80 percent of its capacity. On the plus side, the Leaf's high-capacity battery can store the equivalent of two days of household electricity use, Nissan said.
"What's important for Nissan is to show solutions through EVs, step by step," Corporate Vice President Hideaki Watanabe said.
A joint venture with Sumitomo called 4R Energy plans to offer eletricity storage systems like the one at Nissan headquarters for business and public facilities as a commercial product by 2016.
Nissan also hopes to start selling such storage systems for regular homes by the fiscal year starting in April 2012. It will carry out field tests from December, 4R Energy President Takashi Sakagami said.
Original Post : http://www.mercurynews.com/cars/ci_18455170?nclick_check=1

Friday, July 1, 2011

PV Module Supply Glut

PV module prices have dropped 70% since 2008, when the financial crisis sent demand tumbling, with Chinese multicrystalline silicon module prices currently as low as $1.49 per watt, according to Bloomberg New Energy Finance's (BNEF) Solar Spot Survey. In part, this was an example of "the Bubble giveth, and the Bubble taketh away." For the three to four years ending in 2008, the long-term downtrend of PV prices, which had been driven by the learning curve and imporving technology, stalled due to strong demand. Then, when the financial crisis suddenly removed the availability of cheap financing, demand vanished, and prices plummeted.