decentralized energy

Energy efficiency scores big, and there's growth on horizon

An increasing number of public and private organizations are realizing the importance of energy savings and picking up on the philosophy pioneered in 1970s California by the Godfather of Green, Art Rosenfeld.

While Rosenfeld, a nuclear physicist and California energy commissioner, started the movement that saved the state having to build many new electricity generating facilities, he's no longer the Lone Ranger.

For instance, the Manteca Unified School District reportedly shaved $2.2 million from its energy bill over 19 months through energy efficiency.

DTE Energy, which operates Detroit Edison, reported that its energy efficiency programs saved customers $31 million in 2010 with lifetime savings estimated to be about $520 million.

And 16 members of the American Chemistry Council saved enough BTUs through energy efficiency measures in 2010 to power all the homes in a city the size of Akron, Ohio, for one year.

To quote Donald Trump: "That's huge."

Energy efficiency operates through a simple premise: install devices that use less power to save energy and, more importantly, money. Another benefit is a reduced greenhouse gas footprint. But that benefit is more esoteric and generally lost on Joe Consumer, especially with fuel prices taking an extra share of his resources.

Many of the cities and counties we're working with at the San Joaquin Valley Clean Energy Organization are doing the same thing. Although the only recognition they're likely to get is whatever I write in this post and others that follow.

One of them, the City of Delano recently purchased 250 ecostrips for employee work stations. These power strips enable workers to turn off various electronic devices when not in use to reduce what many in the business call "vampire" power. This siphons off electricity for unneeded functions.

According to my calculations, which show the average ecostrip can save about 12 percent of energy used, the savings for Delano can save about 36,180 kWh a year. Not bad for something that costs $24.95. The project is just the start, and the city has much more planned.

And Tulare County, which is gearing up to launch an $826,000 energy efficiency lighting upgrade of about 17 of its buildings, could rack up savings of about 900,000 kWh. And that's just by replacing light fixtures and bulbs.

In fact, SJVCEO's work with the San Joaquin Valley Air Pollution Control District, which includes Tulare County and 35 other jurisdictions, amounts to potential savings of 5.5 million kWh. The savings on electricity bills and in CO2 should be noticeable.

When I started working for this organization about a year and a half ago, energy efficiency hardly seemed tangible. Sure, I knew about using less power. In fact, I had nothing but a swamp cooler in my home despite summer temperatures in the Valley pushing past 100 degrees 40 to 50 days a year. Evaporative coolers use a fraction of the power an AC unit does.

And I knew about turning off lights. My father, the light cop, also wouldn't turn on the furnace until the mud puddles outside started to freeze at night.

But my experience working with utility and state engineers on energy audits and my own research has shown what an important role energy efficiency can play on a national scale. Buildings use an estimated 80 percent of the nation's generated power.

Cut that by a third, and dividends come not only in reduced emissions but in national security. Less reliance on imported energy means less exposure to fluctuations in oil prices.

Extending that argument into renewable energy further bolsters the national security benefit while reducing pollution.

Some of the biggest drivers in this sector are institutions of higher learning.

For instance, universities in the Big 10 purchased 256.6 million kWh of green power in the 2010-2011 academic year, earning a first-place conference ranking in the U.S. Environmental Protection Agency's College and University Green Power Challenge. The University of Pennsylvania in the Ivy League won for best individual college with 200.2 million kWh purchased.

Gazing into my imaginary crystal ball, I see energy efficiency gaining increased importance on all fronts. Yet, I also see people responding more favorably to renewable energy, especially as prices for alternatives drop. If solar does become economically favorable even without subsidies, the decentralized power generation system envisioned by Al Weinrub will become a game changer.

And I see the EPA's annual greenhouse gas inventory gaining importance. The recently released 16th annual report shows a 6.1 percent decline in overall emissions for 2009, largely due to a stalled economy.

Perhaps in a few years, that decline will be attributed to efficiencies and alternatives.

Photo: Pre energy efficiency at old Lathrop School. Courtesy Manteca Unified School District.

Proteus develops work force for Valley's solar industry

If it's solar and in the San Joaquin Valley, Hector Uriarte Jr. probably knows about it.

Likely, he's been aware of the project ever since somebody mentioned it over coffee during the planning stages. Knowing about solar is one of his chief directives.

Graduates of Visalia, Calif.-based Proteus Inc.'s solar training program depend on his connection with the fledgling clean energy industry for potential jobs. In the past year, about 175 students from the economically battered Valley have completed the Solar Photovoltaic Design & Installation program, learning everything from hands-on technique to theory.

One thing Uriarte has found is that finding jobs -- at least at this point in the industry's evolution -- is far from simple. About 65 percent of his graduates have found work in the field. He'd like, of course, to make that 100 percent.

But "we're working with an emerging market that hasn't emerged," he said.

Companies have big plans in the Valley, with anecdotal evidence of at least several dozen projects of multiple sizes. So far though, most of the large-scale commercial solar installations remain on paper.

One of the larger is a 400 megawatt array just east of Interstate 5 near Tranquillity in Fresno County that would be built in phases, and could contain up to 2.5 million solar panels sprawled over 3,500 acres, according to a Sandy Nax post. Another, a proposed western Kern County project, is on land that couldn't be farmed from lack of water.

The latter project won the approval of the Bakersfield Californian editorial staff, who wrote, "It's welcome news that Kern County supervisors have given their blessing to a 6,047-acre solar project between Taft and Interstate 5. The 700-megawatt project positions photovoltaic solar panels on 4,868 acres."

That means jobs. But forecast construction remains more than a year on the part of the Tranquility project, proposed by San Francisco-based Recurrent Energy.

In the meantime, a trained work force is under its own form of construction. Uriarte says the graduates of the Proteus program land a job at the low end of the skill spectrum, usually as installers on small crews of four or five people.

Big projects require multiple crews. Crew members have varying degrees of skill and status within the company. Uriarte says the more work, the more experience and the greater the opportunity for advancement within the industry.

Many future solar projects in the commercial spectrum may be for specific needs. For instance, the city of Atwater, Calif. was considering a solar array to defray the massive costs devoured during the summer season by water pumps. Solar at the site could drastically cut electricity bills.

Other cities and counties may consider going the route. The California Energy Commission is developing a potential new program that would provide local governments with planning and permitting assistance for renewable energy. Dubbed RP3, the idea won the support of the group, Joint Venture: Silicon Valley Network, which has as one of its directors Larry Alder of Google Inc.

Russell Hancock, president and CEO of Joint Venture, said the program "has the potential to have a measurable impact."

Solar is coming. When remains a big question as does how. Al Weinrub, who has penned "Community Power: Decentralized Renewable Energy in California," believes that businesses should -- and likely will -- yield their rooftops to solar panels to defray energy costs.

Talking to Proteus Inc.'s solar instructor Rick Gonzales recently, it was hard not to feel optimistic. The former human resources executive exudes positive vibes and believes in what he teaches.

He's passing that onto his students. And if they absorb just 15 percent of that (about the amount of energy a solar module absorbs from the sun), the San Joaquin Valley will definitely be worthy of the University of California, Merced's designation of a "solar valley."

Photo: Proteus Inc. students learn the craft.

Rooftop solar & decentralized generation can save California

Rooftops may not be the final frontier, but they do provide ample fields for cultivating solar panels.

So says Al Weinrub, who has penned "Community Power: Decentralized Renewable Energy in California." Weinrub is a member of the Sierra Club California Energy-Climate Committee and serves on the Steering Committee of the Bay Area’s Local Clean Energy Alliance. He said he relied extensively on work from both.

"Decentralized generation means that local residences, businesses, and communities become electric power producers," he writes. "Businesses with large rooftops or parking lots can become small power companies that feed electricity into the grid."

The beauty is that these buildings are already connected to the electrical grid and have an existing footprint, benefits that a remote solar installation doesn't always have. Industrial solar on empty land requires extensive permitting, studies and review of environmental impact, especially if its federal. Those panels definitely can change a picturesque landscape.


Buildings offer many acres of alternative energy opportunity. Just check out John Majoris' work at solaraerials.com for a King Kong view of some pretty amazing projects.

Rooftop power

Sandy Nax and I came to a similar conclusion over the the past year or so. Actually our former governor said the same thing and we agreed: The otherwise unused rooftops of the acres of warehouses in Fresno/San Joaquin Valley provide a great place for easy-to-permit solar and a cheap additional crop to be farmed on those rather ugly asphalt-topped fields.

I apologize in advance to any owners of said structures who have added white "cool roofs," that drastically lower cooling costs by reflecting sunlight.

Some companies in California already are moving ahead with industrial solar on commercial warehouses. IKEA, for example, plans to install 7,980 panels on its Tejon distribution center just off Interstate 5 at the foot of the Grapevine south of Bakersfield. The installation will generate 2.8 million kilowatt hours annually, enough to power 251 houses. The retailer also plans solar systems at stores in Burbank, Costa Mesa, Covina, East Palo Alto, Emeryville, West Sacramento and San Diego.

Solar for cities

At an Atwater City Council meeting, the concept was raised of using solar panels to defray the intensive costs of pumping water to meet summertime demands. All small jurisdictions in the San Joaquin Valley, like many across the nation, are hard-hit due to reduced revenues from dramatic declines in real estate values.

For instance my house in Clovis is now worth $120,000 on a good day. I bought it in 2005 for $269,000. Such dives in value cut revenues from property-tax dependent cities and counties in half and result in tough challenges come budget time.

Solar isn't perfect. But it does offer an avenue to electrical generation far cleaner than fossil fuels. Our mission would be to spell out costs, find the best sites and interpret the volume of data out there, making it easier on over-worked municipal staffers.

Change isn't simple

Weinrub doesn't say it will be easy. Quite the opposite. "Achieving this vision will require overcoming obstacles from the energy and utility industries, public agencies, and other interests vested in the century-old investor-owned utility model," he says. The potential is a 2010 commercial rooftop capacity of 19,323 megawatts, he says.

The solution? Weinrub suggests new policies and programs. One is community choice energy, "which allows a city or county to aggregate the electricity demand of all customers," and the other a more controversial concept called a feed-in tariff, which is used in Germany and elsewhere to bring the cost of alternatives in line with conventional energy on the grid.

The U.S. Environmental Protection Agency also likes the idea of using already occupied space. It is soliciting applications from communities and other governmental bodies that want to evaluate the potential development of renewable energy on potentially or formerly contaminated properties.

The National Renewable Energy Laboratory will make the call, figuring what works best where. The plan is to create jobs and increase renewable energy.

Maximizing alternative energy opportunities while minimizing impact. Sounds like a great idea.

Photo courtesy John Majoris at solaraerials.com.