CEGA Welcomes Ralph Krongold as Chief Solar Trainer

CEGA, one of the leading solar companies in the Southern California region, announces the appointment of Ralph Krongold as its new Chief Solar Trainer. Mr. Krongold will be responsible for conducting training sessions for contractors and other interested people looking to get involved in the solar industry.

Mr. Krongold was responsible for the development and implementation of a Solar/Renewable Energy Program at Los Angeles Valley College. Prior to that, as a professor he taught Solar Energy/PV at Santa Monica City College.

The selection of Mr. Krongold as Chief Solar Trainer for CEGA, was a natural fit due to his more than 40 years of industry experience as an Electrical Engineer in the fields of Solar Energy, Aerospace, Assistance Technology and Product Development along with his extensive background as an Adjunct Professor at various community colleges and career schools in the fields of Solar Energy, Electronics and Mathematics.

Solar Energy and Clean Technologies became a passion to Mr. Krongold some time ago with his critical role in the design and development of the sensor processing electronics for the history-making, solar-powered aircraft, Helios.

In early 2012, Mr. Krongold traveled to Costa Rica to participate in a program for college instructors that focused on various types of renewable energy and sustainable living.

“I am delighted to be a member of the CEGA team,” Krongold says, “and to have the opportunity to use my skills and expertise to help society in its transition to cleaner, safer energy. I am confident that CEGA will play a significant role in the design and installation of residential, commercial and industrial solar PV systems in Southern California and beyond.”

Mr. Krongold holds a Master’s Degree in Electrical Engineering from New York University (NYU), and a Bachelor’s Degree in Electrical Engineering from the City College of New York (CCNY). In addition, he has a NABCEP certification, which gives him the authority to not only install Solar PV systems, but also to teach and evaluate the competency of solar practitioners.

With his extensive academic and professional experience, Ralph Krongold is poised to help further the progress of the Solar Energy Industry. As Chief Solar Trainer at CEGA, he will be at the cutting edge of new industry developments, while spreading his knowledge to others who can help advance the country’s critical path toward expanding nationwide installation of clean energy sources.

The Myths Behind Offshore Drilling

Offshore DrillingIn terms of hot topics, offshore drilling is kin to a raging forest fire. It is one of the more vehemently opposed, or supported, solutions to our accelerating energy crisis. The GOP ticket sure has plenty of experience in offshore drilling or, at least, in talking about it and voting for it. The Democrats have long opposed offshore drilling and have fought vigorously to keep it from expansion, claiming that it’s a short-term solution at best because there just isn’t enough oil off our shores (relative to our demand). Although, the Obama/Biden campaign has recently come out in support of some offshore drilling. So what’s the deal? Is offshore drilling suddenly a unifying force in politics? Could it really be safe now? Not likely. Still, risks are high and rewards are low. And yet a lot of myths persist in presidential debates and media discussions. Here are three big ones that I hear most and why they fall apart with just a little investigation:

Drilling offshore will reduce our dependence on foreign oil. Sure there is oil off our coasts, most notably in the Atlantic, and they could be harvested. But to what end? Experts widely agree that the U.S. has but 3% of the world’s oil in reserve (including ANWR), but we consume 25%. Where will the other 22% come from? Foreign countries. There is no erasing our dependence on foreign oil with an energy policy focused on oil, on or off shore.

Offshore drilling is finally safe. The oil industry and drilling supporters claim that technology is so far advanced now that drilling can be done with little or no environmental impact. Yes the machinery is more high-tech and less likely for failure. But they are ignoring natural forces. Like a huge slap in the face to offshore drilling, Hurricane Ike wreaked havoc on oil rigs in the Gulf of Mexico, which spilled over a half-million gallons of crude oil into the Gulf and bordering wetlands. This is not to mention that Katrina and Rita, from a few years back, caused 734,400 gallons of oil to be spilled. Bear in mind that 100,000 gallons is considered a major spill. (more…)

The Myths Behind Offshore Drilling

Solar Thermal + PV = Efficiency x 3

Efficiency

No sooner do I write about co-generation as a means of conserving energy and reducing emissions, then I find out that solar innovators are already applying such technology by combining solar thermal and photovoltaic systems. The difference? Instead of minimizing losses, co-generative solar systems are maximizing gains. In doing so, these innovators say, they can triple system efficiency.

A solar PV system will usually convert only 10-15% of sunlight directly into electricity for the home. The remaining 85% of solar radiation is lost as waste heat. Two companies, SolarWall and PVT Solar, are harnessing some of that otherwise wasted heat by adding solar thermal components to the electric system. The idea is simple. Solar panels are typically placed on roofs at an angle. Furthermore, there is typically air space left between the roof and the bottom (or back) of the panel. It is here that a significant amount of heat collects. This heat can be collected to heat water, space, even swimming pools.

This not only utilizes waste heat, but also helps keep the panels cool, allowing them to work more efficiently at peak hours. Also, adding solar thermal components does not necessarily require very much additional structure, subsequently adding a relatively small amount of cost to the co-generation system. Take solar water heating; a retrofit solar hot water system is the cheapest way to integrate solar into home energy plans. Combining that with a solar electric system makes it even more cost-effective. (more…)

Solar Thermal + PV = Efficiency x 3

Solar Gets Bailed Out!

They say that every cloud has a silver lining. In that case, the recently passed – only slightly improved – bailout bill is quite the thunderhead. But here’s the silver lining…the solar tax credits have been renewed!! It’s a shame that it took such a ridiculous but certain-to-pass bill to get what we solar fans have been pining for – and opining about – in the last few years. And it came in the nick of time, with solar stocks falling, solar companies cinching their belts, and eager homeowners beginning to give up hope.

Yet, hope for renewable energy has been regained! The bill will extend the all-important Investment Tax Credit (ITC) for eight years and … with a huge round of applause … it removes the $2,000 cap on residential electric systems! This is what so many homeowners have been waiting for. This is a big break. While the tax credit for residential systems has always been 30% of the cost, it was for some reason capped at the two-grand mentioned above. So, let’s say your solar system will cost $40,000 to purchase and install. Beginning in 2009, you can now expect up to $12,000 in credits from the feds … that’s a 600% increase! Combine that with oft lucrative state rebates and incentives, and you’ve made solar energy systems considerably more affordable. (more…)

Solar Gets Bailed Out!

Solar Coming Out of the Shadows

Falling LeafOf the many variables inhibiting solar cell efficiency, shade is a big one. It’s not just the shadow of a tree over a panel that causes problems. In fact, just a leaf falling on one solar cell can cause failure in an entire string of cells. That is why you hear “peak sunlight” in reference to solar panel efficiency. Because it is only in full sunlight that panels are working at ideal capacity. To eliminate or reduce this problem would be a huge breakthrough for the solar industry. Solar researchers in Australia believe they have accomplished that very goal.

In answer to what they call the “cannibalizing” of solar power generation, these researchers from Australian National University have devised a system that alleviates the problem. Their design consists of curved mirror-like solar concentrators that focus light directly onto photovoltaic cells to produce electricity. The idea is rather simple. The troughs are much less affected by interference from shadows, falling leaves, birds, whatever. I can’t help but imagine a solar panel, complete with aluminum tray, sun-tanning on a beach. (more…)

Solar Coming Out of the Shadows

It’s In the Cut: Utah Students Develop Viability of Germanium for Solar Cells

If you’ve been into outer space lately, you may have seen some germanium-based solar cells. They’re primarily used on NASA spacecrafts. For the few who haven’t, then you may not be aware of germanium at all. That’s because, as a solar cell material, germanium is far too expensive. Or is it?

Germanium is an efficient semiconductor. However, as a material it is very brittle and, subsequently, difficult to cut thin, with a significant amount of material wasted in the cutting. In what could have major repercussions for the solar industry, University of Utah students have developed a new way of cutting germanium into thin wafers for solar cell production. Using a tiny molybdenum wire with an electrical current running through it, the students can cut thin, round wafers of germanium from cylindrical ingots. This, they say, could greatly reduce the cost of germanium as a cell material and make it a viable option for solar manufacturing on Earth. (more…)

It’s In the Cut: Utah Students Develop Viability of Germanium for Solar Cells

Solar Treks the Globe

As the world turns, so solar spreads, making news all across the globe. We all know how fast it’s growing the U.S., but we often miss out on solar’s trek around the world. Here are some recent solar headlines:

  • Early this year, Renee posted an article very similar to this one. In that piece she mentioned Japan’s Eurus Energy, a prominent wind power firm that was branching into PV with their first solar plant in South Korea. That 1 MW plant is now up and running. You can read the press release here.
  • It’s hard to ignore Q-Cells, the German company that this year surpassed Sharp Solar as the world’s largest solar manufacturer. Involved in silicon processing, thin-film and PV manufacturing, Q-cells is constantly making news.
  • Solar-aid plays a big role in bringing solar power to the developing world, most notably rural Africa. Through unique fundraising, the organization is solar-powering education, health, and welfare where it’s needed most. (more…)

    Solar Treks the Globe

Co-ops, Condos, and Co-Generation

In the ongoing effort to improve efficiency while reducing greenhouse gas emissions, many large residential and commercial buildings are studying co-generation as a means of accomplishing both goals. In essence, co-generation signifies getting two forms of energy from one process. Blackouts, brownouts, and increasing demand on a weak utility infrastructure are causing many large cities to promote co-generation. Many complexes see it as a way to save themselves and their residents money on utility bills.

What is it?

Most buildings get their energy from the power grid, mainly through natural gas or oil-based systems. During the process, a lot of energy is lost, usually through steam. The idea of co-generation is to get two thermal energies from the one product. For instance, when a system produces electricity, oftentimes steam is released during the process. That steam can then be captured and used to provide water or space heat for the building; significantly cutting down on energy costs.

Rarely do co-generation projects provide all the energy needs for a building, but they can make a sizable dent. In addition, according to The Cooperator, a co-generation system is not for every building. There are several factors that must come together to make the project worthwhile, most notably the size and load factor of the building. New York City, led by Mayor Michael Bloomberg, has become a major proponent of co-generation in its effort to reduce the city’s carbon footprint. (more…)

Co-ops, Condos, and Co-Generation

Amid Protests, Fate of German Solar Industry Remains Unclear

german-solar-paneled-houses

Likely a result of mass protesting, the German government recently announced that their scheduled cuts in solar subsidies would be delayed and perhaps revised. Cuts for residential solar photovoltaic (PV) systems have been delayed until May. At that time, incentives will undergo gradual reductions each month. Cuts for solar utilities have been delayed until June.

When Chancellor Angeles Merkel’s government began to push for cuts, anti-solar energy factions widely publicized the news as proof that the renewable energy isn’t a feasible solution to the world’s energy crisis. Yet the opposite may be true. In 2000, renewables accounted for 6.3 percent of Germany’s energy sources. Renewable energy now accounts for over 20 percent of Germany’s electricity.

When the weather is favorable, there are days when renewable sources generate more energy than the country uses, according to a report in the New York Times. Germany’s generating capacity from all forms of energy now stands at 133 gigawatts, but Germany needs only 90.5 gigawatts to meet demands, according to the director of the German Federal Environment Agency, Harry Lehmann.

Germany’s electrical grid is not connected across the nation, however. The electric utility Amprion is working on installing 500 miles of transmission lines across the nation.

German subsidies have not only been successful in creating a broader demand for solar but have prompted new technologies, helping to bring down installation costs. Costs for German solar modules have dropped to almost $1 per watt. The amount of solar installations last year was double the government’s target. Germany added 7.5 gigawatts last year alone and expects to add 8 more gigawatts this year.

Merkel’s government argues that subsidies are becoming less necessary. The opposition argues that cuts will result in the loss of tens of thousands of green jobs, an argument that carries some weight as Europe struggles with high unemployment rates. According to a Reuters report this week, the euro zone’s unemployment rate has risen to 10.7 percent, the highest it’s been since 2000.

Far from being a failure, German’s solar incentive programs may be a victim of their own success.

Amid Protests, Fate of German Solar Industry Remains Unclear

Go to Residential Solar

Sharp Introduces Solar Panels You Can Snap into Place

sunsnap-solar-panelsMost homeowners looking to go solar either buy a system for thousands of dollars or lease one.

Now, thanks to Sharp’s new SunSnap product, they’ll soon have a new option. For as little as $1,000, you can buy a single panel with a micro-inverter built right into it.

The new Sharp Solar system made its debut at this year’s TED Conference in Long Beach, California. TED is a nonprofit organization that promotes innovative ideas. The SunSnap system was installed on LivingHome C6, the first low-cost built by fabricated homes builder LivingHomes. Solar provider Paramount Solar performed the installation.

For pricing on a solar installation, click here.

Sharp is calling the SunSnap product a “home appliance.” Each solar panel is a black-on-black 235-watt module. A micro-inverter, mounting and grounding assembly is incorporated into each panel. Sharp Solar senior vice president Eric Hafter said, “It’s called SunSnap, because you literally snap the next panel into place.”

The system is designed to make installation of a residential solar system simpler, and to enable homeowners to start their solar system with as few as one panel and add more panels later. The black-on-black module may address aesthetic concerns as well.

Sharp is currently selling the SunSnap system to solar contractors and installation partners. One partner has already installed a system large enough to provide all of the electricity needs for that homeowner. Sharp plans to begin selling the system on the retail market later this year.

Hafter says the SunSnap is easier to install than a new dishwasher. PV inverters don’t typically have the same product life as the panels. If Sharp has addressed this concern with an incorporated inverter that is as long-lasting as the panel itself, residential solar may take another leap forward.

Sharp Introduces Solar Panels You Can Snap into Place

Go to Residential Solar

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