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Sanyo releases test results of thinner HIT solar cells

Sanyo Solar Electric released test results of the 85 micrometer-thick solar cell. Sanyo claims their HIT solar cell reached an efficiency of 21.4% at a thickness of 85 micrometer-thick. According to the company when the thickness of the HIT solar cell was reduced the drop in the conversion efficiency was limited because the open circuit voltage rose. Typically Sanyo HIT Solar Panels have an efficiency of 22.3% This test shows that Sanyo is trying to develop a thinner version of the HIT solar cell while balancing high efficiency. Sanyo Solar panels are highly regarded as highly efficient solar panels and are preferred in the residential and light commercial market in which southern roof space may be limited and since highly efficient solar panels produce more watts per square foot, receive a larger rebate and break even faster these types of solar panels make a good choice when considering multiple brand of solar...

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Roofscreen Solar Panel Racking

Roofscreen has diversified their product line into the solar panel industry. The Roofscreen solar panel racking system can be scaled up easily, has a low parts count and ships with with drawings that are certified by a structural engineer. This racking system is geared towards commercial and industrial rooftops, which traditionally have obstacles such as vents and drains. The Roofscreen due to its height can clear the typical obstacles other racking systems can’t therefore increasing the space solar panels can be installed on top of commercial and industrial roofs. One of the nicest features is if the roof needs to be repaired in the future, the Roofscreen can be completely or partially dismantled and reinstalled at a later time. There are multiple waterproof roof flashing made for the most common commercial and industrial roofs. When working with Roofscreen, not only do you get the solar panel racking product but a service of AutoCAD designing to the unique specifications of your roof is also included when you order a Roofscreen solar panel mounting system. The Roofscreen can also be used in high wind speeds, the design of the system makes the system stronger when the wind load is high. Lately many new products are being introduced in the commercial and industrial solar panel mounting market. Why do you think this...

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Intergrated Inverter DC/AC Disconnects

Disconnects for safety reasons rapidly disconnect from a power source. Disconnects are on / off switches and are required by National Electrical Code (NEC). With a solar power system for your system to pass inspection and meet all UL and NEC requirements your system must have a DC/AC Disconnects. Over the last few years inverter manufactures have been integrating dc, ac or DC & AC disconnects right into the inverter or as an external unit. Many inspectors are familiar with integrated DC / AC disconnects which is a good sign of the wide acceptance. The picture above shows a SMA Sunny Boy Inverter with an integrated disconnect, a knob style switch quickly shuts off the power in case of an...

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Buying a Small Wind Electric System

Are you thinking about purchasing a small wind power system? Small wind energy systems are the fastest growing form of distributed power generation systems. Many people considering to power their homes or businesses are not familiar with a wind power system don’t even know the right questions to ask to make an educated decision. The California Energy Commission (CEC) has a free consumer’s guide called Buying A Small Wind Electric System which focuses on grid tie wind electric systems to ease the decision making process for many consumers shopping for wind turbines. I think the most important part of the guide is the zoning, tower height and permitting issues which is covered in the guide, many consumers get stuck in the permitting process I have encountered while helping people install their wind power systems. Another important tip the guide mentions is you have to talk to any neighbor 500 feet away from your property who maybe able to see your wind turbine to mitigate the risk of issues with neighbors after the wind power system has been...

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PanelClaw makes mounting solar on a flat roof a snap.

PanelClaw, a manufacturer of solar panel mounting systems, has launched a new product line called the Polar Bear. The Polar Bear is a easy to install non-rail based, ballasted mounting system that is designed to save money and time for everyone involved in the installation process. Polar Bear mounting system was independently tested in a wind tunnel at the Colorado State University and was beta tested at three large scale commerical installations, so the product has some real world field testing under it’s belt. Three people can install 16 solar panels under 20 mintues with the Polar Bear mouting system. The slip sheets and ground lugs come pre-installed which saves time in the installation process. Best of all this innovative solar photovotaic mounting system is made in the good ole...

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Why efficiency is key on deciding what solar panel to buy.

As more solar panel producers enter the market, consumers are confused on what brand to buy. What should you look for when purchasing solar panels to power your home or small business? Not all solar panels are created equal, efficency matters! If you are a homeowner with limited roof space, well you should care more about efficiency more then anyone. The more efficient the solar panel, the more watts you generate per square foot, that’s the bottom line. Sanyo Solar Panels are highly efficient and this is why we like them, because you produce more electricity with every panel. Even though Sanyo’s are priced at a premium compared to value or cheap solar panels, the return on investment is much quicker on a Sanyo system because of the efficiency. So the first thing to do when comparing two brands of solar panels is to look at the specifications sheets and compare the efficiencies, you will be surprised how much more efficient premium panels are. What do you think are highly efficent panels always worth it or is it better to go with more cheaper...

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