From ThinkProgress: A new study by the NC Clean Energy Technology Center finds that in all but 4 of the 50 largest cities in the U.S., installing a fully-financed 5 kilowatt solar panel system makes more financial sense than investing in a popular stock market index fund. Further, the same system would beat the costs of buying energy from local utilities in 42 of those 50 cities. “(S)olar is now not just an option for the rich, but a real opportunity for anyone looking to take greater control over their monthly utility bills and make a long-term, relatively low-risk investment,” concludes the study which was done under funding by the U.S. Department of Energy. A key qualifier in this good news study is that the benefits of installing residential solar photovoltaic systems are greatest when homeowners finance the systems (at an assumed annual interest rate of 5 percent) rather than buying them upfront. And the study does not investigate the availability of such loans. The study finds that in upfront purchases of solar, residents in just 14 out of the 50 largest U.S. cities would pay less for electricity than if they buy from their local utility. That upfront investment would be a better investment than the broad stock market index fund in 20 of the 50 cities. Cont'd....
IHS Technology analysts top 10 predictions for the 2015 global photovoltaic (PV) market
Rather than focus on any one particular technology, the EFST training course educates the participants about the common technologies and service requirements that touch multiple markets, most notably the solar and electric vehicle charging equipment infrastructure.
The PV Racking clamp-free rail was a great solution for this carport, as it helped to eliminate rain water leaking through the arrays in comparison to a traditional clamp-based system.
The United Kingdom blew past previous wind power records in 2014 while Germany generated a record amount of electricity from wind in December, setting the stage for 2015 to bring more industry growth across Europe. Exactly how quickly it grows, however, is contingent upon several political and regulatory decisions to come. Using statistics from the U.K.’s National Grid, the trade association RenewableUK found that wind generated enough electricity to power just over 25 percent of U.K. homes in 2014 — a 15 percent increase from 2013. Wind turbines provided 9.3 percent of the U.K’s total electricity supply last year, a 1.5 percent boost from 2013. “It’s great to start 2015 with some good news about the massive quantities of clean electricity we’re now generating from wind,” said RenewableUK’s Deputy Chief Executive Maf Smith. In December, Germany generated more wind power, 8.9 terawatt-hours, than in any previous month. According to the IWR renewable energy research institute, this record will be overtaken in 2015 as more offshore wind farms come online.
Some people complain that solar panels and wind turbines are so unattractive, they’d prefer not to see them at all. To them we offer New Wind, alternative energy generators that look like trees. The 36-foot-tall steel structure is perfect for urban environments, where a conventional wind turbine might not fit. Seventy-two artificial leaves that work as micro-turbines adorn the branches and spin silently on a vertical axis. Cables and generators have been integrated into the leaves and branches in a way that puts them out of sight and sound. The beautiful and functional device is the brainchild of French entrepreneur Jérôme Michaud-Larivière, who said the idea for a tree-inspired wind generator came to him one day while sitting in a square, watching the leaves on nearby trees tremble in a breeze. He wondered if energy could be generated in a similar way. Indeed, it can. At the moment, each tree has a power output estimated at 3.1 kW.
South Korean PV module manufacturer SolarPark Korea has supplied modules to the first floating solar PV power plant in the country, the prototype Sunflower Solar Power Plant, which uses a tracking and rotating system. According to SolarPark Korea, the tracking system rotates the PV plant so that the modules face the most sun throughout the day. As the facility floats on water, it does not take much energy to do this, just a small amount of power being used from the plant for the rotation of the entire system. It is a 465 kWp system and around 8,000 square meters in size. SolarPark Korea supplied 1,550 72-cell multicrystalline modules for the test project. The cooling effect of the water on the modules should prove to show an additional 10% increase in energy production — when compared to a ground-mounted system. Such floating PV power plants do other things as well. They reduce algae growth, for example. Additionally, they have the ability to merge as hatcheries for fish inhabiting the area. Due to the easy rotation and the resulting exposure to maximum sunlight, the Sunflower Solar Power Plant’s production efficiency is 22% higher than a comparable ground-mounted PV plant.
Some of the most important innovations happening in energy today are happening far from the national media headlines. But these small changes will go a long way to making power more reliable, competitive, and local, with solar energy playing a central disruptive role that could dominate energy in the next century. One of those moves happened yesterday, when SunPower bought a $20 million stake in Tendril and agreed to license its Energy Services Management Platform software. Here's what the deal means over the next few years. At its core, Tendril is essentially an energy data company. It collects and analyzes data about consumers' energy usage patterns, primarily learned from partnerships with utilities. SunPower can use this data in its installations to optimize a home's renewable energy consumption, provide stored energy when it's needed, adapt to changing policies for solar, and even improve sales by finding its ideal customers. You can think of SunPower's capabilities with Tendril as a piece of the home of the future. SunPower will provide local energy production with solar panels, and with energy storage and connected devices SunPower can intelligently plan energy production and consumption based on consumers' desires. If a consumer wants to consume as little energy as possible the system can be set for that, just as it could be set to consume as much of your own energy production, or optimize for cost if there are rewards for sending energy to the grid at peak times. All of this will work in the background, similar to a car's eco mode, but it'll work to make energy more dynamic and controllable for consumers.
The Commerce Department began closing a chapter in a protracted trade conflict with China over solar equipment Tuesday, approving a collection of steep tariffs on imports from China and Taiwan. The decision, intended to close a loophole that had allowed Chinese manufacturers to avoid tariffs imposed in an earlier ruling by using cells — a major module component — made in Taiwan, found that the companies were selling products below the cost of manufacture and that the Chinese companies were benefiting from unfair subsidies from their government. The department announced anti-dumping duties of 26.71 percent to 78.42 percent on imports of most solar panels made in China, and rates of 11.45 percent to 27.55 percent on imports of solar cells made in Taiwan. In addition, the department announced anti-subsidy duties of 27.64 percent to 49.79 percent for Chinese modules. “These remedies come just in time to enable the domestic industry to return to conditions of fair trade,” said Mukesh Dulani, president of SolarWorld Americas. “The tariffs and scope set the stage for companies to create new jobs and build or expand factories on U.S. soil.” But others in the industry were quick to criticize the ruling.
The report forecasts the U.S. to install 6.5 GW of PV in 2014, a 36 percent increase over the historic 2013.
This discussion poses the important question, "What are the considerations and tradeoffs of both designs - 1500 volt vs 1000 volt with distributed electronics - and which should you choose?"
This partnership marks an important milestone in the quest to significantly broaden the availability of affordable, local clean energy production to residential and commercial ratepayers.
Such a multi-pronged approach to develop the new and existing cities would yield to a sustainable environment within Asian cities.
Today, despite recent progress, solar power accounts for about one percent of the world’s energy mix. Yet the International Energy Agency (IEA) says that solar energy, most of it generated by decentralized “rooftop” photovoltaic systems, could well become the world’s single biggest source of electricity by mid-century. So how do we get from here to there? The answer, according to scientists and engineers, lies in a new generation of super-efficient, low-cost sunlight harvesters that take up where the recent flood of cheap silicon panels leaves off. New designs and novel solar materials have recently been setting new efficiency records seemingly every week. Although research and development of solar power still falls far short of where scientists and engineers say it needs to be, innovators are making steady progress in creating a new generation of materials that can harvest the sun’s energy far more efficiently than traditional silicon photovoltaic cells. Among the most promising technologies are multi-junction cells with layers of light-harvesters that each gather energy from a separate slice of the solar spectrum, super-efficient semiconductor materials like perovskite and gallium-arsenide, and cells made with tiny but powerful solar-absorbing “quantum dots.” Technical hurdles, such as making new materials able to withstand the elements, remain. Nonetheless, researchers say, efforts now underway could begin to dramatically increase solar power generation within a decade or two. Cont'd...
During the past 2 years, more flexible sourcing strategies across the wind power supply chain have resulted in cost reductions, enabling greater geographic market access while reducing risk and ensuring profitability for wind turbine vendors and their partners in the component value chain. Overcapacity, however, persists in most, though not all areas of the supply chain, providing purchasers with more choice, flexibility, and cost control. According to a new report from Navigant Research, while demand in 2014 is projected to be less than 47,000 megawatts (MW), annual turbine manufacturing capacity, according to vendor estimates, is likely to exceed 71,000 megawatts MW. "Oversupply is allowing wind turbine manufacturers to more easily adjust what components they produce in-house, what is outsourced, and when a blend of both is advantageous for cost, technological, or geographic reasons," says Jesse Broehl, senior research analyst with Navigant Research. "Although many manufacturing facilities are running at less than full capacity, product innovation, lean manufacturing, and outsourcing are resulting in a highly competitive wind industry ready for the challenges of today's and tomorrow's wind markets." Blades are a particularly strong area of strategic product evolution and sourcing shifts, according to the report. Turbine manufacturers are making major, capital-intensive investment changes in how blades are designed, what materials are used, the manufacturing processes behind them, and what companies they source from.
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Solar & Wind - Featured Product
You haven't installed a tile mount that is easier to install than the Solar Tile Mount manufactured by TRA Snow and Sun. Solar Tile Mount is used on all tile roof profiles: flat, mid, and high. It is made in the USA of aluminum alloy for strength and excellent corrosion resistance. Solar Tile Mount is built to allow more ease in installation with more rise from the tile surface to the rail for better air flow below panels. The adjustable base is longer than most allowing attachment 6" to the left or right to have the bracket in the base of the pan of the tile and still fasten to the rafter. Solar Tile Mount is adjustable for counter batten systems from ¾" to 3". The horizontal rail is directly above base fasteners giving greater uplift resistance than any other system. For superior waterproofing apply TRA Snow and Sun's butyl backed VersaFlash aluminum flashing. No tile flashing is needed on top of the tile for greater labor and material cost savings.