A Giant Floating Duck That Generates Solar Power—Because, Why Not?

A group of artists, scientists and engineers have proposed a novel solution to help Copenhagen's achieve its goal of becoming a carbon-neutral city: a 12-story-high solar energy farm in the shape of a duck. Energy Duck is the brainchild (brainduckling?) of the  Land Art Generator I nitiative  (LAGI), which designs public art installations that also function as utility-scale clean energy generators. So, why a duck? According to LAGI: The common eider duck resides in great numbers in Copenhagen; however, its breeding habitat is at risk from the effects of climate change. Energy Duck takes the form of the eider to act both as a solar collector and a buoyant energy storage device. Solar radiation is converted to electricity using low cost, off-the-shelf PV panels. Some of the solar electricity is stored by virtue of the difference in water levels inside and outside the duck. When stored energy needs to be delivered, the duck is flooded through one or more hydro turbines to generate electricity, which is transmitted to the national grid by the same route as the PV panel-generated electricity. Solar energy is later used to pump the water back out of the duck, and buoyancy brings it to the surface. The floating height of the duck indicates the relative cost of electricity as a function of citywide use: as demand peaks the duck sinks.  

Britain Is Solar-Energy Hot Spot

Britain, a land of cloudy skies and reliable rain, is fast becoming the hottest spot in Europe for many investors in solar energy. Germany is overcrowded with panels. A sudden end to subsidies killed Spanish solar. A sluggish economy is dragging on Italy. But the U.K. has benefited from a combination of stable subsidies since 2011, public support for solar, amenable planning authorities and creative finance. In 2010, there were under 100 megawatts of solar capacity in the U.K.—barely enough to power the homes of a modest town. Now, there is between 3.2 and 4 gigawatts. This year, market-research firm Solarbuzz projects that the U.K. will overtake Germany as Europe's largest installer of solar panels, putting in 6% of the world's new solar.

Fixed-Tilt System vs. Single-Axis Tracker O&M Comparison

As PV plants come out of warranty from the installer, an understanding of what needs repair, when, and how to do it is just as important as what equipment was selected and how it was installed.

Vertical-axis, Magnetically Levitated AND Magnetically Powered Wind Turbine Technology

Regenedyne has invented a magnetic levitation system, that when combined with the advanced aeronautics, eliminates the wobble issue and allows for a smooth, near frictionless, rotation.

TOP 5 Renewable Energy Crowdfunding Platforms.

The five platforms listed below are the top leaders in renewable energy crowd funding, based on the money they have raised so far.

Grid-connected Flywheel Energy Storage Facility

Temporal Power flywheels are used for short term energy balancing on the power grid.

Most Popular Alternative Energy Articles: Jan - July 2014

Here are some of the more popular articles so far this year --- a wide range of alternative energy topics.

The Future of Solar is Written in its Past

The PV pioneers and solar veterans made the future possible, but we couldn't imagine what it would look like. The young now own it, and they have no doubts about where it is going, and what they have to do to get it there.

Renewable Packaging

It's important to decrease the environmental impact by reducing the size of the packaging, switching to renewable raw materials, reusing materials, and finally, recycling materials for later use.

Multi-Function Meets Multi-Discipline

Product development in a shifting solar market shows "onshoring" makes sense

The Clean Energy Alchemists

Ontario, Canada, companies transform wind, sunshine and even sawdust into green power

Panasonic and Tesla Sign Agreement for the Gigafactory

Panasonic Corporation and Tesla Motors, Inc. have signed an agreement that lays out their cooperation on the construction of a large-scale battery manufacturing plant in the United States, known as the Gigafactory.    According to the agreement, Tesla will prepare, provide and manage the land, buildings and utilities. Panasonic will manufacture and supply cylindrical lithium-ion cells and invest in the associated equipment, machinery, and other manufacturing tools based on their mutual approval. A network of supplier partners is planned to produce the required precursor materials. Tesla will take the cells and other components to assemble battery modules and packs. To meet the projected demand for cells, Tesla will continue to purchase battery cells produced in Panasonic's factories in Japan. Tesla and Panasonic will continue to discuss the details of implementation including sales, operations and investment.  The Gigafactory is being created to enable a continuous reduction in the cost of long range battery packs in parallel with manufacturing at the volumes required to enable Tesla to meet its goal of advancing mass market electric vehicles. The Gigafactory will be managed by Tesla with Panasonic joining as the principle partner responsible for lithium-ion battery cells and occupying approximately half of the planned manufacturing space; key suppliers combined with Tesla's module and pack assembly will comprise the other half of this fully integrated industrial complex. 

More Utilities Are Shifting to Renewable Energy, Ceres Report Finds

The “new reality” facing electricity consumers and their utility companies is that renewable energy is meeting an increasingly larger share of U.S. energy needs, according to a report released this month from Ceres and Clean Edge.   That translates into more and better choices and a clean energy future.   “Renewables — including wind, solar, biomass, geothermal, waste heat and small-scale hydroelectric — accounted for a whopping 49 percent of new U.S. electric generating capacity in 2012, with new wind development outpacing even natural gas,” writes Jon Wellinghoff, partner at Stoel Rives LLP and former chairman of the Federal Energy Regulatory Commission in the report.   “Benchmarking Utility Clean Energy Deployment: 2014,” the first report from Ceres in partnership with Clean Edge on this subject, ranks the nation’s 32 largest electric utilities and their local subsidiaries on their renewable energy sales and energy efficiency savings. cont'd.

China Solar Projects Poised to Fuel Panel Price Rebound

The expected recovery in China, which accounts for more than 60 percent of global solar panel output, offers an early sign that manufacturers are succeeding in soaking up supply by building their own projects. The government’s push to promote developments closer to regions where electricity is needed most -- so-called distributed solar projects -- may also spur orders. Panel prices in China declined about 10 percent in the first six months of the year compared with the second half of last year, according to Bloomberg New Energy Finance. Higher tariffs imposed in the U.S. have had the opposite affect to what’s happened in China. Panel prices have increased about 15 percent since early June when the U.S. decided to apply preliminary duties on Chinese solar equipment imports, according to a global measure of panel prices. The U.S. Commerce Department acted again on July 25, proposing expanded penalties on some Chinese solar-energy imports in a victory for the U.S. unit of SolarWorld AG, which accused China of shifting production to Taiwan after it lost an earlier case.

The Coming Storage Boom: Project Proposals Nearly Double California's Storage Target

California’s push to transform the market for grid-scale energy storage is working even better than expected -- at least on paper.   Last year, California created a mandate calling for 1,325 megawatts of energy storage projects by 2020, to be scaled up every two years. The first installment of proposals due this year adds up to 200 megawatts.   As of mid-2014, more than 2,000 megawatts of energy storage projects have applied to interconnect with the state’s grid, according to recent data from state grid operator California ISO (PDF). In other words, project developers have received the market signal of a 1.3-gigawatt mandate and proposed enough storage to provide nearly double that amount over the coming years.   The list includes 1,669 megawatts of standalone battery storage, 44 megawatts of other standalone storage, 255 megawatts of batteries combined with generation projects, and a 90-megawatt project combining solar and batteries. They are all seeking interconnection under the initiative's “Cluster 7” window, which closed on April 30, 2014. (A project-by-project breakdown of all the applications is available in PDF.)

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