Could uphill train tracks solve the problem of energy storage?

James Murray for BusinessGreen:  is commonly regarded as a green form of travel, typically boasting lower levels of carbon emissions and air pollution than road transport, but could it also serve to deliver a cleaner and more resilient power grid? That is the hope of innovative US start up Advanced Rail Energy Storage, LLC, which yesterday announces it has secured a crucial right-of-way lease from the Bureau of Land Management (BLM) to develop its planned 50MW gravity-based energy storage project. The ARES Nevada project uses the same principles as pumped hydroelectric energy storage projects, but instead of relying on water in a water-stressed region it plans to make use of an inclined rail track and generator locomotive cars that will run along it.   Cont'd...

Tesla Discontinues 10-Kilowatt-Hour Powerwall Home Battery

Julia Pyper for GTM:  Tesla has quietly removed all references to its 10-kilowatt-hour residential battery from the Powerwall website, as well as the company’s press kit. The company's smaller battery designed for daily cycling is all that remains. The change was initially made without explanation, which prompted industry insiders to speculate. Today, a Tesla representative confirmed the 10-kilowatt-hour option has been discontinued. "We have seen enormous interest in the Daily Powerwall worldwide," according to an emailed statement to GTM. "The Daily Powerwall supports daily use applications like solar self-consumption plus backup power applications, and can offer backup simply by modifying the way it is installed in a home. Due to the interest, we have decided to focus entirely on building and deploying the 7-kilowatt-hour Daily Powerwall at this time." The 10-kilowatt-hour option was marketed as a backup power supply capable of 500 cycles, at a price to installers of $3,500. Tesla was angling to sell the battery to consumers that want peace of mind in the event the grid goes down, like during another Superstorm Sandy. The problem is that the economics for a lithium-ion backup battery just aren’t that attractive.   Cont'd...

Lead Recycling Threatened By Lithium-ion

The U.S. Society of Automotive Engineers (SAE) and the International Electrotechnical Committee (IEC) are proposing to develop standardized labels that are color-coded to allow for better identification between lead-acid and lithium-ion batteries.

The Road to Sustainable Energy in South America Could Lie in Electrical Grid Interconnection

With interconnection, the sizable hydroelectric resources of South America would allow a highly stable supply of low-cost energy at the regional level, enhancing competitiveness.

The Potential of Battery Storage Solutions for Domestic and Commercial PV Installations

The developments in battery storage systems being launched to the UK market this year will help to distribute energy more efficiently, and with the PV market in a state of flux following the reductions in the tariff rates, the battery storage developments should provide some stability to the trade.

GE has figured out how to make solar power batteries using greenhouse gasses

Brad Reed for BGR:  We typically think of carbon dioxide as an unhealthy byproduct of our over reliance on fossil fuels. But what if CO2 could be used to help us move away from fossil fuels and toward renewable energy sources? GE Global Research has been working with the U.S. Department of Energy to come up with a way to use excess carbon dioxide produced by power plants to store extra solar power and deliver it back to the grid for later use. There are two major components to this solar power storage system: The first component captures solar energy and keeps it stored in molten salt, while the second component takes surplus electricity from the grid to cool off carbon dioxide to the point where it becomes dry ice. To keep the solar energy stored, the molten salt will then be released into the CO2, which will act as a battery capable of deploying power when needed. The CO2-molten salt mixture will then flow through a specially designed CO2 turbine that GE says “can generate as much as 100 megawatts of ‘fast electricity’ per installed unit.” The advantage of this system is that these turbines would be able to operate at night when there’s no solar power being directly absorbed.   Cont'd...

Cree And Cisco Enable Energy-Saving IoT

SmartCast PoE is the first LED lighting platform that makes the PoE framework ready for mass deployment and adoption.

After record year, U.S. energy storage forecasted to break 1 GW capacity mark in 2019

Peter Maloney  for UtilityDive:  The U.S. energy storage market put in a strong showing in 2015 with its “best quarter and best year of all time,” according to the GTM/ESA report. And current market trends point toward continued strong growth. The recent extension of the federal Investment Tax Credit, and new guidelines under consideration at the Internal Revenue Service are expected to further boost energy storage and the pairing of storage with renewable resources. In the fourth quarter alone, the U.S. deployed 112 MW of storage capacity, representing more than the total of all storage deployments in 2013 and 2014 combined. For the full year, 221 MW (161 MWh) of storage was installed. In 2014 65 MW (86 MWh) of storage was installed in the U.S.   Cont'd...

Electric Car War Sends Lithium Prices Sky High

The lithium oligopoly is already a dinosaur, and new lithium projects on highly prospective land forwarded by companies with lower market caps and strong management are what investors will be looking for.

Sparking an Energy Revolution: Artificial photosynthesis in Fuel Cells a Promising New Discovery

Recently, there have been many boosting developments in the conception of new methodologies for generating hydrogen for fuel cells without resorting to fossil fuel as support.

Here's How Electric Cars Will Cause the Next Oil Crisis

Tom Randal for Bloomberg Business:  With all good technologies, there comes a time when buying the alternative no longer makes sense. Think smartphones in the past decade, color TVs in the 1970s, or even gasoline cars in the early 20th century. Predicting the timing of these shifts is difficult, but when it happens, the whole world changes. It’s looking like the 2020s will be the decade of the electric car. Battery prices fell 35 percent last year and are on a trajectory to make unsubsidized electric vehicles as affordable as their gasoline counterparts in the next six years, according to a new analysis of the electric-vehicle market by Bloomberg New Energy Finance (BNEF). That will be the start of a real mass-market liftoff for electric cars. By 2040, long-range electric cars will cost less than $22,000 (in today’s dollars), according to the projections. Thirty-five percent of new cars worldwide will have a plug.   Cont'd...

Generating Energy with Graphene

Everyday researchers discover new applications for the properties of graphene. The future of graphene holds limitless possibilities from generating energy to literally every corner of industry and manufacturing. As the years pass it will likely become as commonplace as plastic.

How Battery Power Sustains Wind-Blown and Sun Struck Grids

Utilities are turning to energy storage systems (ESS) to help power grids withstand the effects of high peak demands, instability and the unpredictability of energy that can be gone with the wind.

Energy-Storage Startup LightSail Plots Long-Term Game Plan

Barbara Haislip for the Wall Street Journal:  Few industries are more daunting for entrepreneurs these days than clean energy. Developing the technology and hardware is expensive, and setbacks are common. Even if all goes well, getting a product to market can take a decade or more. Most venture-fund investors, meanwhile, want a quicker payout. Danielle Fong, co-founder and chief scientist of LightSail Energy, is trying to keep investors happy while working toward some ambitious clean-energy goals. Her company’s aim, she says, “is to produce the world’s cleanest and most economical energy-storage system” through a technology that uses compressed air to store energy from the grid. LightSail’s technology will do this more efficiently than other solutions, Ms. Fong says, by capturing some of the excess heat that comes when compressing air.  “Until now, this was wasted, reducing efficiency,” she says. Founded in 2009, Berkeley, Calif.-based LightSail has raised $70 million from several investors, including Bill Gates, Peter Thiel,Khosla Ventures and the French energy giant Total.   Cont'd...

Apple leftovers key for future energy storage

By Tereza Pultarova for E&T:  German researchers have developed a new carbon-based active material that can be manufactured from apple leftovers and used to build better energy storage systems. The apple-based material can be used as the negative electrode in sodium-ion batteries, which are currently being researched as a more environmentally friendly and cheaper alternative to lithium-ion batteries. Instead of energy-intensive lithium mining, which frequently damages the environment, battery manufacturers in future could be using organic waste to make batteries. In tests, the new material discovered by researchers from the Helmholtz Institute Ulm of Karlsruhe Institute of Technology, has demonstrated ‘excellent electrochemical properties’, allowing the researchers to carry out 1000 charge and discharge cycles during which the apple-based battery demonstrated high stability as well as capacity.   Cont'd...

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