Making Solar Panels in China Takes Lots of Dirty Energy

Manufacturing solar panels can be a dirty business, from the mining of raw materials to the chemical-laced process of purifying silicon to the assembly of silicon wafers.   Solar energy is a renewable source, of course, but it’s essential to examine the full supply chain to gauge its total environmental impact. One potential concern is the use, containment, and disposal of toxic chemicals. Another is the energy-efficiency of the manufacturing process and the source of the energy used.   Researchers at Northwestern University and the U.S. Department of Energy’s Argonne National Laboratory recently examined the solar panel production process in different locations and published their findings in the July issue of the journal Solar Energy. “We estimated that a solar panel’s carbon footprint is about twice as high when made in China and used in Europe, compared to those locally made and used in Europe,” says Fengqi You, a co-author of the paper and an assistant professor of chemical and biological engineering at Northwestern. “While it might be an economically attractive option to move solar panel manufacturing from Europe to China, it is actually less sustainable from the life cycle energy and environmental perspective.”   The primary differences, the researchers found, are the less stringent enforcement of environmental regulations in China coupled with the country’s more coal-dependent power sector. “It takes a lot of energy to extract and process solar-grade silicon,” says co-author Seth Darling. “And in China, that energy tends to come from dirtier and less efficient energy sources than it does in Europe.”

EPA Sets Draft Rule to Cut Carbon Emissions by 30% by 2030

The Environmental Protection Agency on Monday released a draft rule to regulate carbon emissions from hundreds of fossil-fired power plants across the U.S., the cornerstone of President Barack Obama's climate-change agenda. The proposed rule mandates that power plants cut U.S. carbon-dioxide emissions 30% by 2030 from levels seen in 2005, an aggressive target that marks the first attempt at limiting such pollution. The carbon framework seeks to strike a balance between what environmentalists want—an ambitious overall target—with what the utility industry wants—flexibility, a long compliance timeline and an earlier base-year calculation from which to meet the goal. Carbon emissions have dropped since 2005, making the overall reduction smaller than it would have been if the EPA had used a more-recent year for a baseline.

Unorthodox Forms of Alternative Energy

Not all of these technologies will make it out of the concept stage, and many are decades away from becoming practical. What may seem weird today might just be a reality in the future.

Powering NASA'S Off-grid Operations

Planetary Power's HyGen is a complete reinvention of the diesel generator that combines innovations in renewable energy, battery storage and engine efficiency for a robust power generation platform.

Energy from Agricultural Waste

Even a small farmer could join a co-op and get in on this trend. These co-ops are growing and are being promoted by organizations interested in furthering the cause of renewable energy.

The Smart Grid And Multifamily Dwelling Challenges

We need to apply good systems engineering principles to policy creation to address the benefits gaps that confront multifamily stakeholders today.

Survival Strategies in the Atacama Desert: Chilean Lithium Miners Manage by Playing the Regs

Lithium is an essential component of batteries for small electronics and large electric vehicles as well as for materials for the housing and construction industry. In this interview with The Mining Report, economist Daniela Desormeaux, founder of signumBOX and widely quoted expert on industrial chemicals, shines a light on the lithium industry for investors looking for a new opportunity.

Energy Star Certified Homes in the US

Texas leads the ENERGY STAR certified homes in 2013 and continuing its leading position in Q1 2014.

U.S. Residential Solar PV Installations Exceeded Commercial Installations for the First Time in Q1 2014

Driven by strong year-over-year growth in the utility and residential markets, the United States installed 1,330 megawatts of solar photovoltaics (PV) in the first quarter of 2014. According to GTM Research and the Solar Energy Industry Association’s (SEIA) Q1 2014 U.S. Solar Market Insight Report , the U.S. installed 232 megawatts of residential PV, exceeding the non-residential (commercial) market’s 225 megawatts for the first time in the history of the report. Ongoing strength in the residential sector and volatility in the non-residential market spurred this historic milestone. Despite the dip in non-residential installations, GTM Research and SEIA expect the market to rebound and exceed the residential market in 2014 annual PV installations. In another significant development, Q1 2014 was the largest quarter ever for concentrating solar power (CSP) due to the completion of the 392 megawatt (AC) Ivanpah project and the Genesis Solar project’s second 125 megawatt (AC) phase. With a total of 857 megawatts expected to be completed by year’s end, 2014 is on pace to be the largest year for CSP in history. “Solar accounted for 74% of all new U.S. electric capacity installed in Q1 2014, further signaling the rapidly increasing role that solar is playing in the energy market,” said Shayle Kann, Senior Vice President at GTM Research. “Expect to see a resurgence in the non-residential market, combined with continued incremental residential growth, throughout the rest of this year.” Not to be outshone by the success of the residential sector, the utility PV market continued its dominance, growing 171% between Q1 2013 and Q1 2014. With 873 megawatts installed, it accounted for two-thirds of total installations during the quarter. Large-scale projects that were under contracts and negotiations between 2010 and 2012 are now becoming a reality.

EnerVault unveils 'flow battery' for solar energy storage

In an almond orchard outside Turlock in the Central Valley, two large tanks hold water, minerals - and more importantly, energy. The tanks in Stanislaus County are part of a "flow battery" that stores energy from nearby solar panels. It's the largest battery of its kind in the world. And it could play a role in California's push to develop bigger and better ways to store large quantities of energy. This particular flow battery, unveiled to the public Thursday during a ceremony with state and federal officials, was built by EnerVault of Sunnyvale, part of the Bay Area's fast growing energy-storage industry. Like most of its competitors, EnerVault is young, founded in 2008, with about $30 million in venture funding to date. Some companies try to perfect the lithium-ion batteries found in laptops and electric cars. Others, including EnerVault and Primus Power of Hayward, specialize in flow batteries, which store energy in tanks of electrolytes. The fluid is then pumped through the battery's cells when power is needed. In contrast, the batteries found at a grocery store contain the electrolyte, cathode and anode all in one package. "Flow batteries are batteries turned inside out," said Jim Pape, EnerVault's chief executive officer. His company's flow batteries use iron and chromium, blended into the water inside its tanks. Both materials are safe to handle. (For those of you thinking "Erin Brockovich," EnerVault uses the kind of chromium found in multivitamins, not the infamous hexavalent chromium featured in the movie). Iron and chromium also have the benefit of being cheap.

Nearly 5,600 Clean Energy Jobs Announced In First Quarter, Down From Same Period In 2013

Congressional inaction on key clean energy tax policies, coupled with attacks on state renewable energy programs, led to a dramatic decline in clean energy job announcements in the first quarter of this year, according to the latest report from the nonpartisan business group Environmental Entrepreneurs (E2). About 5,600 clean energy and clean transportation jobs were announced in the first three months of this year, down from 12,000 such jobs reported in the comparable period in 2013. A major geothermal project in  Idaho  accounted for the most clean energy jobs announced on the state level in the first quarter. Idaho  was followed by more traditional clean energy leaders. The remaining states in the Top 10 were:  Texas ,  California , Missouri ,  New York ,  Kansas ,  Arizona ,  Hawaii ,  New Mexico  and  Louisiana ..  Despite adding thousands of new jobs to the economy, the dramatic drop in clean energy and clean transportation job announcements in the quarter is a clear reflection of mixed signals American businesses  are getting from Capitol Hill and state capitals when it comes to policies such as the federal Production Tax Credit (PTC) and various state-level renewable energy standards (RES), according to E2.

Solar PV Module Shipments to Grow 30 Percent in 2014, According to NPD Solarbuzz

The top 20 module suppliers to the solar photovoltaic (PV) industry are guiding an increase in annual shipments of more than 30 percent in 2014, according to the latest NPD Solarbuzz Module Tracker Quarterly report. Leading Chinese module suppliers Trina Solar, Canadian Solar, ReneSola and Jinko Solar are forecasting the most aggressive growth in shipments during 2014, with the upper-end of guidance exceeding 40 percent.  "The top-20 module suppliers to the PV industry account for two-thirds of global shipments, and they provide the leading indicators of industry growth and pricing trends," noted Ray Lian, senior analyst at NPD Solarbuzz. "Assuming the leading suppliers achieve the forecasted growth rates, end-market demand in 2014 will approach 50 gigawatts."  Yingli Green Energy is forecasting the highest shipment volume in 2014, with the upper end of shipments at 4.2 gigawatts (GW). This shipment level would result in Yingli Green Energy heading the annual shipment rankings for PV suppliers for the third consecutive year.  Leading Japanese silicon-based PV module suppliers, Sharp Solar and Kyocera, are forecasting a 15 percent increase in shipments in 2014, reflecting continued strength in the Japanese solar PV market. Sharp Solar and Kyocera command strong market shares, within their domestic markets. 

Elon Musk sees nearly unlimited demand for energy storage

Tesla Motors CEO Elon Musk said Wednesday that the world will need to build several lithium-ion battery factories to meet a "quasi-infinite demand for energy storage." Speaking at the World Energy Innovation Forum, Musk said Tesla Motors alone needs its planned $5 billion lithium battery factory to continue the company's rapid growth. Without the proposed "gigafactory" the electric-car maker would lack the batteries it needs to ramp up car production and introduce new models, he said. "We're building the gigafactory because we can't think of any other way to scale," Musk told the energy forum at the company's factory in Fremont. "We either hit the sides of the Petri dish, or we build a bigger Petri dish." The forum, which focused on market-transforming ideas in energy, took place in a corner of the sprawling auto plant where Tesla makes its second car model, the Model S. The proposed gigafactory would double worldwide production of lithium-ion batteries, which could help lower battery production costs 30 percent just in its first year of full-scale operation. Tesla hopes to use those savings to create its $35,000 Gen 3 car, the company's first car aimed at the middle class.

U.S. Wind Industry First Quarter 2014 Market Report

The U.S. now has an installed wind capacity of 61,327 MW. There are over 13,000 MW currently under construction, an industry record.

Vocational Training for the Renewable Energy Industry

We are preparing our students for the careers of today and tomorrow. It may seem controversial to say but the truth is not everyone needs a college degree.

Records 706 to 720 of 2822

First | Previous | Next | Last

Featured Product

US Battery - Solar RE L16XC Renewable Energy Battery

US Battery - Solar RE L16XC Renewable Energy Battery

Our batteries have Xtreme thick plates with (XC Diamond Plate Technology) added to them. They have been designed for hours of heavy discharge each day, followed by a fast recharge during the daylight hours. Very few batteries can take the grueling deep discharge-recharge cycle every day for long periods of time. U.S. Battery has proven time and time again that our solar battery line can stand up to this type of battery torture day in and day out for years to come. When you demand reliable energy storage count on U.S. Battery every time!