Business Could Save $173m with Compressed Air Improvements

From Environmental Leader, January 27, 2012

Air compressors present a variety of opportunities for saving energy, from leak reduction and air intake improvements, to maintenance, monitoring, specification and design, according to guidance from the Carbon Trust.

Of the total energy supplied to a compressor, as little as 8 to 10 percent is converted to usable energy at point of use, making it a very inefficient and expensive way of transferring energy. The Carbon Trust says businesses in the U.K. could save up to £110 million a year ($173 million) by taking simple actions, at little or no cost, to improve compressed air systems and processes.

The trust says that compressed air can be up to 30 percent of a facility’s energy use, with frequent users of compressed air including companies in aircraft and auto manufacturing, cement, ceramics, chemicals, electronics, engineering, food and drink, foundries, glass, insulation materials, minerals, paper and board, pharmaceuticals, power generation, rubber and plastics, steel, textiles, tobacco and water treatment.

Some of the opportunities for improvement are:

Read the complete article at Environmental Leader

New Game to Raise Awareness of Energy

ScienceDaily (Dec. 11, 2011) — An energy quiz which tests people’s knowledge of the amount of energy used by various devices and processes, such as leaving the lights switched on the Christmas tree, has been developed by researchers at the University of Southampton.

A team led by Dr Alex Rogers at the University’s ECS — Electronics and Computer Science, developed The Energy Quiz, a “game with a purpose” for BT to challenge its employees to test their knowledge about energy and ECS and will launch a new version on 12 December. The online quiz, which can be found at: http://www.energy-quiz.org invites players to compete and to answer 12 questions about energy comparisons. For example, it asks: which uses more energy a Christmas tree with 100 lights continuously lit over the festive period or a dishwasher used once a week for month; or it compares heating water for a typical office for a year with a full Boeing 747 flying 400 miles with heating a typical office for a day versus driving a car 100 miles. BT has invited 200 employees to play the game and will roll it out to a further 3,500 in the next phase.

Read the complete article at Science News

DOE Releases New Version of EnergyPlus Modeling Software

The U.S. Department of Energy (DOE) today released the latest version of its building energy modeling software EnergyPlus, which calculates the energy required to heat, cool, ventilate, and light a building. EnergyPlus is used by architects and engineers to design more efficient buildings, by researchers to investigate new building and system designs, and by policymakers to develop energy codes and standards. The advanced physics calculations within EnergyPlus allows it to model a wide range of residential and commercial buildings and HVAC system types, including passive building designs and low-energy systems. EnergyPlus v7.0 features many enhancements including:

  • 25%-40% faster execution speeds on a wide variety of models. Up to 500% improvements are possible on models using airflow networks
  • Improved modeling of ventilation rate procedures and a new thermal comfort report, both based on ASHRAE Standard 62.1
  • New equipment performance data sets for packaged rooftop air-conditioners and heat pumps
  • New model for variable refrigerant flow heat pump air-conditioners
  • Extensions to the Energy Management System (EMS) and Runtime Language
  • Updated utilities.

Full story

Affordable Solar Energy – Not Out of Reach

It’s time to stop thinking of solar energy as a boutique source of power, says Joshua Pearce.

Sure, solar only generates about one percent of the electricity in the US. But that will change in a few years, says Pearce, an associate professor of electrical engineering and materials science at Michigan Technological University. The ultimate in renewable energy is about to go mainstream.

It’s a matter of economics. A new analysis by Pearce and his colleagues at Queen’s University in Kingston, Ontario, shows that solar photovoltaic systems are very close to achieving the tipping point: they can make electricity that’s as cheap—sometimes cheaper—as what consumers pay their utilities.

Here’s why. First, the price of solar panels has plummeted. “Since 2009, the cost has dropped 70 percent,” says Pearce. But more than that, the assumptions used in previous studies have not given solar an even break.

“Historically, when comparing the economics of solar and conventional energy, people have been very conservative,” says Pearce.

Read the complete article at Environmental Protection Online

Advanced Biofuels Industry Hunkers Down for Hard Times

Facing an uncertain future with biofuels policy under scrutiny, the advanced biofuels industry convened for a three day conference in San Francisco earlier this month. Jointly organized by Green Power Conferences and Biofuels Digest, the Advanced Biofuels Markets conference is one of the few industry events bringing together industry leaders from all shades of advanced biofuel interests – algae, cellulosic biofuels, advanced biodiesel, aviation biofuels, and others – as well as key public-sector stakeholders.

Coming off several years of steady industry growth but facing a difficult 2012, Advanced Biofuels Markets 2011 was tinged with exigency. With deficit reduction at the forefront of policy objectives for Congress, a reexamination of cornerstone policies supporting biofuels growth is expected. At risk of being scrapped altogether, the checkerboard foundation of biofuels policy initiatives spanning EPA, USDA, the Department of Energy (DOE), the Department of Defense, Treasury and others – including RFS2, Title IX programs under the Farm Bill, DOE loan guarantees, VEETC, etc. – may be placed on the chopping block one by one (or in the most dramatic scenario, slashed all at once).

What does this mean for an industry on the cusp of commercialization, but still a few nickels to several dollars shy of price parity with a gallon of petroleum fuel? For the most part, it adds a great deal of uncertainty, making an already difficult financing story even more risky for would-be investors. In the more extreme case, the sentiment among conference panelists was that the industry is now fighting for its future existence in the U.S.

The Lost Years

With an unresolved deficit crisis casting an ominous shadow over 2012, the coming year is shaping up to be challenging for advanced biofuel companies still navigating the funding “valley of death” and facing a particularly daunting scale-up challenge. Just as many advanced ethanol projects are beginning to break ground, a number of incentive and loan programs are likely to be nixed. Energy provisions in the 2012 Farm Bill are of primary concern. Programs, including USDA loan guarantees for biorefinery projects, Biomass Crop Assistance Program (BCAP), and Rural Energy for America Program (REAP), are all critical lifelines for an industry still looking to establish a foothold.

Addressing the so far undelivered promise of cellulosic biofuels – biofuels derived from the lignocellulose portion of plant matter – Alan Shaw, CEO of Codexis, explained that the technology is “late to its own party.” After lobbying for nearly a decade for R&D funding, inclusion in biofuels mandates, and subsidy parity with conventional biofuels, the cellulosic biofuels industry has received a great deal of support over the last couple of years. While not necessarily on equal footing with conventional (corn-based) ethanol, cellulosic biofuels were given a commercialization runway to 16 billion gallon by 2022 under the EPA’s RFS2 mandate. But only a few million gallons of cellulosic biofuels have been produced and the first facilities are still under construction, forcing policymakers to question the viability of the technology in the near-term.

The failure of cellulosic biofuels to capitalize on its opportunity thus far has led to increased attention to technologies such as pyrolysis and thermo-catalytic or advanced sugar fermentation. As a result, cellulosic biofuels – once the priority advanced conversion pathway for the DOE – are now finding it difficult to raise capital to support widespread scale-up. Many panelists at the conference concurred that it’s time to deliver or risk losing priority status among advanced biofuel conversion pathways.

In our Biofuels Markets and Technologies report, we forecast growth rates in the U.S. biofuels industry to lag behind other regions.

“Don’t Mess with the RFS”

Of particular concern among industry stakeholders at the conference is the battle to hold the line on the EPA’s RFS2 biofuels mandate, which aims to boost biofuel production in the United States through 2022. Although RFS2 has proved to be a complex rule to implement, it is one of the few mandates worldwide that carves out specific volume requirements for various biofuel conversion pathways.

While some in the advanced biofuels industry are calling for opening up the mandate to more advanced pathways (such as algae-based biofuels, waste-derived fuels, etc.), most warn that doing so would mean opening up the standard entirely, which could jeopardize its continued existence. In any case, within the broader battle for favorable treatment of advanced biofuels in Washington, RFS2 is seen as the last line of defense for an industry still struggling to gain a foothold.

Key Takeaways

To turn the corner on advanced biofuels commercialization, conference panelists urged producers to remain flexible with respect to feedstock and end-product. With policy up in the air, the ability to shift production to advanced chemicals, aviation biofuels, and ground transportation fuel depending on market forces and prevailing policy sentiment will make projects a far more attractive bet for skittish investors. Partnering, especially with oil majors, multinational chemical and consumer product companies, and other end-market players, is increasingly seen as the way forward in a challenging financing environment.

Mackinnon Lawrence is an analyst at Pike Research with a focus on advanced biofuels and bioenergy.

Biomass 2012: International Growth and Domestic Obstacles

In 2012, expect to see the continued development of the biomass industry in the European Union and other areas of the world. Currently, the U.S. leads the world in biomass power capacity, but that is beginning to change. The North American wood pellet industry has become a major supplier to the EU. The volume of EU-bound wood pellet shipments in 2010 was double that of 2008, with the Netherlands, the U.K. and Belgium leading the demand. From 2008 to 2009 the EU’s gross electricity production from biomass increased more than 10 percent, with Germany, Sweden and the U.K. leading the way. The U.K., in particular, is focusing its efforts on developing its biomass capacity. October saw the U.K. propose subsidies to business customers (to be followed by households after the program was established) who use renewable energy technology for heating. While the program’s rich subsidy was scaled back (from 2.7 pence per kilowatt hour (kWh) to 1 pence per kWh), the efforts show clearly that the political will is in place to continue to support the biomass industry. The U.K.’s proposals included as a key goal the development of “cheaper” renewable generation, focusing specifically on the conversion of coal plants to biomass and cofiring plants.

But the U.K. is not the only place to see recent movement in the biomass space that is expected to continue throughout 2012. India, Japan and Brazil have also added biomass power capacity with additional projects in development phases. In addition, biogas is expected to see significant growth in Italy, France and Spain. China, in particular, has set ambitious goals for its biomass industry. By 2015, China wants to have 13 gigawatts of biomass power capacity, which is a 160 percent increase from its 2010 capacity. This means China anticipates adding 500 to 700 biomass power plants by 2015. With a biomass reserve equivalent to 500 million tons of coal, from sources such as straw, algae, methane, fallen timber and manure, China may very well emerge as the new high-growth country in the biomass space.

The U.S. biomass industry is growing, though it will continue to face significant challenges during 2012. But first, some success stories. Several new biomass plants are under construction (not just in the development stage) including 100 megawatt (MW) plants in Texas and Florida and smaller 50 to 75 MW plants in New Hampshire and Florida. Several more plants are in the development phase, with construction expected to begin in 2012. Most of these plants are located in rural areas where jobs are needed the most. New plant construction and job creation will go a long way to garnering the political support needed to move the industry forward.

What the biomass industry can’t control is the price of natural gas and oil. Further, the inability to establish an acceptable definition of “biomass” has torn the industry’s focus away from developing its supply chain and establishing its presence as a cost-effective alternative to fossil fuels. In addition, we are seeing a shift toward investment in smart grid and energy efficiency technologies, which may result in a focus away from biomass projects, at least in the short term. Energy service providers are focusing more on smart grid technologies, as a result of commercial customer demand for real-time energy management capabilities, through the acquisition of battery storage and consumer-driven energy management technologies.

In 2012, the biomass industry needs to focus on the positive economic benefits it brings to communities and the importance of energy independence. Further, while establishing a biomass definition is important, let’s not allow that debate to divert precious time and energy away from the development of a cost-effective supply chain and establishment of biomass as an alternative energy source to fossil fuels.

Author: Kate Bechen
Attorney, Michael Best & Friedrich LLP
(414) 225-4956
klbechen@michaelbest.com

http://www.biomassmagazine.com/articles/5988/biomass-2012-international-growth-and-domestic-obstacles

‘Fool’s gold’ aids discovery of new options for cheap, benign solar energy

ScienceDaily (Nov. 28, 2011) — Pyrite, better known as “fool’s gold,” was familiar to the ancient Romans and has fooled prospectors for centuries — but has now helped researchers at Oregon State University discover related compounds that offer new, cheap and promising options for solar energy.

These new compounds, unlike some solar cell materials made from rare, expensive or toxic elements, would be benign and could be processed from some of the most abundant elements on Earth. Findings on them have been published in Advanced Energy Materials, a professional journal.

Iron pyrite itself has little value as a future solar energy compound, the scientists say, just as the brassy, yellow-toned mineral holds no value compared to the precious metal it resembles. But for more than 25 years it was known to have some desirable qualities that made it of interest for solar energy, and that spurred the recent research.

The results have been anything but foolish.

Read the complete article at SceinceDaily

High-Efficiency Motors, Drives Can Cut 10% of Energy Spend

In its Motors and Drive Technology Overview, the trust says that a running motor’s energy use in one year can cost up to ten times its purchase cost. Typical running costs for a fully loaded motor range from £1,770 a year for a 2.2kW motor to £25,970 a year for a 37kW motor, the guide says, assuming an electricity price of £0.08/kWh.

The Carbon Trust says that because motors are so widespread, and often hidden within machinery, they tend to be left running even when they are not needed. It recommends that companies identify equipment that can be switched off, and consider the risks of doing so: for example, what is the potential for the operator to switch off the wrong motor, or switch off at the wrong time? Does flipping the switch pose health and safety risks?

Enterprises should consider automatic switch-off using timers, interlocks or load-sensing devices. If using manual switch-offs, companies should consider writing a switch-off procedure, and placing it where operators can easily see it.

The Carbon Trust has also published its Variable Speed Drives Technology Guide, showing various ways that VSDs can be used to reduce energy use in a range of motor applications.

According to the guide, about half of all motor applications have some kind of varying demand. This includes fans, pumps, winding reels and precision tools.