All posts by Adam Aston

GreenBiz

PepsiCo’s Water-Saving Mission Flows Beyond Its Factories | GreenBiz

When it comes to water issues, PepsiCo‘s fizzy drinks tend to get all the attention. But the company is also a huge manufacturer of snack foods. Its food operations, PepsiCo is finding, offer huge potential to save water — including going “off the water grid.”

At a UK factory that makes Walkers potato chips — or “crisps,” as the locals prefer — PepsiCo is exploring the possibility that the potatoes themselves could yield enough water to operate the factory.

Potatoes offer a unique opportunity to turn off the taps, PepsiCo’s plant managers have recognized. When raw spuds arrive at the loading dock, they’re about 80 percent water by volume.

Indeed, the biggest challenge in making chips crispy is extracting all that water. As the thinly sliced spuds pass through the deep fryer, a thick fog of steam rises from the oil’s surface, as the water steams off.

Instead of letting it escape through a chimney, PepsiCo is exploring the possibility of capturing the vapor, condensing it to reuse and maybe recapturing the heat energy at the same time. It’s a move the company estimates could save the plant in Leicester, England, $1 million per year.

PepsiCo’s UK and Ireland arm has become a leader in setting ambitious environmental and operating goals. These also include being fossil fuel free by 2023 and achieving zero landfill across its supply chain by 2018 (click here to see more on the UK and Ireland goals).

Thinking like this is helping PepsiCo push ahead with ambitious goals globally, to cut water use across the beverage-and-snack conglomerate’s worldwide operations, says Dan Bena, PepsiCo’s director of sustainable development.

I caught up with Dan last week to hear how things were going since Pepsi published its inaugural water reportlast September (click here to download a PDF).

The report followed PepsiCo’s move in 2009 to publicly endorse water as a human right, just in advance of a similar declaration by the UN general assembly.

PepsiCo’s approach combines internal efforts at its plants with collaborative programs to conserve supplies of and improve access to clean water globally.

As part of a broader set of corporate sustainability goals, PepsiCo is specifically aiming to:

  • Improve water use efficiency by 20 percent per unit of production by 2015 compared with 2006;
  • Strive for positive water balance in operations in water-distressed areas; and
  • Provide access to safe water to 3 million people in developing countries by the end of 2015.

Efforts to cut water are ahead of schedule to beat the 20-by-2015 goal, says Bena. To drive this process within its factories, the company is turning to ReCon — short for “resource conservation” — a homemade analytic tool that maps out the use of energy and water in manufacturing plants. Deployed at hundreds of sites, and used in collaboration with supply-chain partners, the tool has saved many millions of dollars in water and energy costs.

“There’s a myth that water is cheap in many areas,” says Bena. “Even in places where it is inexpensive to buy, once you start measuring, you see the costs of treating water, using it, filtering it, and discharging it piling up.

“In some cases, we’re seeing a tenfold increase in the fully measured cost of water from when it enters a facility to when the process is complete. When business people see water costs real money, there’s no better way to get their attention.”

Bena explained that the second of PepsiCo’s three water goals, above, amounts to a kind of “one-for-one” rule. For every liter of water the company uses, PepsiCo hopes to restore, replenish or prevent the waste of as much or more water.

By this measure, Bena says that PepsiCo has already exceeded this goal in India thanks to its role developing a direct-seeding technology for rice. The method drastically reduces the period during which the rice stalks must be submerged in 6 to 12 inches of water.

“We patented a piece of equipment that saves about 30 percent of the water compared with traditional methods,” says Bena.

PepsiCo’s R&D team developed the specialized tractor over about four years, and has given Indian farmers free access to the equipment, along with technical guidance to learn new growing methods.

According to a World Business Council case study of the effort, PepsiCo’s initiative also cut farmers’ costs by 3,500 rupees (about $80) per hectare compared with traditional methods. Extended to 2,630 hectares (approx. 6,500 acres) in 2009, the system conserved an estimated 5.5 billion liters of water.

In addition, the Indian Government estimates that reduced water use lowers the paddy’s greenhouse gas (GHG) emissions by 70 percent, cutting down the volume of rotting vegetative mass, which gives off methane, in the standing water.

To push towards its third goal, providing safe water to 3 million people by 2015, PepsiCo has been focusing on developing public water kiosks in Ghana, India and Kenya. “There’s a misconception that people can’t or shouldn’t pay for water,” says Bena. “The reality is that in many poor countries, they already do, and they pay a high price for low quality water.”

Working with Water.org — which is the culmination of the July 2009 merger between Water Partners International and Matt Damon’s H20 Africa Foundation — PepsiCo is trying to supplant high-priced, private water distributors to build community taps.

There’s another benefit, too. “By brining water into a community, you eliminate the time children — often hours, and usually girls — typically spend fetching fresh water,” says Bena.

Back in the factories where it makes fizzy drinks, PepsiCo continues to drive down the volume of water use. “On average, it takes about 2.5 liters of water to produce one liter of beverage.”

“It’s really variable though,” Bena says. “Some newer, advanced plants are running at half that ratio. Some older ones are probably double that. That’s the opportunity that we face.”

Image courtesy of PepsiCo.

Check out the original story here: http://www.greenbiz.com/blog/2011/04/19/pepsicos-water-saving-mission-flows-beyond-its-factories?page=full

Global CCS Institute

US Senator Bingaman aims to jump-start CCS with a bill addressing liability | Global CCS Institute

All but lost in the din in the effort to pass a federal budget, a bi-partisan senate bill has re-surfaced that breathes fresh hope for U.S. federal support for carbon capture and sequestration, or CCS.

Introduced on March 31, and authored by Democratic Senator Jeff Bingaman of New Mexico, the bill addresses the central question of liability facing new CCS projects.

While carbon dioxide has been used for decades for enhanced recovery in oil bearing rock formations, less is known about how the gas will behave in salt and other geological formations being considered for CCS.

“The liability question is one of the main impediments for the technology to penetrate more widely,” said Salo Zalemyer, an attorney at Bracewell & Giuliani Environmental Strategies Group in Washington who I spoke with about the bill’s prospects.

“And ultimately that technology hasn’t been adequately tested out yet.” Without some liability shield in place, at least for early movers, progress will be slowed, he said.

Senate bill S.699 authorizes the Energy Dept to set up agreements, providing technical and financial support, for up to ten large-scale CCS projects. Qualified projects would inject at least 1 million tons of carbon dioxide from industrial sources.

David Wagner, a lawyer at Environmental Law Review points out, that besides laying out liability terms, the bill also outlines procedures for long-term management of CCS sites:

To pave the way, proposed bill offers liability protection and federal indemnification for the CCS demonstration projects. Under the bill, DOE is authorized to indemnify projects up to $10 billion for personal, property and environmental damages that might be above what is covered by insurance or other financial assurance measures. Upon receiving the closure certificate for the injection site, the site may be turned over to the federal government for long-term site management and ownership. The proposed bill also outlines criteria for site closure certification and includes provisions for siting the demonstration projects on public land. In addition, it would establish and fund a CCS training program for state regulators.

The bill enjoys bi-partisan support from other Senators from big energy states. In addition to Bingaman, DemocratJay Rockefeller (West Virginia) signed on. The Republican co-sponsors are John Barasso (Wyoming) and Lisa Murkowski (Alaska).

Prospects for passage are typically murky at this early stage.

This is Bingaman’s second try with CCS: The proposed law is similar to a bill he sponsored in 2009. With bipartisan co-sponsors S. 1013 made it out of committee to the Senate floor, but didn’t make the cut with a broader energy legislative package later that year.

Bingaman’s 2011 do-over version has been referred to the Senate Committee on Energy and Natural Resources, and if it proceeds would next face a public hearing at an uncertain date in the future.

Officially, S.699 is titled: “A bill to authorize the Secretary of Energy to carry out a program to demonstrate the commercial application of integrated systems for long-term geological storage of carbon dioxide, and for other purposes.”

Check out the full text here, S.699.IS.

via globalccsinstitute.com

Global CCS Institute

Capturing carbon with sawdust | Global CCS Institute

Dead plants may work as well as living plants in mopping up carbon dioxide from admissions, a duo of Spanish scientists has found.

Reporting for the Royal Society of Chemistry on Mar 18, Yaundi Li writes that sawdust is showing promise as a porous solid, able to absorb carbon dioxide in its pores. Other solids, such as zeolites, are already used in this way, but most are hard to fabricate and can absorb only about 3 mmol of carbon dioxide per gram (3mmol CO2/g).

A research group at Spain’s National Institute of Carbon in Oviedo have been able to convert sawdust into a lower cost material that absorbs up to 50% more of the greenhouse gas per volume—potentially the largest ever carbon uptake at room temperature, in fact.

I’ll leave it to Yi to describes the process:

The two step synthesis involves hydrothermal carbonisation of the sawdust, creating a hydrochar, which is then activated using potassium hydroxide. The KOH treatment creates pores in the sawdust structure by oxidation of carbon and carbon gasification from K2CO3 decomposition. These pores are responsible for the material’s uptake capabilities, bestowing it with a capacity as high as 4.8mmol CO2/g. In addition, [the] material has good selectivity for CO2 over N2, fast adsorption rates and can be easily regenerated.

More work must be done in advance of commercialization. But the find is promising given that raw material is plentiful and the fabrication process is “not complex” according to Antonio Fuertes, the lead researcher, as quoted in the article.

Caption: Magnified image of sawdust before (left) and after
(right) being heated and activated showing the pores, via RSC.org.

For the serious carbon scientists I know we have here in the GCCSI community, I waited until the end for the serious technical stuff, so as not to scare off too many layfolk. Here’s the abstract for Sevilla and Fuertes’ study. For more, click here to go to the full journal citation at Energy & Environmental Science.

Sustainable porous carbons have been prepared by chemical activation of hydrothermally carbonized polysaccharides (starch and cellulose) and biomass (sawdust). These materials were investigated as sorbents for CO2 capture. The activation process was carried out under severe (KOH/precursor = 4) or mild (KOH/precursor = 2) activation conditions at different temperatures in the 600–800 °C range. Textural characterization of the porous carbons showed that the samples obtained under mild activating conditions exhibit smaller surface areas and pore sizes than those prepared by employing a greater amount of KOH. However, the mildly activated carbons exhibit a good capacity to store CO2, which is mainly due to the presence of a large number of narrow micropores (<1 nm). A very high CO2 uptake of 4.8 mmol·g-1 (212 mg CO2·g-1) was registered at room temperature (25 °C) for a carbon activated at 600 °C using KOH/precursor = 2. To the best of our knowledge, this result constitutes the largest-ever recorded CO2 uptake at room temperature for any activated carbon. Furthermore, we observedthat these porous carbons have fast CO2 adsorption rates, a good selectivity for CO2–N2 separation and they can be easily regenerated.

via globalccsinstitute.com

GreenBiz

GE Invests $600M to Build Largest US Solar Plant | GreenBiz

GE Invests $600M to Build Largest US Solar Plant

Looking back it’s easy to pinpoint the moment the U.S. wind industry came of age: April 12, 2002, when General Electric won Enron Wind Corp.’s wind assets in a bankruptcy auction.

The conglomerate’s $358 million bid has since mushroomed into a $6 billion dollar business and the fastest-growing electricity generation technology in the U.S.

Now GE is hoping to repeat that trick in solar energy. GE announced yesterday a $600 million investment to start manufacturing solar panels in a new factory slated to be the largest in the U.S.

The move is likely to shake up an industry locked in a near-permanent price war. GE is adapting — and says it has bettered — the same technology as the world’s current high-volume, low-cost manufacturer, FirstSolar, based in Tempe, Ariz.

Rather than produce solar systems based on silicon, a technology which dominates in the panels found on most household and commercial building roofs, GE’s is turning to thin-film materials.

In thin film panels, instead of building the solar cells on silicon wafers, sheets of glass are used to sandwich minuscule layers of active material, including a key ingredient, cadmium telluride (CdTe), which gives the panel their name.

GE says its approach produces the most efficient CdTe panels to date, citing an evaluation by the U.S. National Renewable Energy Lab. NREL found that GE’s thin film panels convert 12.8 percent of light into electricity, surpassing all previous measurements for CdTe panels.

While only about three-quarters as efficient of conventional silicon panels, the lower manufacturing costs of CdTe thin film panels make them cheaper, measured by per watt of capacity, than any currently viable commercial technology.

Declining to reveal any pricing details, Vic Abate, GE’s vice president of renewable energy, affirmed the company aims to be a price leader.

As part of the announcement, GE completed the acquisition of PrimeStar, Inc., a thin film pioneer that GE first took a minority stake in three years ago. In earlier news, GE has also bid $3.2 billion for Converteam, a maker of advanced electronics used to manage and produce renewable energy…

Continue reading here: http://www.greenbiz.com/blog/2011/04/08/ge-invests-600M-build-largest-US-sola…

NRDC OnEarth

PODCAST What Can We Do With All That CO2? | OnEarth

You can’t see it, smell it, or taste it, but there’s carbon dioxide in the air all around us. And each day, we’re producing more of it.

For the past 60 years, scientists have been measuring the increased concentration of CO2 in the atmosphere. Burning fossil fuels (along with rapid deforestation around the planet) sends billions of tons of CO2 into the air each year, and the extra greenhouse gas is causing average global temperatures to climb. To slow down rising temperatures, or stabilize them, scientists say carbon emissions need to be dramatically reduced and eventually brought to zero.

Of course, using carbon-free sources of energy, such as wind and solar, is an obvious way to cut emissions. But the world’s growing energy demands can’t yet be met with renewables and other carbon-free energy, and it will probably be decades before that technology is affordable and widespread. In the meantime, what can we do with all that extra CO2?

In this episode of the Climopedia podcast, Climate Central and OnEarth look at ideas for reducing CO2 concentrations. Columbia University’s Klaus Lackner shares his thoughts on why carbon capture and storage (CCS) technology is needed. OnEarth contributor Adam Aston describes new technology that can help scoop CO2 right out of the air (see his story on carbon trees). Finally, Princeton University’s Andrew Bocarsly explains how we might put some of that captured CO2 to good use.

via onearth.org

Check out my mellifluous stylings in the middle third of this short podcast: http://www.onearth.org/media/listen-what-to-do-with-co2

Global CCS Institute

Greenhouse gas emissions from U.S. power plants surged by 5.6% in 2010, largest-ever increase in a single year | Global CCS Institute

Amidst increasingly acrimonious political fighting in Washington over the fate of U.S. environmental programs in general, and about climate policy in particular, carbon dioxide emissions from power plants have resumed their upward climb after a recession-related retreat. News of rising emissions is likely to intensify the tug-of-war over federal regulation of greenhouse gas emissions.

While official data for overall US emissions has not yet been released for 2010* by the Energy Information Administration (EIA), data from power plant emissions—which account for about 40% of total U.S. emissions—point to a return to upward growth in overall emissions as the economy heats up. With demand for electricity falling, overall emissions contracted by 6% during the recession of 2008 and 2009, bucking a trend of steady 0.4% annual growth since 1990. The retreat temporarily deflated the national debate on climate policy.

Now it looks like emissions are climbing again, in sync with the economic recovery. U.S. greenhouse gas emissions from power plants surged by 5.6%, after declining sharply in 2009. The rise last year is largest in a single year since the EPA began tracking the data 15 years ago, according to a study by the Environmental Integrity Project, a Washington, D.C.-based nonpartisan, nonprofit organization established in March 2002 by former EPA enforcement attorneys to advocate for more effective enforcement of environmental laws.

Reflecting the recovery the economy, growth in emissions mirrors increased demand for power. “Last year’s rise was driven in part by a 3.0% net increase in overall generation for the 12 months ending in November of 2010,” the report noted.

In 2010 carbon dioxide emissions from power plants grew to 2.42 billion metric tons, or gigatonnes, up from 2.30 gigatonnes in 2009, based on data from the EPA’s Clean Air Markets website. Total carbon emissions from power plants were still below the record of 2.57 gigatonnes set in 2007.

Across the U.S., 50 coal-fired power plants accounted for 750 million tons, or megatonnes, of carbon dioxide releases in 2010, nearly one-third of the nation’s total. Four power plants emitted over 20 megatonnes apiece in 2010, two in Georgia, one in Alabama, and one in Texas.

The heaviest emitting states were Texas with 257 million tons, nearly twice the volume of the number two state, Florida, where power plants released 130 million tons of carbon emissions. Rounding out the top-10 states were: Ohio, Indiana, Pennsylvania, Illinois, Kentucky, Georgia, Alabama, and Missouri.

The resurgence in emissions come amidst sustained opposition to new coal burning facilities, and a shift by utilities to replace older coal plants with natural gas.

Nearly 4.5 gigawatts of new coal-fired electric generation came on line in 2010, the study notes, about half of that in Texas.

But power companies have also announced plans to retire almost 12 gigawatts of coal-fired capacity in coming years, including the January announcement last month that Xcel would close nearly 900 megawatts of coal-fired capacity at four different power stations in Colorado.

* U.S. greenhouse gas data for 2009 was released in draft form on Feb. 15, 2011. http://www.epa.gov/climatechange/emissions/downloads11/US-GHG-Inventory-2011-Complete_Report.pdf

via globalccsinstitute.com

The Fiscal Times

Charge! Electric Cars Fueled by Higher Gas Prices | The Fiscal Times

Turmoil in the Middle East, uncertainty about oil prices, and gasoline still flirting with the nerve-rattling level of $4 per gallon in some parts of the country are making consumers nervous. Even after prices slipped in response to concerns about reduced demand from the crisis in Japan, oil is now trading at about $100 a barrel. Prices are likely to stay high in the near term, or even rise further, given recovering economies in much of the world,  unrest in the Arab world, and the coming summer travel season.

We’ve been there before, only worse. In 2008, when oil peaked near $150 a barrel, car buyers stampeded away from big, gas-guzzling vehicles and overall auto sales collapsed. Just as Hummers were practically being given away, automakers responded with fleets of smaller hybrid vehicles, and the path to sustainable energy consumption was set.

The good news today is that the U.S. is better prepared to cope with an oil crisis with the advent of the electric car. All but written off in the 1990s, following GM’s decision to junk its EV1, dozens of highly efficient electric vehicles (EVs) are headed for U.S. roads this year and next.

“It’s not just improved car technology,” says Jack Hidary, Global EV Leader at Hertz, which is rolling out electric vehicles at rental sites in the U.S. and overseas. Beyond carmakers, other big players “see a roadmap of business models to make EVs a commercial success,” says Hidary, a technology entrepreneur who was a co-architect of the federal Cash for Clunkers program…

More here: http://www.thefiscaltimes.com/Articles/2011/03/17/Electric-Cars-Gas-Prices.aspx

 

Global CCS Institute

Will nuclear fears shift development to renewables and CCS? | Global CCS Institute

A week into Japan’s triple tragedy—earthquake, tsunami, and nuclear accident—the implications are still unfolding. Analysts are beginning to map out how the nuclear accident could affect global energy trends for nuclear, conventional energy, and carbon capture and sequestration (CCS).  Continue reading Will nuclear fears shift development to renewables and CCS? | Global CCS Institute →

GreenBiz

With its First-Ever CSO, UPS Kicks Sustainability Up to the C-Suite | GreenBiz

With its First-Ever CSO, UPS Kicks Sustainability Up to the C-Suite
Scott Wicker started at United Parcel Service, Inc. on his first day of college in 1977. The job was part of a deal with his dad: If Wicker could help support his own expenses, his dad would cover housing costs and tuition at Wayne State. Responding to a flyer posted in a school administration building, Wicker applied to UPS and was unloading big rigs in no time.

Thirty-four years and a couple of engineering degrees later, Wicker’s still at UPS. In that time, he’s gone from the loading dock to supervising the $50-billion company’s sustainability strategy and practices.

Scott WickerOn Wednesday, Wicker got kicked upstairs, becoming the shipping giant’s first chief sustainability officer. Wicker was promoted from his former role as vice president of sustainability and plant engineering.

The new title culminates a decades-long process at UPS to elevate sustainability to the company’s highest levels of management. “It was strategic decision, made between our CEO and COO,” says Wicker. “[Sustainability] is high on their list of priorities, so things get done. ”

As CSO, Wicker serves on a steering committee that routinely gathers the company’s top brass — its CFO, CIO, COO, plus heads of marketing and communications, human resources, and communications, among others — to oversee green strategy and help coordinate efforts of midlevel sustainability working groups across the enterprise.

The approach is part of an effort over the past few years “to really put teeth into our sustainability programs,” Wicker said in telephone interview earlier this week. “As sustainability has moved along and we wanted to accelerate that, we needed more structure, and the organization has recognized that fact.”

Top priorities for Wicker include devolving sustainability practices more deeply throughout UPS’ sprawling global operations. To spread the word, UPS will continue to rely on internal training and communications.

Wicker also sees the profit potential in green service offerings as a way to recruit serious commitment from UPS’ sales teams. “We’ve learned we have a competitive advantage in this area, and staff are always interested in ways to sell our business better from a sustainability perspective,” says Wicker. “One of the first places we went was to the sales and marketing team to see the benefits of these programs.”

One example of a green feature that is winning over customers, says Wicker, is UPS’ push to develop detailed carbon footprint reporting for practically any shipment a UPS customer makes. “Every year, the requirement from our customers gets tougher, so our data has to get better and better,” says Wicker.

For instance, the General Services Administration, the federal government’s buying arm, is requiring carbon information for its suppliers. For companies working to meet that requirement by measuring and improving their supply chain, “They discover UPS is big piece of their business model.” …  Continue reading here greenbiz.com

Global CCS Institute

US clean energy stimulus spending starts slow: CCS funding last out of the gate | Global CCS Institute

In 2009, when newly elected President Obama signed the American Recovery and Reinvestment Act, nearly $65 billion was allotted to fund green programs.

For the U.S.’s nascent clean energy industry, the funds were like finding fresh water on a long, parched journey.  The funds promised to rejuvenate American cleantech industries, and help them catch-up with European players who had benefitted from more public funding, over a longer period. Continue reading US clean energy stimulus spending starts slow: CCS funding last out of the gate | Global CCS Institute →