Interesting to see how algae biodiesel is beginning to get "slick" with their marketing (see the photo). But hype, unfortunately, is what it'll take for folks to sit up and take notice. Article here.
The next big thing in energy: Pond scum?
GreenFuel Technologies is betting that algae will save the planet - and make the company filthy rich.
By
David Stipp, contributor
(Fortune Magazine) -- Sandwiched between two nondescript commercial
buildings in a vacant lot squats what looks like a long,
plastic-shrouded greenhouse. Hanging nearby is a cluster of
five-foot-long plastic sacks bulging with green slime that resemble
intravenous drip bags for the Jolly Green Giant. It doesn't look like
groundbreaking technology, but these scum bags in Cambridge, Mass.,
just might help save the planet.
That, at any rate, is what
Isaac Berzin, founder and chief science advisor at GreenFuel
Technologies, wants to do. The curious setup is an experimental
bioreactor that takes the stuff of pond scum - algae - grows it like
mad, and turns it into "biomass" that can be processed into fuel for
cars and trucks. Even better, the GreenFuel system could help to clean
up coal too.
The idea is that a coal plant's CO2 emissions,
rich food for algae, could be piped into the GreenFuel system, inducing
the algae to grow. Since the algae are essentially eating the coal
emissions, there would be no need to capture and store the CO2. The
process answers the "trillion-dollar question that led to the founding
of GreenFuel," says acting CEO Robert Metcalfe. To wit: "Why
expensively sequester CO2 when it can be profitably recycled?"
That's
a leading question, of course, and it glosses over major challenges.
Capturing all of a coal-fired power plant's CO2 emissions would require
a series of GreenFuel bioreactors covering hundreds, or even thousands,
of acres. In densely populated areas, that could be a killer. And the
process hasn't yet been proven technically feasible on a large scale,
much less profitable.
Still, Metcalfe's question captures why
scum is getting love in energy circles these days. Unlike other
biofuels, algae can grow in arid places using polluted or salty water -
no need to use up scarce arable land and fresh water. A 2004 analysis
at the University of New Hampshire concluded that all the
transportation fuels in the United States could be supplied by algae
grown on less than 30 million acres of desert - an area equal to about
3% of the U.S. land devoted to farming crops and grazing for animals.
Because
algae can grow so fast, such farms are expected to yield much more
energy per acre than other biofuels. "If algae are shown to be a
cost-effective way" to reduce carbon footprints, notes Berzin, "the
power industry will become a gorilla pushing algae forward." That's not
likely: GreenFuel's main research collaborators so far are electric
utilities.
Existing biofuels are primarily made from food
crops, such as corn and soybeans. U.S. production of corn ethanol,
buoyed by federal subsidies, has soared from 1.6 billion gallons in
2000 to 6.5 billion last year. Its explosive growth has demonstrated
biofuels' gusher potential. Of course, given recent oil prices, they
may well be the locus of the next bubble, and there is clearly a
backlash brewing. But biofuels that are not derived from food crops,
such as cellulosic ethanol made from switchgrass, could be a major new
source of transportation fuel. Think, said a McKinsey analyst last
year, of its reaching Saudi-oilfield proportions by 2020.
Algae-energy research
In
a move that galvanized biofuels entrepreneurs, the federal Defense
Advanced Research Projects Agency (DARPA) in November launched a major
research program to enable the cost-competitive production of military
jet fuel from both cellulosic and algal feedstocks. The director of the
program, Douglas Kirkpatrick, says he thinks major questions about
algal fuels' technical feasibility will be answered in "the next three
to five years."
That sounds about right: Algae-energy research
is bubbling with new ideas and talent and is beginning to get backing
from venture capital. "In the past the money in this area went only to
academics," says Matt Caspari, CEO of Aurora BioFuels in Alameda,
Calif. "Now it's reaching entrepreneurs who are applying technologies
that didn't exist ten or 15 years ago."
Two-year-old Aurora is
developing biodiesel from oil-rich algae cultivated in labs at the
University of California at Berkeley. Solazyme, a South San Francisco
biotech, is working to develop algae that produce more gallons of
biodiesel per acre. And several players, including Kent SeaTech (San
Diego), A2BE Carbon Capture (Boulder), and LiveFuels (Menlo Park,
Calif.), plan to combine aquaculture with algae farms.
Of course, there are always entrepreneurs poking into odd corners;
what's changed recently is that fuel from algae has proved credible
enough that big business is also getting intrigued. Last fall Chevron
formed a partnership with federal researchers to study algal fuels. In
December, Royal Dutch Shell (RDSA) announced that it will build a pilot algae-growing facility in Hawaii with Honolulu-based HR BioPetroleum. A Honeywell (HON, Fortune 500) unit has developed technology to process algal oil into jet fuel. Boeing (BA, Fortune 500) and Raytheon (RTN, Fortune 500) are also investigating algal fuels.
An old idea, new again
The
idea of using algae for energy is hardly new. Beginning in the late
1970s, scientists at what is now the National Renewable Energy
Laboratory, or NREL, in Golden, Colo., spent 17 years investigating the
possibilities. In 1995 they gave up, concluding that algae-derived
biodiesel fuel would cost too much. The program was terminated in 1996.
So algal fuel seemed a lost cause when Berzin, then a postdoctoral
researcher at MIT, ran across the NREL team's final report. An expert
on cell-culturing systems, he couldn't resist tinkering with novel
bioreactors to grow algae. Before long, he was hooked; in 2001, a year
that gas prices topped out at $1.66 a gallon, he launched GreenFuel.
Which raises an issue of great complexity and consequence: Was he nuts?
You
can't look very far into this question without running into a curiously
strident set of GreenFuel bashers. Flailing away in blogs and other
forums, they argue that its strategy doesn't even make enough sense to
qualify as hubris.
"It's bizarre, it's totally absurd," insists
John Benemann, a biofuels consultant who worked on the NREL algal fuels
project. To understand Benemann's view, as well as his vehemence, it
helps to know that his team at NREL rejected bioreactors like
GreenFuel's on the grounds they would be too expensive. The NREL
researchers endorsed the use of open-air ponds, which is what almost
all commercial growers of edible algae, such as Spirulina, use.
Berzin
dismisses this conclusion. Growing algae in ponds, he argues, is
limited because algae are less productive in the cold. Water must be
continually replenished in the heat, and in the open, special oil-rich
algae for fuel are susceptible to replacement by hardier, indigenous
scum. In short, argues Berzin, while ponds may work in some places,
bioreactors should work in many more.
That logic failed to wow
potential investors during GreenFuel's early years. "We kissed a lot of
frogs," says Holly Flesh, vice president of business operations and a
co-founder. In 2004, GreenFuel found a prince, Access Industries, a New
York investment firm that gave it $2.1 million in seed capital. Berzin,
a brash, buoyant spinner of ideas, went right to work, installing a
bioreactor on an MIT rooftop that became a big, green media magnet.
Stories noted that the system captured up to 82% of the CO2 in flue
gases from an MIT power plant fired by natural gas.
By
mid-2006, GreenFuel had hired energy-industry veteran Cary Bullock as
CEO, installed pilot projects at two utilities' power plants, and
secured $17.8 million in venture capital. In November 2006, GreenFuel
announced that it had recycled CO2 emissions at Arizona Public
Service's Redhawk power plant into algal biomass for making both
ethanol and biodiesel - a first.
In early 2007, GreenFuel
installed a bioreactor at the same plant that was 100 times larger than
its earlier test models. That bioreactor was meant to launch GreenFuel
toward huge commercial systems. Instead, in an episode reminiscent of
"The Sorcerer's Apprentice," it nearly cratered the company.
The
system worked amazingly well at first, growing algae in the Arizona sun
much faster than anticipated. "We thought, Oh, yeah!" says Berzin. "But
immediately after, we thought, Oh, no!" The algae were growing faster
than GreenFuel's team could harvest them. The overabundant algae
clogged the system and began dying, forcing the team to shut down the
bioreactor.
Facing headwinds
While
fixable, the setback was a major blow, and not the only one. A few
months before, GreenFuel had won a major contract to supply its
technology to a biofuels developer in South Africa, but the company
could not keep its promises and ceased operations in a swirl of fiscal
controversy. Running low on cash, GreenFuel had hoped to win another
round of venture funding in mid-2007 by showing that its Arizona
scale-up was on track. Clearly it wasn't. Worse, during the week of the
Arizona debacle an outside consultant reported GreenFuel's projected
harvesting system would cost more than twice as much as expected. The
bashers were beaming.
At a tense board meeting in June 2007,
CEO Bullock told GreenFuel's main backers of the problems. In short
order they cut about half of GreenFuel's 50-person staff and installed
Metcalfe, a director, as acting CEO. Existing investors agreed to grant
a $5.5 million bridge loan to keep the company going. Bullock stayed on
as the marketing chief, racking up letters of intent for several major
deals.
Meanwhile, Metcalfe reorganized the startup's technical
side to improve productivity and ensure rigorous vetting of new
designs. His leadership gives GreenFuel instant credibility. While many
biofuels players are led by visionaries who dream of changing the
world, Metcalfe has already been there and done that. Known as "the
king of connectivity," he co-invented the Ethernet, a key enabler of
computer networking, in the 1970s. He then went on to found networking
pioneer 3Com and to win the National Medal of Technology, the nation's
top honor for technical innovation. Under his steadying hand, GreenFuel
has developed a new bioreactor- the one in Cambridge- that is simpler
and cheaper than its predecessors.
Metcalfe says the company
has now completed five of seven goals he set for its recovery. The
remaining two, hiring a new CEO and securing a third venture-capital
round, are on track. The company is negotiating deals that could
provide funding to scale up several algae-growing systems to commercial
size within a few years.
Has GreenFuel finally cracked the
algae code? That, of course, remains to be seen. But the economics are
making it look less like science fiction and more like a business in
the making. With diesel costing nearly $4 a gallon- a third more than a
year ago- the gap is shrinking between the projected costs of algal
fuels and the real price of the fossil kind. Another few years at this
rate and algal-fuel developers will no longer be worrying about making
their products cost-competitive but about expanding fast enough to meet
demand.