New Hampshire, USA --
An 18-MW biomass plant is set to reopen in Imperial, California as
part of the ML Energy Park after a 2010 earthquake damaged the facility.
Viaspace signed a contract with Mesquite Lake Water and Power LLC to
supply the plant with its Giant King Grass (GKG) feedstock, which will
be mixed with wood waste.
An additional 16-MW plant located in the energy park originally
designed to gasify cow manure will be converted to produce advanced
biofuels with Viaspace’s GKG. The energy park has all the elements
needed for sustainable bioenergy production, acoording to Mesquite Lake
managing member Rodney Williams.
“Between the two plants, there is plenty of land for our energy park.
We are connected to the grid and there is an adjacent natural gas
pipeline. We are experienced in agriculture and have access to land to
grow Giant King Grass,” said Williams in a statement. “The Imperial
Valley has ideal weather for Giant King Grass and there is plenty of
water for irrigation.”
GKG is a dedicated energy crop with very similar properties as corn
stover, which is what remains after corn harvesting. When comparing each
resource's BTUs per dry pound, GKG comes in at 7,900, stover at 7,560,
while coal is around 9,000 (depending on its quality), according to the
EPA. Corn stover prices currently hover between $1.89 to $3.78 per
million BTU and coal costs $2.36 per million BTU.
When it comes to biofuels, one ton of GKG can yield as much fuel as
one ton of corn stover, according to a 2011 independent study. With
these numbers, Viaspace chief executive Carl Kukkonen believes Giant
King Grass is a worthy competitor in the bioenergy market.
"An acre of Giant King Grass yields up to 10 times greater tonnage
than an acre of corn stover...With our high yield, we believe that Giant
King Grass can reduce biofuel feedstock costs by up to 40 percent, even
when compared to projected prices for corn straw as agricultural
waste,” he said in a statement. “As a result, Giant King Grass promises
the cost-of-production breakthrough that has plagued the
second-generation biofuels industry."
GKG can be grown on marginal lands unsuitable for food crops, and is
quite hearty – it thrives on warmth and sunshine, which makes the
Imperial Valley an idea growing site. Giant king grass can be harvested
for pellet or biofuel production when it is 13-16 feet tall, or every
150-180 days. In a tropical area with a 12-month growing season, it can
produce a year-round supply at 167 tons per acre at 70-75 percent
moisture, according to the Viaspace website.
“[The ML Energy Park] project is basically in our own backyard. We
are already growing Giant King Grass in Southern California and we
believe it will grow even better in the Imperial Valley, which has more
heat and a longer growing season,” explained Kukkonen. “Giant King Grass
is a C4 plant, which means that it thrives in hot weather as long as it
has water available. We expect to be growing in Imperial Valley very
shortly.”
http://www.renewableenergyworld.com/rea/news/article/2014/03/biomass-and-biofuel-plants-under-development-in-california-using-giant-king-grass
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