SAN DIEGO SHINES WITH SOLAR
San Diego expects to save a total of $22
million with 6. 6 MW of solar.
PV arrays will be installed at 25 city-
owned properties under the 20-year power
purchase agreement with SunEdison. The
solar systems are expected to offset more
than 70% of the electricity used by these buildings.
The 25 locations receiving solar in California’s second largest city include several
historic communities, recreation centers and libraries. This iniative will also include solar
parking canopies, which will provide shade while generating clean electricity.
“This solar agreement will help us achieve our energy efficiency goals, saving San
Diegans millions of dollars over the term of the agreement while doing the right thing
for the environment,” says Mayor Kevin Faulconer.
Construction will commence during the second quarter of 2016, with completion
targeted by the fourth quarter. Operation, maintenance, monitoring and reporting will
be performed by SunEdison Services.
RENTALS & SALES
Heat pumps provide a warm
change for any cold environment:
offices, lobbies, schools,
warehouses, daycare centers,
retail spaces, nursing homes
or any other place
that requires immediate,
reliable, supplemental heat.
BETTER FUELS CELLS WITH METHANOL
Scientists are exploring better sources of catalysts in fuel cell technology. More efficient materials will improve the performance of this type of
renewable energy solution.
Catalysts are nanoparticle materials that facili-
tate a chemical reaction and are often rare metals,
Methanol fuel cells have great potential as the combination of methanol and oxygen
produces water and carbon dioxide as a waste product. The carbon footprint in this
process is neutral because as the methanol is produced by photosynthesis, it removes
CO2 from the atmosphere. B
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BIODEGRADABLE FIREFIGHTING FOAM
While effective at fighting fires, synthetic extinguishing foams are often toxic and can take over
200 years to decompose. To counter these environmental and safety concerns, a team of chemists
from ITMO University in St. Petersburg have developed a firefighting formula based on inorganic
The new foam beats existing analogues in fire extinguishing capacity, thermal and
mechanical stability, and biocompatibility. After the fire is extinguished, the substance
actively absorbs water, softens and falls apart into bioinert silica particles. Should the
foam accidentally enter a living organism, it does not pose any danger to them.
The silica nanoparticles also create a polymer network when exposed to air, explains
Alexander Vinogradov, Laboratory Deputy Head. “Such a network embraces and adheres
to the burning object and momentarily cools it down. At the same time, the foam itself
hardens and protects the object from reignition, allowing the inorganic material to resist
temperatures above 1,000 degrees C. (over 1,800 degrees F.), which ensures gigantic
stability from the aggressive environment in the midst of a raging fire.”