efficiency of new refrigerators is much higher than older
ones. Variable frequency drives can replace older motors
and save significant amounts of electricity. HVAC systems
should be tuned regularly and evaluated periodically to
determine if newer equipment is a worthwhile investment. Consider installing meters to identify energy or
water usage on some equipment.
The cumulative benefits of some simple (and not so simple) energy efficiency actions add up quickly. Stonyfield
Farm reduced facility energy use by 46 million k Wh and the
associated CO2 emissions per pound of product by one
third between 1995 and 2005. This resulted in a savings of
over $1.7 million and prevented over 14,000 tons of CO2
from entering the atmosphere.
Running on Renewable Energy
Using renewable energy, also known as “green” power
(e.g., wind, solar photovoltaics and solar thermal, geothermal, biomass, some types of hydroelectric), is an opportunity for every company to cut down on emissions of greenhouse gases. Go to the U.S. Department of Energy’s website
( www.eere.energy.gov) to find out if your utility provider
offers this option or if there is a green power retailer in
With green power, documentation and audits are critical
to making sure it’s actually created, delivered to the grid
and not double counted. Purchasing through a utility company, rather than a third party retailer, is arguably the most
solid because it directly funds the additional cost for a utility to invest in green power for its service territory.
Instead of buying green power, some companies are creating their own by putting solar photovoltaics on their roofs
or over parking lots, using on-site methane sources to run
electricity generating turbines or converting wastes to electricity. Even with non-ideal sun positioning, San Francisco
Bay-Based Cowgirl Creamery was able to use solar to cut
their electric bill by 55 percent and prevent the emission of
over 70,000 pounds of carbon dioxide a year. Many companies are actually able to completely eliminate their electric
bill using solar power.
The cost effectiveness of on-site generation of renewable
energy depends on the availability of wastes, solar access
and other factors such as sub-sidies and tax
those that can’t
afford a system
of their own, e5
Clean Energy, a
Sunlight Solar helped Cowgirl Creamery cut their electric
company out bill by 55 percent even without ideal sun positioning.
For information on this
turnkey heat treatment service
call 1-800-836-7432 or visit us online at