On-Farm Energy Audits: Putting the Money Back in Your Pocket
An energy audit helps producers to understand how energy is used on thier farm and identifies how the operation can become more energy-efficient, according to Tonya Grunt, SEP Livestock Assistant with the Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA) in that organisation's latest newsletter.Energy is critically important to the Canadian
economy. Energy demands in Canada are increasing
and will continue to do so. As a result, it has
been predicted that the price of energy will continue
to rise as the demand for energy increases.
Energy suppliers and some consulting companies
understand the concerns numerous businesses
may have about the cost of electricity in the future,
and thus they have come up with a solution.
One of the main programmes being offered is an
on-farm energy audit to help the producer
understand problem areas at their operation and
options which could save money. The key is
to understand how your energy is being used because
if you cannot measure it, you cannot manage it.
An energy audit helps to fully understand how
energy is being used in your building as well as
identifies how the operation can become more
energy efficient. Once this is done, you can begin
to reduce the operating costs and improve
the performance of your building. Without an
energy audit, you may have no idea where the
problem areas are. Even though your building
is running well, performing an audit could help
you achieve even greater efficiencies while
reaching or even exceeding your business
goals.
Energy audits are individually tailored to
ensure coverage of each farm's primary energy
uses. This allows the audit to meet the needs of
your production site as not all producers have
the same operating systems or methods.
The amount of time and money a producer
is willing to spend will determine the detail
of the audit he or she may choose.
Another
factor could be the level of energy-efficient
machinery and equipment the operation is
currently using. At the lower price range, an
assessment can be done which covers at least a
one-year span. This is primarily a screening of
the operation which will reveal the gross usage
pattern on the account and the electricity rates.
This assessment is then analyzed to identify
any anomalies that might suggest that a more
in-depth assessment is required.
Falling within the middle of the price range is a
more detailed energy audit, which involves a visit
from an engineer. This assessment provides an
inventory of the energy consumption of equipment that is both electrical and non-electrical
(natural gas, propane, etc.). While the assessment
is being conducted, the energy engineer
will also be asking the producer questions, much
like an interview, to gain a better understanding
of equipment operation, control settings, or
anything that may affect energy consumption.
Finally, at the top of the price range is a very
detailed energy audit with monitoring of the
equipment at the operation. In order for the
monitoring to take place, a technician must
come to install the electrical metering device. To
get an accurate representation of the operation's
energy consumption, the metering is done
over a two-week period. The metering includes
equipment such as fans, water heaters, lights,
etc. The metering is important as it provides a
profile which demonstrates how the equipment
is operating when the producer or employees
are not present.
If you are interested in conducting an on-farm
energy audit, there are incentives that can help
to reduce the total cost of the audit. Incentives
are available through the utilities (i.e., Hydro
One, Union Gas, and others) that cover a portion
of the costs on electricity energy audits.
There are also prescriptive incentives available
for producers who are looking to change
specific equipment, e.g. creep heat pads, high
and ultra-high efficiency exhaust fans, natural
ventilation, lighting, etc. The incentives are
designed to help agricultural producers transition
to more energy-efficient operations.
Conducting an on-farm energy audit can be a
pricey process; however, it could result in saving
a large amount of money down the line to be
used elsewhere.
If performing an energy audit is not something
you wish to proceed with at the current time,
there are other options which could help lower
energy use. Firstly, and most simply, clean and
maintain your equipment. By cleaning and conducting
proper maintenance, you can produce
an energy saving of 40 per cent. Another option would
be to replace old equipment with energy-efficient
models. Replacing old livestock ventilation
fans is just one of the many examples where a producer could make a small change and see
a rewarding outcome.
In most cases, higher efficiency
equipment is often more expensive to
purchase than the less-efficient model; however,
with lower operating costs, the pay-back can
be witnessed within the first year of use. Other
simple changes can include changing from
incandescent lighting to a T-8 fluorescent lighting,
sealing windows with caulking and weather
stripping, and insulating hot water lines. Visit
the OMAFRA web site (click here) for a list of 25 quick tips for reducing your costs.
As an example of the potential benefits, producers
have witnessed a range of 10 to 30 per cent of savings
(depending on the initial energy use at the operation)
following on-farm audits conducted by
Agviro Inc. of Guelph. For the most part, some
recommendations can be done without having
to invest much money. Even if you have just
recently constructed your building, you cannot
assume that it is utilizing the most energy-efficient
equipment.
The 'savings in your pocket'
from doing an energy audit will vary according
to the type of equipment, the amount it operates
and the cost of the upgrade. The pay-back
can be witnessed immediately on some of the
changes (i.e., adjusting control settings) or may
range to a maximum of five years.
Bottom line, if
you do not know where the problem areas are
that are driving up your energy usage, it will be
a lot harder to find them. Get an energy audit
done to start saving sooner.
August 2012