Stage 1 Audit
This comprehensive audit consists of three primary steps:
the operations review, the assessment and the walk-through
audit.
- The operations review is a detailed interview
with management and operations personnel to gain insight
into the current status of a facility’s energy program.
The interview typically covers issues such as existing efficiency
programs, energy management programs, maintenance practices
and other programs that are currently employed to control
consumption and costs.
This interview is also used to identify
any specific problems that plant personnel are aware of
in the use of energy and discover future plans being contemplated
that may affect energy usage.
- The assessment includes
a tabulation of the types of energy used by all processes
at the facility and a detailed review of energy bills from
suppliers along with a rate analysis to determine if there
are possible savings associated with changing rates or modifying
the character of service received from an energy supplier.
The assessment also includes a review of energy contracts
with all suppliers and service providers.
- The walk-through audit is a visual inspection
and observation of manufacturing operations and processes
to identify specific uses of energy. It involves some collection
of data and information to evaluate potential savings and
to determine if a more detailed analysis is required that
may lead to additional energy saving opportunities.
|
|
Stage 2 Audit
This type of audit requires
tests and measurements to quantify energy uses and losses
and determine the economics for changes in either processes
or equipment.
This type of audit typically includes a comprehensive
energy balance for the entire plant and/or specific processes.
Stage 3 Audit
This type of audit contains
an evaluation of the quantity of energy used for each function
such as lighting, process equipment, boilers, etc.
It requires
a model analysis, such as a computer simulation, to determine
energy use patterns and predictions on a year-round basis,
taking into account such variables as weather data and production
cycles.
|
