Energy Auditing
and
Energy Management Services
energy-i are the first choice for
industry when it comes to Energy Auditing and Energy Management services.
energy-i are specialists in all
aspects of industrial energy usage including the cost-effective performance of
Energy audits.
We perform energy audits to a customer specification
The audit and survey is based on energy bills, metered consumptions,
and on-site monitoring using the latest data-logging technology.
The
following is our typical energy-i scope
of work for an energy audit.
The scope
is based on the recommended brief for a comprehensive energy audit and survey
set out in
CIBSE AM5 1991 - Energy Audits and Surveys.
CONTACT US for further
details or for a competitive quotation.
ENERGY AUDIT - TYPICAL SCOPE OF WORK
1.0
INTRODUCTION
A description
of the site from an energy perspective, including functions and services.
2.0 EXECUTIVE SUMMARY OF SURVEY AND RECOMMENDATIONS
A brief
summary of the report outlining potential energy savings identified by the
audit and survey.
3.0 OBJECTIVES OF AUDIT AND SURVEY
Provide
an audit of site energy usage.
Identify
areas of potential energy cost savings
Provide
an estimate of potential annual energy savings with order of magnitude costing
(OMC) and payback analysis.
Identify how
methods of energy management should be developed to achieve, maintain and
recognise further potential savings.
4.0 ENERGY AUDIT REPORT
4.1 Site Information
Summary
of information pertaining to energy use on the site.
4.2 Energy Audit
Audit and
analysis of information obtained from energy and fuel bills, metered
consumptions, logged data, observations and calculations. The following shall
be produced for the final report;
A table
summarising all energy intakes to the site
A table listing
the current cost of all energy sources on site expressed in SI units.
A table
showing the percentage changes in energy costs over the previous three years.
A
comparison of the complied energy usage data with comparable industry
performance indicators.
4.3 Energy Use Survey
A
comprehensive survey of energy used on site will be carried out under the
following headings;
4.3.1 Electrical power and lighting.
Maximum
demand profile analysis over 7 days
Supply tariff
analysis, and recommendations optimising operations to make maximum benefit of
the tariff.
Power
factor analysis
Assessment
of motor drives and potential for installation of VSDs or soft starts.
Assessment
of type, condition, siting and switching arrangement of existing lighting and
possible replacement with high efficiency lamps.
Assessment
of unnecessary use of lighting and power equipment with particular attention to
electric heating equipment.
4.3.2 Thermal Energy
Site
steam load analysis.
Site steam
distribution system assessment.
Pipework
and insulation assessment.
Steam
trap condition assessment.
Boiler
plant assessment.
Control
systems assessment.
Waste
heat recovery analysis.
4.3.3 Air conditioning and ventilation
Analysis
of heating and cooling loads
HVAC
control system assessment
Ductwork
assessment
Analysis
of the performance and loading of HVAC chillers and compressors.
HVAC
piping insulation assessment.
Analysis
of the potential for waste heat recovery.
4.3.4 Space heating and hot water
Assessment
of heating systems installed.
Assessment
of heating controls, including recommendation on upgrades where appropriate.
Assessment
of pipework and insulation
4.3.5 Compressed air
Analysis
of plant compressed air demand
Evaluation
of duty factor for plant air compressors.
Assessment
of air compressors condition including intake efficiency.
Assessment
of control systems
Assessment
of compressed air piping and leakage.
Evaluation
of opportunities for waste heat recovery.
4.3.6 Process Refrigeration plant
Analysis
of plant cooling demand and compilation of a list of all refrigeration plant on
site.
Assessment
of energy consumption of the plant, including patterns of use
Assessment
of installed plant including age and condition
Assessment
of possible required future plant replacement due to phase out of CFC and HCFC
gasses. Recommendations on energy efficiency for new plant where appropriate.
Assessment
of control systems.
Investigation
of opportunities for heat recovery, including absorption refrigeration using
waste heat as an energy source.