JW+A professionals perform energy audits according to ASHRAE’s “Procedures for Commercial Building Energy Audits” and proprietary methodology based on data analysis and dedicated software.
What is an energy audit and what benefits does it bring?
Energy audit is a multi-stage procedure to optimize energy consumption and reduce energy costs.
The audit aims to analyze and implement optimization in the functioning of the building and eliminate irregularities in the operation and control of equipment. A properly performed energy audit allows you to:
- Analyze and understand how energy is consumed
- Improve operational efficiency and save operating costs, energy, and reduce carbon footprint,
- Select the most beneficial energy savings opportunities that require capital investment.
How to perform an energy audit?
JW+A specialists perform energy audits for facilities of varying function and size, and the scope of their work is tailored to the specific building and client needs.
The audit may include three different levels, depending on the degree of accuracy and the scope of support. Prior to conducting a building audit, JW+A specialists work with the customer to determine the appropriate level of engagement, through a preliminary energy consumption analysis and a comparison of the energy consumption of the analyzed building with that of reference buildings of similar function and size (Benchmarking).
This allows you to determine how your building performs compared to similar facilities on the market and to make an informed decision on which level of audit is necessary and will yield the greatest benefit.
Level 1: Operational efficiency audit
The level one energy audit focuses on optimizing operational parameters. The audit process starts with an energy cost analysis for a selected period (up to 36 months) and the preparation of an energy consumption distribution analysis by type of consumption.
JW+A specialists then perform a walk-through of the building, where through observation, measurement and discussions with staff they analyse the possibilities of operational authorisation of the building. The next step of the audit is to prepare a summary report, which includes conclusions and recommendations for no or low cost efficiency improvements and the estimated savings from their implementation.
The final step is to discuss the report and support JW+A specialists in the implementation of individual recommendations.
The intended outcome of a level one audit is savings resulting from optimizing the operation of existing equipment and building operations without additional financial outlays.
After completing the level one audit, the step to achieve further energy savings is to perform a level two audit.
Level 2: Detailed Systems Audit
A level two energy audit includes all the activities covered by the level one audit and a detailed analysis of the status and operating efficiency of the energy consuming systems.
The main element of the audit is the verification and analysis of the proper functioning of individual systems responsible for energy consumption in the building, including the control mechanisms, supported by measurements and detailed calculations. The analysis is accompanied by calculations of energy savings and determination of the payback period for individual measures. An audit at this level identifies not only simple savings resulting from changes in settings or schedules, but also identifies further steps to achieve savings that require financial outlays.
The outcome of an audit at this level is the identification of energy saving measures related to capital investments, such as replacement of equipment or components, or decisions on renovation measures. It is essential to prioritize the suggested actions based on the payback time of the investment and the assistance of JW+A specialists to implement the changes in the facility.
Level 3: Energy management
Level 3 Energy Management includes operational support for energy management by monitoring, reading and analyzing trends, and benchmarking building energy consumption.
The use of smart metering and advanced analytical tools allows you to control energy consumption in real time, generate alarms, compare actual with expected consumption and create reports.
We invite you to contact and determine what level of audit is appropriate for your facility.
Energy audit is the basis for making informed decisions on optimizing the cost of energy consumption in the building. Often, already the implementation of the audit at the first level allows for simple no or low cost changes to achieve significant savings in energy consumption, which translates into lower building maintenance costs.