"Be Energy Efficient, Cut Your Energy Cost "
Energy Audit means the verification, monitoring and analysis of the use of energy including submission of technical report containing recommendations for improving energy efficiency with cost-benefit analysis and an action plan to reduce energy consumption. Other than energy concern, the energy audit also helps in reducing fossil-fuel consumption and emission of harmful gases. An improvement in energy efficiency within your organization can potentially bring significant business benefits. With a focus on energy efficiency, we are providing energy audit services to help our clients in reducing energy consumption and energy cost. We are committed to giving the most promising solutions that improve energy efficiency and bring sustainability. Energy audit services are a key part of our dedicated energy efficiency services and the first step towards comprehensive energy management strategy of any organization.
We employ a systematic approach that goes beyond equipment efficiencies and estimates the overall system efficiencies of important processes and supporting utilities. This approach helps identify inefficiencies and hidden losses that may exist due to the design philosophy, system design, existing equipment design and/or operating practices.
Our energy audit:
- Establishes a energy consumption baseline using monthly energy usage
- Evaluates the energy consumption of various equipment’s/machines
- Power and fuel assessment study
- Compressed air system study
- Identifies ways to enhance operational efficiency and decrease maintenance costs
- Resolves occupant comfort issues.
- Identifies economically feasible ECMs
The output of energy audit is a technical report containing
- Detailed view of the current energy consumption pattern
- Performance evaluation, heat balance and identification of losses.
- Identify opportunities and create solutions to reduce energy use and hence energy cost.
- Financial analysis of each solution (Payback period or ROI)
Power and fuel assessment
Equipment energy efficiency study
Compressed air system study
Process energy study
Energy saving assurance study
Heat recovery study
ASHRAE Energy Audit
ASHRAE (American Society of Heating, Refrigeration and Air-conditioning Engineers) defines best practices for energy audits and assessments. As per ASHRAE standards, there are three types of audits as given below.
- ASHRAE Level 1: Walkthrough/ Preliminary Audit
Level 1 audit involves an analysis of historical energy use, a review of energy bills, operating data, discussion with plant personnel and a walkthrough of the facility. This helps to identify few areas where there is a potential for energy savings. Energy consumption pattern is typically benchmarked against a similar type of facility to determine potential capital improvements for further assessment. Preliminary audit helps to plan a detailed study of the facility and gives an idea of the possible energy conservation measures which can be implemented.
- ASHRAE Level 2: Energy Survey and Analysis
Level 2 audit includes Level 1 practices and procedures but also includes a more detailed evaluation of system/process and cost-benefit analysis of the proposed energy conservation measures. The cost-benefit analysis of the proposed energy conservation measures helps the client to have an idea about the return of investment. Sufficient details are provided to justify the proposed energy efficiency projects.
- ASHRAE Level 3: Detailed Analysis of Capital Intensive Modifications
Level 3 audit focuses an on analysis of potential capital intensive projects identified in the ASHRAE Level 2 Audit. There is a more detailed field study which will be a long term study of the facility to gather more data. Long term trend data of systems installed in the facility is collected or recorded for detailed analysis and identification of energy conservation opportunities. Detailed analysis of the installed systems in the facility helps to understand the operating efficiency/performance of various installations. The cost-benefit analysis will be more detailed and more accurate since the analysis is based on large data recorded or collected from the plant.
Retro-Commissioning is the process of improving the energy efficiency of systems or equipment in an existing building. Retro-Commissioning will help to reduce the operating cost, increase the occupant comfort and reduce the maintenance cost by analyzing the building's current performance and optimizing the operations. It can address the problems that have developed during the lifetime of any building. Other than problems due to aging, the troubles occurred during the design or construction can be also resolved with Retro-Commissioning.
Some of the common problems that Retro-Commissioning can resolve includes:
- VFD running without proper feedback
- Overcooling and overheating issues in AHUs
- Lamps running even when enough sunlight is available
- Improper chilled water temperature settings in chillers
- Equipment operating at part load and consuming full load energy
- Improper control settings and circuits and much more...
All these issues arise when the systems undergo operational changes throughout the year and lack of proper design or construction. The energy efficiency of all systems reduces with aging and the improvement in performance can be achieved by the thorough study of the operating conditions and requirements. Retrofit-Commissioning is a better solution to identify and fix the problems discussed above to reduce energy consumption and to improve the comfort level of occupants.