The result of a power quality audit is often a formal written report. The report may be as simple as a one or two page letter, or as detailed as a multi-section paper. Of course, whenever a written response is made to a power quality inquiry it should be filed with the utility for follow-up and reference. This lets utilities track the frequency of customer problems.
A standardized format for writing audit results should be created. This format is most easily created in a word processor using pagination, headings, logos, and descriptions of content. Keep in mind that power quality is very technical, and is often intimidating and confusing for a non-technical business person. Take care to present the audit in easily understood language and organization.
The written audit report should at least include the following sections:
- Cover Page
- Introduction and Overview
- Conclusion and Recommendations
- Customer name
- Who the audit was prepared for
- Auditor name, title, company, and address
- Other assistance providers
- Disclaimers that no assumption of liability on the part of the utility or auditor for results, conclusions, or recommendations, and
- Notification that costs presented in the report are estimates.
Audit Report Introduction/Overview
The Introduction and Overview section should provide a brief history of the events leading up to the audit work, and a description of all work that was done. Include any information which helps the reader understand the purpose and use of the audit report. Contact information for each person in the process should be put in this section. It is also a good idea to tell the reader specifically how to use the report to resolve their power quality problems.
Audit Report Findings
The Findings section should present exactly what was found in each step of the diagnostic process. For example, what types of power quality problems or disturbances were found, and where. Include specific information to help the reader understand what was done. Photos and references to specific points on wiring diagrams or facility layouts are helpful.
This section is also a good place to discuss the estimates made by facility personnel of the actual or estimated cost associated with each identified problem. This information is valuable in establishing a cost/benefit analysis and demonstrating the value of problem mitigation. This is particularly true if the solution to a specific problem involves the outlay of capital funds.
Audit Report Conclusions
The Conclusions and Recommendations section may be organized by each conclusion drawn from the diagnostic work. In this structure the rationale for each conclusion is stated, then, a specific recommendation is made. Each conclusion should state the cause of the problem, and its relative impact and importance.
Recommendations, particularly conclusions, should be described completely, and leave no ambiguity about what actions should be undertaken. In the event that more than one corrective action is applicable, provide guidance for the order in which the recommendations should be implemented. Also, indicate what should be expected when each recommendation is implemented.
If additional follow-ups are needed, these should appear as recommendations in the report. Also, be sure to include a cost/benefit analysis for each recommendation, where appropriate. Place extra graphs and data tables in the appendix. Also, a glossary of terms should be put in the Appendix, when necessary, to help the reader unfamiliar with technical terms.