Energy Audit
Energy accounting and audit services are provided for the whole or any part of the transmission and distribution network.
- Energy accounting & audit for the transmission system
- Energy accounting & audit for the distribution system, including end consumers
- Loss diagnostic studies based on an audit to assess loss levels and consumption by category for a utility as a whole, using statistical methods
Energy accounting is needed in power systems to account for energy input, output and loss. Energy audit segregates the loss into technical and non-technical components, thereby analysing the possible causes of losses.
Energy accounting and audits are effective when they can account for every unit of electricity from generation to consumption, not only for the system as a whole but for each feeder and distribution transformer (DT) as well. Moreover, the energy and loss results as assessed in the audit need to be reliable and verifiable. The challenge is to obtain audit results on a monthly basis preferably by weeks one or two of the following month.
Datagen delivers all these services. Energy audit reports delivered by Datagen contain the following information, apart from other necessary management information.
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(i) Energy input
(ii) Energy Sale (billed energy)
(a) Total number of consumers (category wise)
(b) Energy billed to each category of consumers
(iii) Total T&D loss
(iv) AT&C loss (factoring in collection efficiency in the T&D loss figures)
(v) Technical loss
(a) Technical loss in lines (voltage level-wise)
(b) Technical loss in transformers
(vi) Non technical loss
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Specialty of the service
- Monthly energy audit reports are delivered in a segmented manner (Feeder-wise, DT¬wise), covering all voltage levels up to end consumers
- Calculations are done on half-hourly load survey data. Calculations, though complicated are transparent and verifiable
- Special techniques are used to calculate monthly consumption figures from the staggered meter reading of consumers. The loss is calculated on the basis of the total monthly consumption.
- Reliable load flow techniques are used to compute technical losses for the radial distribution system
- A sensitivity analysis is carried out for assessing the range of losses, which adds credibility to the loss figures
- Energy audit reports are provided within the first two weeks of the following month
- Reports of operating parameters, supply reliability parameters, loading or overloading of different lines and transformers etc. are provided as a part of the deliverable
- Management focus reports (Summaries, Exceptions & Trends) can be drawn from the data