It is interesting to study the electric cooperatives’ data publicly posted in websites. The following websites provides these data:
Primarily, the ERC data has the following columns:
1. Distribution line length in circuit-kilometers (ckm) – this item refers to the existing overhead lines owned by each electric cooperative. The data must include single-phase, two-phase and three-phase distribution circuits operated in the cooperative’s franchise area, irregardless of voltage level.
2. Number of customers – the total sum of all electric consumers in each electric cooperative service area. This may be the total of residential plus commercial plus industrial plus barangay electrification. Normally this data is the number of electric meters being maintained by the cooperative.
3. Sales volume – this data is in MWh unit. The total sales of each electric cooperative in year 2006 which was supplied to the total number of customers and which was procured from the transmission operator or other electric power supply entities.
4. Consumption per customer – this data is obtained from dividing data number 3 to data number 4. Though looking at average, this is an indicator of how much energy is utilized by each facility.
5. Structure – is the ratio of the mix of residential sales plus barangay electrification to the total energy sales. This shows on how “rural” is the service area of the electric cooperative. A higher value of structure tells us that that the service area is that the demand comprises much of residential and barangay electrification which is more rural, while a lower structure value gives an indication that the service area has commercial and industrial bulk of energy users.
6. Density - this data is MWh sales divided by the ckm of distribution lines. This reveals how much dense is the service area of the electric cooperative in terms of loading in distribution lines.
7. Distribution Supply Metering (DSM) charge – this data is presented in peso per kwh is reflected in the electric bill.
NEA has many available data but in this article we will focus only on two:
- Reliability score – ERC has promulgated reliability guidelines for electric distribution companies using standard indices. Reliability is the capability of the electric cooperative to minimize frequency and duration of unforced outage in their service area. In this data, NEA may have summarized the electric cooperative data into one single score.
- Power Quality (PQ) score – same with reliability, PQ is a performance indicator for electric distribution companies, but in this case ERC has devised their own indices. Also, NEA may have summarized the electric cooperative data into one PQ single score.
In the coming articles, I will try to analyze these data and extract technical and objective evaluation thereof.
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