The Nigerian Electricity Regulatory commissions provides a range of customer who fall under tariff classes which the Discos bill on a monthly basis and periodically for customers with prepaid meters. The classes are divided between residential customers, commercial customers, industrial customers, government agencies, religious bodies and street lights.
The classes are further divided into two main groups, the Maximum Demand Customers (MD) and the non Maximum Demand Customers (Non-MD). The major difference between MD and Non-MD customers is that the MD customers have their own individual transformers. For example a bank or estate with a dedicated transformer. Unlike Non-MD customers who share transformers with communities. Non-MD customers typically pay higher Fixed charges.
Here are their breakdowns and codes.
| MD | CUSTOMER CLASS |
| R3 | Small estate, government houses, |
| C2 | Hotels, banks |
| C3 | large supermarkets, hypermarkets |
| D2 | Large scale industrials, Metal companies |
| D3 | Oil companies, large construction companies |
| A1 | Schools, Churches and Mosques |
| A2 | Medium size barracks |
| A3 | Large barracks,large agric processing coys |
| S1 | Street lights |
| NMD | |
| R1 | Customers with consumption below 50 kilowatt |
| R2 | Customers with consumption above50 kilowatt |
| C1 | Small businesses e.g small barbing and hair dressing saloons |
| C2 | Hotels |
| D1 | Small industries e.g welders,pure water coys |
| D2 | Large scale Industries, Metal coys |
| A1 | Schools, Churches and Mosques |
…