Understanding connection capacity
What connection capacity should you apply for?
We provide connections designed to handle different levels of electricity usage. When applying for a new connection, you need to let us know the maximum electricity demand level that you will require. This level is written into your connection agreement as the MIC (Maximum Import Capacity). We then design our network to provide a connection method suitable to the agreed MIC.
The total electrical load being connected should be carefully considered. You should consult with your electrical contractor to get the information needed to complete your New connection application form. You can print out the information you will need here and add it to your application when you are ready.
Quick guide
| What connection capacity should I apply for? | 12kVA (Standard) | 16 kVA (Enhanced) |
|---|---|---|
| Maximum demand (Averaged over 10 minutes) | 52 Amps | 70 Amps |
| Maximum switched load excluding motors* (e.g. Electric Shower) | 9 kVA | 12 kVa |
| Limits on motor size / operation: | ||
| Motors that start > 4 times per hour max rating | 0.75 kW | 1.1 kW |
| Starting > twice per day and </= 4 times per hour Max Starting Current** | 26 Amps | 40 Amps |
| Motors that start </= twice per day max Starting Current** | 42 Amps | 63 Amps |
| Maximum storage heating | 9 kW | 12 kW |
| ... in simple terms | |
|---|---|
| 12 kVA | Suitable for an average sized domestic dwelling where no farming related activities are to be carried out and where no more than 9kW of night storage heating is to be installed. |
| 16 kVA | Suitable for dwellings where it is intended to use the connection for farm machinery or light welding. Should also be considered where between 9kW and 13kW of night storage heating or large heat pumps are to be installed. |
Notes:
- 3 Phase supply may be required for larger motors greater than 5 HP, or processes that require multiple loads operating at the same time.
- *More than one switched load can be installed provided they are configured such that max demand is not exceeded.
- **Soft Starter can be used to restrict starting current.