Medically dependent customers

A medically dependent person is someone whose health relies on a stable electricity supply to power essential medical equipment. For these individuals, a power outage could result in serious injury or even life-threatening consequences.

If you are a medically dependent customer, your doctor or specialist will provide you with a notice confirming your status. This should be passed on to your electricity retailer as soon as possible to ensure you are registered as a “medically dependent customer” on their records.

For more information about medically dependent status, please contact your electricity retailer.

We’re here to help. Get in touch if you need help. Or, check out our FAQs.

Changing electricity retailers

If you decide to change to a different electricity retailer, remember to inform your new retailer about your medically dependent status. They won’t be aware of your needs unless you tell them.

Power cuts and emergency preparedness

Power outages can occur for various reasons. Even if you are medically dependent, a continuous electricity supply cannot be guaranteed. 

It is your responsibility to have a no-power plan if the power goes out. Work with your health practitioner to develop a plan that will provide you with instructions on how to stay safe and well if the electricity supply is interrupted. For some hints and tips to help in a power outage visit our no-power planning page.

No power? What to do

You will be advised by your retailer in advance of any planned outages. Unplanned outages can happen at any time. If you are a medically dependent customer you should have a no-power plan.

Medically dependent customer FAQs

If you can’t find the answers you need, please get in touch with our team.

How can I register as a medically dependent customer?

If you or someone in your household is medically dependent on electricity to prevent serious harm to health, you should get confirmation of this from a health practitioner such as your GP.

Then, you must register as a “medically dependent customer” with your electricity company.

Does my medically dependent status change if I move house or change electricity retailers?

If you move home or switch to a different electricity retailer, you need to check with your electricity retailer that you are still registered as a medically dependent customer. 

What happens during a power outage if I am a medically dependent customer?
  • Follow your emergency response plan if the power cut puts you at risk of harm.
  • Notify your electricity company immediately so they are aware you do not have an electricity supply.
  • In a medical emergency, call 111.
How do I prove that I am medically dependent?

Your electricity retailer will be able to provide some more information about the process. You will need evidence from your health practitioner to be registered as a medically dependent customer.

We’re here to help

If you need some assistance or advice, please get in touch with our team.

Outage notifications

WEATHER RELATED OUTAGES - updated 12.00pm 29/10/2025

We’re making great progress restoring power across the network. Currently there are 85 customers without power, but we have a large number of crews in multiple locations again today.

We will have a helicopter operating in the Hurunui Mouth area around midday today. The helicopter is a twin engine and is carrying out complex river crossing repairs. It will be travelling low and slow, and it will be quite loud.

Please keep the area clear so our teams can carry out these urgent repairs to restore power to the area.

Estimated restoration times are regularly being uploaded to the Outage Map.

If you have any concerns or questions, please call our customer service team on 0800 30 90 80.

TREAT ALL POWER LINES AS LIVE AT ALL TIMES. Please stay away from any downed lines and report any sighting to us on 0800 30 90 80.

For the most recent updates on outrages, please check our outage map. To report an outage, call 0800 30 90 80.

We appreciate your understanding and patience during this time.

Is your outage not listed?

Troubleshoot your outage
Treat all lines as live during the outage period; power may be restored at any time. If you require further information, please call MainPower’s 24-hour faults line. To report an emergency, call 111.

Outage notifications

WEATHER RELATED OUTAGES - updated 12.00pm 29/10/2025

We’re making great progress restoring power across the network. Currently there are 85 customers without power, but we have a large number of crews in multiple locations again today.

We will have a helicopter operating in the Hurunui Mouth area around midday today. The helicopter is a twin engine and is carrying out complex river crossing repairs. It will be travelling low and slow, and it will be quite loud.

Please keep the area clear so our teams can carry out these urgent repairs to restore power to the area.

Estimated restoration times are regularly being uploaded to the Outage Map.

If you have any concerns or questions, please call our customer service team on 0800 30 90 80.

TREAT ALL POWER LINES AS LIVE AT ALL TIMES. Please stay away from any downed lines and report any sighting to us on 0800 30 90 80.

For the most recent updates on outrages, please check our outage map. To report an outage, call 0800 30 90 80.

We appreciate your understanding and patience during this time.

Is your outage not listed?

Troubleshoot your outage
Treat all lines as live during the outage period; power may be restored at any time. If you require further information, please call MainPower’s 24-hour faults line. To report an emergency, call 111.

Quick links