ESE Heating Indicator

Notes

  • When a home is switched from gas or oil heating to electric heating, the home’s electrical power requirements increase
  • Increasing the power requirement, increases the demand on your home’s electricity service – i.e. the wiring and infrastructure that connects your home to Jersey Electricity’s electricity network.
  • This indicator tool gives an initial assessment of whether an electricity service is adequate for the increased power requirement of a new electric heating installation. 
  • Before you connect any additional load / electric heating, Jersey Electricity must also review the capacity available on the local electricity network. You must complete an ESE form to confirm what you intend to connect before any work is carried out.
  • This tool can be used by any competent person who understands electrical loads and power ratings. If in doubt, contact your electrical contractor or building services professional.

What is the fuse rating of the home?

A property’s fuse rating can be found on the electricity bill

Are you planning to install 12kW of electric heating or less?

Are you planning to install 14kW of electric heating or less?

Are you planning to install 21kW of electric heating or less?

Are you planning to install 30kW of electric heating or less?

Are you hoping to install 14kW of heating or less?

Your service cannot currently support your electric heating requirement

What does this mean?

  • Your home’s existing electricity service is not currently robust enough for the electric heating you are considering
  • You can consider
    • It may be possible to upgrade your home to a three phase supply, there may be a cost involved if an upgrade is required and you will need to submit an ESE form
    • Reducing the size of the electric heating required by insulating your home, to reduce your requirement to less than 14kW
  • To approve your heating for connection we also need to assess the electricity network in your local area
  • You must submit an ESE form before installing your electric heating to ensure the electricity network has enough capacity to serve your home

Are you hoping to install 30kW of heating or less?



Your service may not support your electric heating requirement

What does this mean?

  • Your home’s existing electricity service may not be robust enough for the electric heating you are considering
  • You can consider
    • We may require further detail on the both the proposed and existing electrical loads to determine available service and network capacity and any possibility to allow >30kW on existing service.   
    • It may be possible to upgrade your home to a commercial size supply, there will be a cost involved if an upgrade is required and you will need to submit an ESE form
    • Reducing the size of the electric heating required by insulating your home, to reduce your requirement to less than 30kW. To approve your heating for connection we also need to assess your local network
  • You must submit an ESE form before installing your electric heating to ensure the electricity network has enough capacity to serve your home

Your service can support the electric heating you have specified

What does this mean?

  • Your home’s electricity service is robust enough for the electric heating you are considering
  • To approve your heating for connection we also need to assess the electricity network in your local area
  • You must submit an ESE form before installing your electric heating to ensure the electricity network has enough capacity to serve your home

You may need a 100A service for your electric heating

What does this mean?

  • Your home’s existing electricity service may not be robust enough for the electric heating you are considering
  • You can consider
    • It may be as simple as upgrading your fuse from 60A to 100A, there would be no cost for this upgrade but you will need to submit an ESE Form.
    • It may be necessary to upgrade your home to a 100A supply, there may be a cost involved if an upgrade is required and you will need to submit an ESE form
    • Reducing the size of the electric heating required by insulating your home, to reduce your requirement to less than 12kW
  • To approve your heating for connection we also need to assess the electricity network in your local area
  • You must submit an ESE form before installing your electric heating to ensure the electricity network has enough capacity to serve your home

Your service can support the electric heating you have specified

What does this mean?

  • Your home’s electricity service is robust enough for the electric heating you are considering
  • To approve your heating for connection we also need to assess the electricity network in your local area
  • You must submit an ESE form before installing your electric heating to ensure the electricity network has enough capacity to serve your home

Your service can support the electric heating you have specified

What does this mean?

  • Your home’s electricity service is robust enough for the electric heating you are considering
  • To approve your heating for connection we also need to assess the electricity network in your local area
  • You must submit an ESE form before installing your electric heating to ensure the electricity network has enough capacity to serve your home
  • Your heating must be balanced over the three phases and not placed on a single phase.

You will need a Three Phase 100A service for your electric heating

What does this mean?

  • Your home’s existing electricity service is not currently robust enough for the electric heating you are considering
  • You can consider
    • It may be possible to upgrade your home to a 100A three phase supply, there will be a cost involved if an upgrade is required and you will need to submit an ESE form
    • Reducing the size of the electric heating required by insulating your home, to reduce your requirement to less than 21kW (balanced over 3 phases)
  • To approve your heating for connection we also need to assess the electricity network in your local area
  • You must submit an ESE form before installing your electric heating to ensure the electricity network has enough capacity to serve your home

Your service can support the electric heating you have specified

What does this mean?

  • Your home’s electricity service is robust enough for the electric heating you are considering
  • To approve your heating for connection we also need to assess the electricity network in your local area
  • You must submit an ESE form before installing your electric heating to ensure the electricity network has enough capacity to serve your home

Your service can support the electric heating you have specified

What does this mean?

  • Your home’s electricity service is robust enough for the electric heating you are considering
  • To approve your heating for connection we also need to assess the electricity network in your local area
  • You must submit an ESE form before installing your electric heating to ensure the electricity network has enough capacity to serve your home
  • Heat pumps can cause voltage issues on our network, your ESE is more likely to pass if the heat pump you choose has a soft-start function / low starting current

 

Your service cannot currently support your electric heating requirement

What does this mean?

  • Your home’s existing electricity service is not currently robust enough for the electric heating you are considering
  • You can consider
    • It may be possible to upgrade your home to a three phase supply, there may be a cost involved if an upgrade is required and you will need to submit an ESE form
    • Reducing the size of the electric heating required by insulating your home, to reduce your requirement to less than 14kW and upgrading to a 100A single phase supply, or less than 12kW on the current 60A supply.
  • To approve your heating for connection we also need to assess your local network
  • You must submit an ESE form before installing your electric heating to ensure the electricity network has enough capacity to serve your home

Your service can support the electric heating you have specified

What does this mean?

  • Your home’s electricity service is robust enough for the electric heating you are considering
  • To approve your heating for connection we also need to assess the electricity network in your local area
  • You must submit an ESE form before installing your electric heating to ensure the electricity network has enough capacity to serve your home
  • Heat pumps can cause voltage issues on our network, your ESE is more likely to pass if the heat pump you choose has a soft-start function / low starting current

Your service can support the electric heating you have specified

What does this mean?

  • Your home’s electricity service is robust enough for the electric heating you are considering
  • To approve your heating for connection we also need to assess the electricity network in your local area
  • You must submit an ESE form before installing your electric heating to ensure the electricity network has enough capacity to serve your home
  • Heat pumps can cause voltage issues on our network, your ESE is more likely to pass if the heat pump you choose has a soft-start function / low starting current
  • Your heating must be balanced over the three phases and not placed on a single phase.

Your service cannot currently support your electric heating requirement

What does this mean?

  • Your home’s existing electricity service is not currently robust enough for the electric heating you are considering
  • You can consider
    • It may be possible to upgrade your home to a commercial size supply, there will be a cost involved if an upgrade is required and you will need to submit an ESE form
    • Reducing the size of the electric heating required by insulating your home, to reduce your requirement to less than 21kW (balanced over 3 phases). Or upgrading your supply to a Three Phase 100A supply and reducing your requirement to less than 30kW.
  • To approve your heating for connection we also need to assess the electricity network in your local area
  • You must submit an ESE form before installing your electric heating to ensure the electricity network has enough capacity to serve your home

Your service can support the electric heating you have specified

What does this mean?

  • Your home’s electricity service is robust enough for the electric heating you are considering
  • To approve your heating for connection we also need to assess the electricity network in your local area
  • You must submit an ESE form before installing your electric heating to ensure the electricity network has enough capacity to serve your home
  • Heat pumps can cause voltage issues on our network, your ESE is more likely to pass if the heat pump you choose has a soft-start function / low starting current