How to use your Wastewater to Heat Buildings

How to use your Wastewater to Heat Buildings

Date: Weds, 27 May 2020

Time: 10:30 AM – 11:30 AM

Pricing: This webinar is sponsored by Applied Energy so is offered completely free of charge. Please note it will not be made available as a recording after it is broadcast live. If you can't make the live event please let us know at and we will refer you through to Applied Energy who will be happy to share the information with you. 

Booking details: Register via Zoom here. If you have any problem registering through Zoom, please email and tell us what event you'd like to attend. Note, if you do not register, you will not have access.

N.B. This webinar will be held using Zoom, so if you haven't used Zoom before, please refer to this handy starters guide.

How to use your Wastewater to Heat Buildings

Would you like to find out how you can turn your wastewater into free energy?

In New Zealand, 30% of all the energy used in houses is turned into heat in hot water cylinders. This energy is then donated for free to Councils as it flows down the drain. Your wastewater pipes are therefore a huge collection system and reservoir of heat energy.

  • In Auckland alone, this energy has a value of $1M every day.
  • Wastewater Heat Recycling is a perfect match for Aquatic Centers, which are often one of the biggest energy consumers for Councils.

Wastewater heat recycling started around 30 years ago in Europe. Today there are estimated to be over 1000 installations in operation around the world.

What are you doing with the free energy in your wastewater pipes? Flushing it away and wasting it?

With a need to reduce our environmental impacts and infrastructure investments being looked at all over NZ as part of the COVID recovery, now is the time to think holistically and build back better infrastructure.

Learning Outcomes

By the end of this webinar, you will be able to consider how to:

  • reduce your energy costs and carbon emissions; and
  • use your wastewater network as an energy source.

Webinar Purpose

 This webinar will:

  • explain the concept of how this heat energy can be recycled for heating buildings, including industrial buildings;
  • show real examples of this in action;
  • describe wastewater network heat mapping projects;
  • demonstrate value achieved in New Zealand with projects undertaken by Applied Energy; and
  • discuss possibilities for generating a new revenue stream from this energy.

Recommended audience:

This webinar is only available to local and central government employees or elected members and is suitable for:

  • Local and Central Government Elected Officials
  • Local Government Wastewater Staff
  • Local Government Buildings Staff
  • Local and Central Government Energy and Sustainability Staff


Nick Meeten

Nick Meeten has been working in wastewater heat recovery for over 10 years and been involved in more than 80 projects worldwide. He was invited to contribute on this topic to the United Nations flagship report ‘District Energy in Cities’. He also contributed to a Smart City report for the UK Government and has presented at more than 20 conferences on this topic.