Process heat

Process heat is the energy used in the form of steam, hot water or hot gases in industrial processing, manufacturing and for heating rooms/spaces. About half of New Zealand’s process heat demand comes from burning coal or oil, and it contributes 27%* of our energy-related greenhouse gas emissions. Process heat represents New Zealand’s second biggest opportunity (behind transport) to reduce emissions as we transition to a low-emissions economy.

* Based on 2016 figures: EECA’s Energy End Use Database

Process Heat in New Zealand (PHiNZ)

EECA, together with the Ministry of Business, Innovation and Employment (MBIE) is working on a process heat initiative, called Process Heat in New Zealand (PHiNZ). PHiNZ is investigating opportunities to increase the energy efficiency of process heat, increase renewable sources of energy and reduce emissions in process heat.

Visit MBIE’s web page on PHiNZ via the link below. PHiNZ has produced a technical paper Process Heat in New Zealand: Opportunities and barriers to lowering emissions.

Process Heat in New Zealand - MBIE website

PHiNZ: Barriers to lowering emissions - Technical paper - MBIE website

The following fact sheets summarise how process heat is being used in New Zealand, including energy demands and related greenhouse gas emissions.

Process Heat – Overview fact sheet

Dairy manufacturing fact sheet

Indoor cropping factsheet

Meat and meat product manufacturing fact sheet  

Petrochemical industry fact sheet

Wood processing fact sheet

EECA work on process heat

Energy Transition Accelerator (ETA) – EECA is piloting a new programme for large energy users to develop long-term plans for transitioning to lowering emissions as much as possible.

Technology demonstration programme – EECA helps to co-fund and de-risk new technologies that have yet to be tried and tested in New Zealand. It has a specific investment focus on innovative electric heat pump technologies.

Find out more here.

International technology scan – EECA has investigated available commercial technologies to save energy and costs are available, but currently underutilised in New Zealand.

Bioenergy analyses – EECA is analysing the regional and site-specific availability of biomass fuel (with Scion) for large process heat users with potential to switch from fossil fuels.

PWC analysis on process heat decision-making

EECA commissioned PwC to find out how large process heat users are investing in process heat improvements. PwC identified that there is an energy efficiency ‘gap’ in investment in more efficient and renewable energy technologies and practices.

PWC analysis on process heat decision-making

EECA Business resources

Information and resources on process heat systems, including technical guides.

Process heat systems - EECA Business website

Technology demonstration fund -  EECA Business website