You engage with a renewable energy retailer or supplier to buy energy in a way that meets your goals.

You, the supplier, and the underlying generation are registered, and the purchase is tracked on the NZECS.

The attributes of this energy are removed from the market, so that no one else can claim it, and no double-counting occurs.

The New Zealand Energy Certificate System (NZECS) is the registry platform developed and operated by BraveTrace. The NZECS enables consumers to claim ownership of energy production attributes from specific generation facilities. The system does not change the electrons that are supplied to you via the national grid.

FAQs

Energy certificates are used around the world to trace ownership of energy generation attributes. Recently introduced in New Zealand, some concepts can be unfamiliar. Some common questions are answered below.

BraveTrace aims to promote the production of renewable and zero carbon energy, as part of helping New Zealand reach its zero-carbon goals. As different sectors of the economy switch from carbon-based fuels, demand for electricity will increase. Energy certificates are part of the overall solution, which also includes energy efficiency and conservation, and other capital investments which reduce the amount of greenhouse gases emitted.

The BraveTrace System was established to support renewable generation. It will do so by reducing ‘double-counting’ of positive generation use, increasing awareness of how electricity is generated in NZ, and returning additional proceeds to operators and developers of renewable generation.

As well as offering certificates from existing renewable generation such as hydro dams and wind generation, BraveTrace works with small-scale projects including solar farms and community projects. Revenue from certificates gives them the ability to reinvest in further development and scale up faster.

If you are an organisation looking to join the BraveTrace Network by purchasing NZ-ECs to accelerate the renewable transition, here’s how:

1. Select your Participant

The first step in the process is for you to select a Participant who will act on your behalf throughout the process. They will register you on the NZECS and procure NZ-ECs for you. You may select a Participant that is your energy retailer (if they are not registered on the NZECS yet, you could suggest to them that they do), or any registered independent brokers. 

2. Complete the Form

Your Participant will then share and assist you to complete the ‘BraveTrace NZECS Energy User Registration Form’ and purchase NZ-ECs for you. Once your registration has been approved by BraveTrace, you have officially joined a network of hundreds of forward-thinking businesses committed to accelerating the renewable transition!

3. Enjoy the Benefits

  • Visibility: Your logo will be proudly featured on the BraveTrace homepage and Network webpage.
  • Recognition: We’ll highlight your support for renewable energy in our newsletter and social media.
  • Verification: Report zero Scope 2 emissions under international standards, and receive a detailed BraveTrace report to verify this.
  • Inspiration: Collaborate with us on a case study to showcase your leadership and inspire others in your industry and value chain.

Join us today and be part of the movement promoting decarbonisation and accelerating the transition to a renewable future! For any questions, please email us at .

If you are an a renewable generator (Registrant) or a retailer/broker (Participant) looking to join the BraveTrace Network, here’s how:

Email us at to join, we’d love to assist you with the process. For more details, click here.

There are multiple benefits from energy certificates: Awareness, understanding, avoiding double-counting, as well as the financial benefits and the potential to increase new generation.

We are in a time of unprecedentedly high awareness of emissions and demand for reduction in New Zealand. This environment makes it more likely that organisations will support building new generation through the NZECS and create a positive impact. Voluntary certificate schemes may not have the same impact internationally as mandated equivalents such as Renewable Portfolio Standards (RPS), but we believe that the NZECS will contribute to positive change and a voluntary scheme is the right way to start the ball rolling in New Zealand.

There are a number of articles that support both voluntary and mandatory schemes as having positive impact:

We see an important benefit of the NZECS is improving consumer understanding of the relationship between electricity and emissions. Poor understanding is a recognised problem globally, as is double-counting. Organisations that assume the grid supply is carbon-free may report their Scope 2 emissions factor as zero. These are the sorts of misunderstandings we are keen to help correct.

The NZECS is the trading system for certificates and provides an open platform to all participants in the energy market to engage in attribute transfer via these certificates.

The system is run by BraveTrace, a commercial, for-purpose entity. Its core purpose is to support social and environmental benefits, by encouraging increased renewable and zero-carbon generation, and particularly projects that have co-benefits such as increasing local employment or reducing energy poverty.

In countries where governments have particular policy goals it is common for certificate use to be mandated by legislation. This is the case in Australia, Sweden, the US and EU member states. While this is common, it is equally possible for a market to determine the value of certification for themselves.

Once a need is established, energy certificate markets are often serviced by commercial businesses. There are a number of commercially-run registry providers internationally. A good example of this is Grexel, the largest provider of registry services internationally.

At BraveTrace, we take pride in encouraging registered generators to track and allocate the revenue they get from energy certificates into growing and developing further renewable energy generation or other decarbonisation efforts, or other projects with social or environmental benefits. In many cases, the sale of certificates will have been factored into calculations on a project ROI, helping the project get established in the first place.

No certificate systems in the world mandate a specific use for sale proceeds so technically, companies that sell certificates are free to use the revenue from them as they wish. However,  it’s not just about certificates for us at BraveTrace which is why we encourage our network to promote renewable energy through certification — for us, first and foremost, it’s about driving measurable, sustainable change for Aotearoa New Zealand’s energy future!

In order to reach New Zealand’s zero-carbon goals, everyone in the energy sector has a part to play. As more users switch from carbon-based fuel to using electricity, demand for electricity will go up. Energy efficiency and conservation initiatives have a really important part to play in making sure that demand does not go up unnecessarily, and we all have a role to play in supporting the growth of renewable electricity generation.

As the provider of the NZECS Registry, we do not sell New Zealand Energy Certificates (NZ-ECs) ourselves. However, information from the market indicates that energy certificates in New Zealand typically trade between NZ$3 up to around NZ$15 (as of December 2024).

The price of NZ-ECs are negotiated between buyers and sellers, so are commercial in confidence. BraveTrace is not involved in this negotiation and is not notified of the price of NZ-ECs. We are aware though that the following factors influence the price of NZ-ECs:

  • Supply and demand at the time
  • Cost of carbon in the NZ-ETS
  • Smaller volumes often trade at higher prices due to fixed transaction costs
  • NZ-ECs from newer production devices (aligned with standards like RE100) often sell at a premium
  • Prices may also vary based on energy users’ requirements (new-build projects, local sourcing, community and nature co-benefits, decarbonisation funds, etc)

As the system grows, BraveTrace will develop and evolve the NZECS in line with the needs of the country. We have already asked for feedback from experts as the scheme was being established and have incorporated improvements as needed. We will evaluate potential system / rules changes, consult on these changes with the market and key industry stakeholders, and implement the appropriate ones. Some things we plan to closely investigate are baseline years (or certificate classes), granular reconciliation, and supplier portfolio certification.

The certificates are in megawatt-hours. For every megawatt-hour of renewable electricity produced during a year, the generators can sell one megawatt-hours-worth of renewable attributes, in the form of a certificate.

BraveTrace is the company that operates the NZECS. Some participants may be more familiar with the name NZECS as that is what they interact with for the certificates.

Want to learn more about the technical aspects? Our resources page covers topics of system design, production phases, residual supply and more.

Our Resources

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