Cash is King

Back in late September and early October FlexForum Members considered the practical implications of the flexibility-related solutions put on the table by the Energy Competition Taskforce, focusing on the opportunity to fill the holes in the value stack we found earlier in the year.

The two workshops raised a bunch of questions, particularly about the solutions to require distributors to pay a rebate when consumers export electricity at peak times, require retailers to offer a time-of-use pricing and to require retailers to better reward consumers for supplying power. We shared everything with the Electricity Authority, including several fundamental questions left hanging. These questions, which go to the heart of the workability and impacts of the solutions include:

  • Do customers mainly buy batteries for managing their own consumption and care little about revenue from exporting? What does this imply for the extent to which a peak-based export rate will change customer decisions?
  • Should a peak export rate for batteries have to be targeted at particular network areas, even if the peak consumption rate isn’t?
  • How important is understanding likely customer response for implementation of TOU Tariffs? How do we manage the issue of creating new/secondary peaks with TOU tariffs?
  • Will increasing the buyback rate lead to a significant enough uptake of solar to create voltage problems on distribution networks? Will this consequently drive costs up? Are there other ways distributors could manage voltage problems driven by solar (eg, dynamic operating envelopes, runback during peak export times)?

Members came back for more on 19 November to identify what solutions FlexForum would suggest to fill those value holes. About 30 people from across the ecosystem turned out for a healthy conversation about:

  • A checklist for deciding if a hole in the value stack is filled
  • An initial assessment of how well existing value mechanisms provide a cash signal, are accessible and experience-able
  • The problems being solved…
  • Mechanisms or arrangements to solve those problems.

Sorting out the value stack is critical to people saying yes to flex and maximising the potential for flexibility to avoid a decent chunk of the $300 billion which people and the power sector are estimated to spend next 25 years to 2050 on generation and network infrastructure to replace fossil fuelled gear.

Efficient pricing across the value stack requires a cash signal, that is accessible, and experience-able. As a Member said, ‘Cash is king. Good place to start.’.
We proposed a hole in the value stack can be called filled when Yes is the answer to each of these questions.

  1. Is there a cash signal which accurately and routinely monetises the value of the activity by motivating specific actions, ie, shape, shed, shift or shimmy.
  2. Is the value of the cash signal easily and routinely accessible to someone who can respond on behalf of the resource owner or can pass the signal to the resource owner.
  3. Is the person best able to respond to the signal able to experience the signal. 

It’s a pretty complex area, and the conversation suggested refinements to make the 3 questions clear, but Members reckoned the traffic lights broadly aligned with their lived experience. 

We will be refining and elaborating on our thinking in the coming weeks. However, at first blush, the questions and approach give a pretty clear steer about where to focus effort to fill holes in the value stack to enable people and the electricity sector to maximise the value of flexibility and deliver a more affordable, reliable and resilient and sustainable power system and economy.

Get in touch to tell us what you think: info@flexforum.nz

Our Members

Our Observers

Get involved. We bring expertise from across the electricity ecosystem to find answers to the most challenging problems. Your views and experience will enable faster and better outcomes.
Signup For News & Events