A proposed electrification programme raised a question about how much of the network's future operating behaviour we understood. The full concept would have required a much larger commitment than the first site could justify on its own. In 2024, I supported a C$6.2 million first stage using a heat pump at one network, with existing service arrangements retained during the transition. Qualified engineering and operating teams defined the technical scope and the conditions for commissioning.
The development team wanted the first stage described as the beginning of a settled rollout. I asked for a different approval: an operating stage whose evidence could alter the subsequent programme. We specified the measurements required, the financial boundary and the questions the first review should answer. The board could then see that proceeding with the initial work did not approve every later site or resolve every remaining assumption.
During the 2025 review period, the installation delivered 3.1 GWh of metered heat and used 1.2 GWh of electricity within the stated measurement boundary. Additional electricity expenditure was C$260,000, while the estimated reduction in gas cost was C$190,000. Those figures excluded capital recovery and some shared operating costs. They therefore did not establish a complete cost comparison, but they plainly did not support a claim that substitution had automatically lowered the energy bill. We also made no verified emissions claim from those figures alone.
I reported the learning and the unfavourable cost difference together. The next proposal was revised to examine operating periods, customer demand and the cost assumptions more closely before another site was approved. That response disappointed colleagues who wanted a simple success announcement. I regarded it as the purpose of staging the investment: the first season should change the next decision when the evidence warrants it. The programme remained a transition effort with unresolved economics, not a completed proof replicated across the portfolio.
I would define the full seasonal cost account before authorising another electrification trial, so the first review can examine the original proposition without reconstructing its boundary.