Grid investment is a queue, a regulated asset, or a merchant bet

themePublished 19 October 20262 min readequities

Key points

• A regulated grid, a merchant cable and an equipment supplier do not earn the same kind of return.
• The IEA puts copper at around 10 to 15 percent of transformer and power-cable prices.
• No national grid investment total is stated.

What is going on

The only quantified equipment fact used here is from the IEA critical-minerals executive summary: copper accounts for around 10 to 15 percent of transformer and power-cable prices. The rest of the price is other metal, labour, engineering and the manufacturer's margin. The summary also says base-metal smelters are under stress even while metal prices are high, because treatment charges have collapsed. That is a midstream fact. It is not a forecast of utility capital expenditure. No transmission-operator investment plan was opened.

Why it matters

Someone has to fund the asset before the load arrives. If the funder is a regulated utility, the customer's bill and the allowed return decide whether the spend earns its keep. If the funder is the connecting customer, the data-centre or factory owner is carrying an asset that is useless if the project slips. If the funder is the equipment maker's working capital, the risk is cancellation. These are three balance sheets. A theme fund that owns all three owns three answers to the question 'who captures the economics?'.

What to watch

Permitting time, transformer lead times and connection queues are the operational series. They should be cited from the network operator that publishes them. A rise in allowed investment is not a rise in completed circuits. Disbursement, as the minerals note says about public finance, is the test of a commitment.

Risks

Regulated returns can be revised down. Merchant price differences can disappear once the new line is built, which is the point of the line and the end of the scarcity rent. Equipment margins can be competed away once capacity catches the order book. Copper at 10 to 15 percent of the product can rise without becoming the main determinant of the utility's earnings.

What this is not

This note does not say the grid is underbuilt by a stated number of gigawatts. That claim needs a system operator's plan. It says only that the business models differ, and that an equipment cost share from the IEA is not a cash-flow forecast.