PBT up 38.8% as EBITDAF margin reached 27.8%, well above historical norm

The HY22 comparable still included the Australian subsidiary (disposed January 2022) inside continuing operations and carried a NZ$12.0m discontinued-operation loss, so HY23 is the first clean NZ-only half.

Profitability is meaningfully above the company's historical baseline. EBITDA margin of 27.8% sits above its supplied historical range (3-period mean 19.2%) and PBT margin of 18.2% is well above its mean of 6.9%. Management attributes part of the lift to a disclosed NZ$51m generation/sales benefit alongside a 5% rise in sales volumes.

Net debt/EBITDA fell to 2.20x from 4.20x — below the historical range (mean 3.99x) — as gross borrowings dropped NZ$681.0m to NZ$1.1b on Australian sale proceeds. The interim dividend was lifted 2.6% to 6.00cps.

Revenue mechanically fell because Australia is no longer in the top line, but EBITDAF still grew 7.9% on the smaller NZ-only base. Margins are above the supplied historical range across EBITDA, PBT and NPAT lines simultaneously — that combination is unusual and suggests pricing, generation conditions and hedge book all contributed. The durability question matters because part of the lift is tied to disclosed generation/sales benefits that depend on hydrology.

Leverage has been reset, not just trimmed. Net debt/EBITDA at 2.20x is 1.79x below the historical mean of 3.99x. That gives the balance sheet meaningful headroom relative to how this business has historically operated, which matters for funding the renewables build pipeline and for dividend flexibility.

Payout normalised on stronger earnings. Payout vs NPAT dropped to 76.9% from 112.5% — the prior period was paying out more than it earned. The dividend is now covered by reported earnings, but the modest 2.6% per-share lift is conservative relative to the scale of the PBT step-up.

The supplied seasonal shape shows HY22 represented 55.6% of FY22 EBITDAF but only 20% of FY22 NPAT, because FY22 NPAT was inflated by the Australian disposal gain in the second half. That distortion means the HY-to-FY NPAT shape from FY22 should not be used to extrapolate full-year FY23.

On revenue, HY22 was 45.2% of FY22's continuing-operations top line; an equivalent shape would annualise HY23 to around NZ$3.4bn, but second-half hydrology and pricing realisations drive whether margins hold above the 27.8% achieved here. The release does not give a basis to extrapolate the margin uplift through the second half.

The effective tax rate of 28.0% is essentially unchanged from 27.9% prior, so NPAT growth of 51.1% is not flattered by tax — PBT growth of 38.8% is the cleaner operating read. Working-capital movement of negative NZ$30.0m is within the supplied historical range and debtor days at 32.3 are inside the historical band, so cash didn't get a one-off working-capital tailwind.

Cash conversion is the softer note. OCF/EBITDA at 62.4% is within the historical range but is not a record; FCF/NPAT of 64.2% means roughly a third of reported earnings did not show up as pre-lease free cash this half. Capex intensity at 8.9% of revenue is similar to the prior 8.4%. The disclosed NZ$51m generation/sales benefit is the single largest swing factor flagged by management and is the most hydrology-sensitive piece of the result, so the durability of the margin step-up rests partly on conditions outside management control.

This briefing cannot assess hydrology conditions, hedge book positioning, or the contracted/regulated cash-flow mix that drive whether the above-baseline margins persist beyond this half.