RE: Half Year Report Out9 Dec 2022 07:15
Book value is a flawed metric imo, distorted by accounting policies especially around PPE. The original cost of the coal plant was capitalised and there's no guarantee that a sale would be at current book value (not unusual for these to trade below book value). Having said auditors should test it for impairment (albeit they rely on Management to provide estimates of future cash flows etc so becomes circular).
A more reliable estimate of value is looking at recent transactions of coal power stations in India and computing an Enterprise Value / Installed MW Capacity metric. Valuations will be driven by factors such as Commissioning Date, PLF, Tariff Regime, potential for enhancement capacity, but ultimately one can get a decent sense of value.
There have been various transactions recently in this space and all at EV/MW multiples of £0.4m-£0.6m. Its a narrow range and gives confidence on its accuracy. OPG has installed capacity of 414MW so easy maths to show that a hypothetical sale would yield multiples of the current market capitalisation.