The Ontario Energy Board (OEB) has finally released Ontario’s System-Wide Electricity Supply Mix: 2015 Data. Previous years’ versions of this reporting have been almost unique in providing an indication of the costs of embedded generation.
Although the OEB supply mix data shows only percentages by supply types, assuming all nuclear is grid-connected (Tx, or direct) generation, it’s reasonable to use the annual nuclear generation reported by the IESO (including curtailed nuclear) to calculate estimated generation from each source – and having done that to estimate the cost of the generation not reported by the IESO using estimated unit costs from Table 2 of the most recent OEB Regulated Price Plan supply cost documentation.
There’s $1.35 billion in hidden solar costs here!
Why is the IESO contracting more solar when the can’t provide any accounting on what they’ve already contracted?