To be fair, this is only just happening on a pure cost basis, if this is true it will be new for this year, previously it has only been in countries with high r

To be fair, this is only just happening on a pure cost basis, if this is true it will be new for this year, previously it has only been in countries with high retail rates and high solar output (Italy, Australia, Hawaii etc) where solar plus battery was on the verge of competitive, and even then more on a somewhat hypothetical basis assuming friendly planning laws, access to equipment like a Powerwall which may actually be difficult to get hold of straight away, efficient installation ecosystem, and so on. The things that we should be criticizing are more about: i) Failing to acknowledge the transition had to be done regardless of whether it was more expensive, because the result of climate change would be worse ii) Failing to accept that the cost of these technologies (electric batteries, electric cars plus charging infrastructure, solar, wind) was consistently falling in a way which implied they would become cheaper than current technologies over a period of decades. iii) Supporting new technologies over the existing technologies, and to what degree to push them over a tipping point quickly. Subsidies and mandates have been completely instrumental to getting to these point, there's no way solar in particular would have scaled up without them. If we are already at or around a tipping point, maybe we will be able to reduce them quickly rather than slowly, but I still think they will be important over the next 5-10 years for making this happen by 2040 rather than 2060.