Re: The Physics Behind the Spanish Blackout

On 6/13/2025 5:05 PM, KevinJ93 wrote:

I think they can just pull the meter to disconnect the array.  But,
if you need to replace the roof material, you also have to remove the
panels (likely not something that they will let a DIYer do?) and,
later, reinstall them.

 There will always be a separate circuit breaker in the electrical panel for the solar. If there isn't a solar isolator as I'm required to do here then just flip the circuit breaker.
 As far as I know removing the panels can be done by anybody here - reinstalling may require an electrician or other certified person (they have 2 or 3 grades here that are approved).

Unless the homeowner is a DIYer, "anyone" still has to be paid AND
entrusted with manhandling the panels, getting them disconnected,
off the roof, into storage, etc.  I.e., there is a cost to
removing them before you even begin to experience the cost of losing
that capacity (and paying more for your electricity in their absence)
Plus, assuming the responsibility for scheduling these activities
so you're not sitting without solar and waiting for the roofers
to show up a day or week later.  Likewise putting it all back
together.
ANYTHING on the roof, here, has a significant downside.  Roofs
take a beating from the constant sunshine and dry conditions.
[I've maintained our "original" roof for 30 years.  I've watched
every neighbor replace theirs -- some TWICE -- in that period!  I sure
wouldn't be keen on putting additional stuff (PV arrays, HVAC plants)
on the roof to complicate that maintenance.]