We are in the heat wave of a few European countries, what differentiates us is that in
Spain we are more accustomed and prepared, especially on the Mediterranean coast:
air conditioning in many houses. By the way, these devices add
DC to the grid. In
August it would be more unpleasant, coinciding heat and
humidity. The one from now comes from the Sahara and it is a very dry air.
The most
noise present in the grid has been added by the multitude of
cheap SMPS that flood houses and many commercial refrigerators and others electrical machines that have been imported from Asia and that fail to comply with strict European regulations,
with the authorities looking the other way.
The ideal is to have the
substation close to home.
For antiquity, the US electrical grid, unfit for a modern country.
In
Tarragona we have other problem: two large concentrations of petrochemical companies, probably the largest of the entire Mediterranean.
https://en.wikipedia.org/wiki/Tarragona
And a very large amusement park. And two nuclear reactors in operation
(another two closed by seniority) less than 100 Km. Therefore, the voltage in the area is usually greater than 230 Vac. In my house, when it exceeds 238 Vac, the sound gets much worse. When it is close to 230 Vac my second audio system sounds amazingly good!
