Empirical data from Jemmotts Lane, Barbados -- 2014.12.01

These graphs were generated from a historical database of samples from a UPS at a client's location.

Of particular note is the dips in supplied voltage (below FTC approved and allowed levels) during the mid-day, primarily week-days only.

Most likely explination is this is caused by heavily loaded air conditioning systems drawing higher amounts of power.

Somewhat ironicially, this is exactly when grid-tied photovoltics would be providing the most power into the grid...

Day Graph

Week Graph

Month Graph