I don't have solar so I can't comment, although I would expect that yoursolar feed-in should remain unchanged.As far as "time of use" is concerned...My Landis+Gyr E355 appears to have "time of use" capability.However my electricity bill is based on two tariffs, one for AnytimeUse, and one for Controlled Load 1 (or Off-Peak, if you prefer).The meter switches over to Controlled Load 1 at pre-determined times(10:00pm-06:00am Sun-Thu; 10:00pm-02:00pm Fri-Sat).In my case "shoulder" doesn't apply.Time ...