From Solar off-grid to Solar (main)+ grid – From generator back-up to grid as back-up (ME-ARC)
My set-up up to last week
3Kw of solar panels / Combiner box / Solar Charge controller EP solar 60A / 48v Battery bank (Crown 430 AH) / Magnum MS4448PAE inverter-charger / AGS module / Generator: onan 6500w propane.
Until recently all was pretty well working. Here in Quebec , Canada, November and December months are the worst of the year. You can’t count only on Solar because the days aren’t long enough and cloudy most of the time. Something to do with the Great Lakes until they freeze over).
So around this time of year the generator kicks in more frequently and go through a complete charge cycle when required. From Bulk to float with runtime of 3,5hr.
Now here is my issue….Earlier this year utility became available at our door step and we decided to take advantage of it. Since we had already invested so much money in original set-up, only 4 years old, we wanted to continue to operate as usual but simply replace the Generator , as back-up , by Utility as back up. We are not interactive with the grid. All existing equipment is compatible with this to the exception of the ME-RC remote. Following info received from Magnum we bought the ME-ARC remote which can handle setting-up for the grid input.
Done everything as indicated. But the damn grid comes in for only sometimes 0.3hrs or 0.6hrs. Definitely not going in float. After some emails exchange with Magnum the rep latest comment was it is normal as the grid is used only to bring the battery to a certain voltage and then let the main solar system take care of the rest. Eeeeehhh, what? (not to mention some other error message but for later discussion)
Did I mentioned the solar can’t keep up, most of the time, at this time of year anyway? And why the ME-ARC manual goes extensively about choosing the multistage charging and setting up the absorb time to 1.5-2hrs, etc…Why isn’t it working as the AGS/generator combo?
Did anybody experienced something alike? Can’t I get my charger do a full charge cycle when needed?