[RE-wrenches] SMA Micro-grid

2019-04-22 Thread William Miller
Friends: I am working on an AC coupled SMA system in an off-grid setting. We have an SB4000-12 that was disconnected for a number of years and we reconnected it. The inverter is stuck in the waiting mode and will not generate power. The Sunny Islands and Sunny Boys are connected via an

Re: [RE-wrenches] Operating Voltages Outback RE High Capacity Battery

2019-04-22 Thread Dave Angelini Offgrid Solar
This case also sounds like the classic loss of battery capacity as Larry hinted. The genset is running too often. Time for a load test. --Dave On Mon, 22 Apr 2019 08:40:51 -0700, Starlight Solar Power Systems wrote: Hi Glenn, Simply because he specified the energy removed during the time

Re: [RE-wrenches] Operating Voltages Outback RE High Capacity Battery

2019-04-22 Thread Starlight Solar Power Systems
Hi Glenn, Simply because he specified the energy removed during the time period was about 6kWh. The 100Hr rate capacity for this cell is 1150Ah or about 55kWh of storage in the bank. 55kWh/100 = about 550W which are the claimed overnight loads. Using the 20Hr rate (960AH) would indicate