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Here is my SmartSolar 250/100 at midday on a beautiful day, PV volts and amps. We know every 10 minutes it scans for a better power point. Except when it doesn’t. I can’t tell when it wants to and when it doesn’t. In any case, why in the world would it take voltage all the way down to 80v...

Below is a chart of the Victron ESS (Grid Code Other) responding to a 6 kW water heater turnoff event. The general consensus is that Victron has a hardcoded 400W/second limitation. With split-phase Quattros, this should be 800W/second. This chart shows a faster response time than that (about...

Well, best solar day of the year so far. Unfortunately, I found out that I was too conservative designing the main PV breaker at 40A (4s3p configuration). It tripped today. Guess I’ll bump it to 50A. Cable size is adequate, no issue there. Good news: The inexpensive amazon Langir DC breaker...

There is nothing quite as satisfying as maxing out on solar on a bright sunny day!

I've got a Victron 250/100 connected to a 4s3p configuration of ground mount panels. Getting nearly 100A battery charging from the MPPT right now, which is great (5300-5550 W). I've designed the system for 40A. Two Langir 40A DC Non-Polarized breakers/disconnects. Polarized 50A GFPD from...

Background I’ve decided to go back to open loop control on my 3 EG4-LL v1 devices, after 6 months of doing it closed loop with a Victron Cerbo GX via CAN. The closed loop control worked reasonably well, but now my batteries are out of balance, and I have too many unanswered questions about the...

I’ve got a 3/4 HP 4” 2-wire 230V Submersible Well Pump (4F10S07305) Rated: 8A Max, 40.7A Locked Rotor Current Real World Measurements: 8.3A running, 21A peak inrush current It is 17 years old and still working very well. I’m considering putting a soft-start on it to ease the startup current on...

Newby Warning I’ve temporarily got a single string of 4 Qcells Q.Peak Duo XL-G10-480BF running into a Victron Smart Solar 250/70, and i’m seeing peak wattages of 2386W! That is almost 600W per panel for panels rated 480W. Yes, they are bifacial and the ground is bare, they are 4’ above the...