Most reacted posts

People went to jail for this ground mount. Welded braces on the panel mount arms so at least the front panels could be mounted lower for less shading of the rear panels. A little sketchy as far as supporting the panel frames widely enough, but send it. The miscellaneous panels on the...

it's a DC Solar trailer rack.... The rest of the trailer is in the garage, and the actual trailer was sold to some guy who took it to Alaska. This lists the sentences given out to DC Solar folks...

Oh boy, tiny first success: RPi and yasdi sees the Sunny Island!! New device found: 'SI6048UM SN:1260037647' pi@hassbian:~ $ sudo yasdishell yasdi.conf ************************************************************ YASDI Mini Shell (build for Linux) (This is an test program...

Hah! I figured out how to use an exec node in node-red, to run a script if the BMS watchdog timer trips. The jbdtool processes are still started when the RPi starts as before, but now there's another script which node-red kicks off if there is no BMS data coming through. The script first...

I use a cheap scr dimmer circuit to dump extra solar into water heater. Wifi relay board adds different combos of resistors, instead of the original manual potentiometer, controlled from raspberry pi listening to main inverters as to available extra power. The original tank thermostat works...

Today I ran the new heatpump most of the day in A/C mode, and checked it for a minute in heating mode. All good so far. It's a cold climate inverter 2-3ton MrCool Universal (Gree Flexx / Midea Evox rebadge). It pulled up to 3400watts (maybe more if I run the airhandler blower faster) and as...

Until....

Ha, There was one a week or two ago asking about $150 and I missed that one. The webbox does communicate with the SI at 19200. Probably obvious, but the raspberry pi rs485 interface must be disabled (unplugged the USB end, the rs485 is still connected and terminated), otherwise there would be...

That's my philosophy. I'm using both. The CAN has a few signals at a fast rate that I could figure out (freq is good for turning on more loads if starting to curtail solar), but not other required signals (battery current for example). That's in FLA mode, in Li battery mode there is probably...

They multiplied, and they work too.

Parameters available to set: Command ('?' for help): ? Commands: ? : This help... e : Start device detection (sync) b : Start device detection (async) z : Stop (async) device detection d : Show device list a : Show spot channel values p : Show parameter channel values t : Show test...

Here's what mine looks like. The SI has 7 and 6 wide sockets, and the piggyback uses 7 and 5. There are different pb cards, but I think this style fits the SI and similar vintage sunny boy pv inverters.

I got the RPI to change access level and allow setting parameters, using the yasdishell script. It's like you said Hedges, but with a little telephone game translation issue. There's a doc here which explains it. (it has another minor issue, lower case 'inst', not 'Inst')...

Agree, although it's very conveniently understood how it works. Michigan lost net metering around 2019, and now use inflow/ outflow metering called distributed generation. Inflow you pay whatever the rate you're on. Outflow get credit (currently) for the power supply or energy cost for your...

Anyone using rs485 with the Sunny Island inverters, you may be interested to learn that the rs485 works at higher baud rates, up to 19200 at least. Discussion here, I'm using yasdi2mqtt to get data from the SMA SI6048US inverters: https://github.com/pkwagner/yasdi2mqtt/discussions/30

Yes, the front and rear are too close. I lowered the front panels but the angle as shown is the steepest that doesn't shade in winter. I haven't bothered tilting them this spring/summer. I didn't move the back row up yet because I'm leery of the wind from behind and hitting the fence behind...

Yes that's the idea, and the DMM would terminate it's end of the rs485 bus. Good luck and please report how it works out with the DataManagerM and the SI6048US inverters.

I recently finished a DIY transfer switch box to move my grid tied array between the grid and the island/off-grid panels. It is a 4.7kw 'grid-tied' system with microinverters which goes through a generation meter. The motivation is to use the grid-tie system energy in the house directly where...

Hah, well at least pulling data to mqtt works and is easy! This project works: https://github.com/pkwagner/yasdi2mqtt A dump of mqtt messages now shows up the data from the Sunny Islands. That gets me what I want for now so I can do some changes to my system. Maybe I'll come back to...

That can spec is not for the SI6048. There is one floating around that lists can messages for 6048 in lithium battery mode, but I have not found one for fla. I have can and rs485 hooked up to my 6048 with FLA batteries. Can has a couple obvious signals I found for target voltage, AC freq and...

I periodically look at my consumption and see what I could go after easily. I just finished (well, almost finished...) the ducting for a heat recovery ventilator, which included exhausting from a basement area that previous used a small fan to keep humidity and radon lower. That small fan...

Wow that's 150A at 240v. Does it use several circuits? Hah, it does, 4x 40A, that'd be #8 copper, please remember to budget for that.

Right, may not work for everything. I have only the SI 6048US master and an rs485-usb adapter to RPi on the rs485 bus, and it works at 19200. I haven't tried faster than 4 seconds update rate with yasdi2mqtt (it works at 4 sec and that's fast enough for what I want), but before I was using...

Just found this thread, still reading the whole thing. For 2-3 years now, I've been using old m190/m210 microinverters to discharge 10s and 14s Leaf cell battery banks now totaling about 30kwh, runs everything for a night or maybe two, depending on cloudy days. They are AC coupled into SMA...

I removed a nat gas boiler last winter, replaced with electric water heater as buffer tank, resistance heating only. Main heat when we're home is woodstove, so we only were spending $3-400 annually for gas. But last winter we replaced that heating load with grid banked electric which was all...

There is a github project, https://github.com/magico13/PyEmVue that piggybacks on the Emporia cloud to get data directly for Emporia devices, including the Vue power monitor, and their EVSE. I installed the Emporia EVSE recently and set it up with my other RPi controls to automatically...

I guess a tankless electric is about the cheapest to install. A coozie should help a regular water heater. Mineral wool batt insulation and an old boat bimini cover. One day I'll set up temperature logging to measure the standby loss. In the mean time, I should just write down the tank temp...

I have a system based on a pair of SI 6048 (set of DC solar parts), with both AC (enphase micros) & DC (midnite 250) coupled arrays, supplying the whole house primarily off-grid now (new off-grid panels, SI AC1). I have an older grid-tied array (enphase micros), still connected to the house...

Wow, that was a big drop in the SOC estimation, from about 75 down to 20. Dropped into the battery protection mode and connected to the grid even though it was still on-peak hours. I just happened to notice looking at the monitoring. If the grid had not been available, it would have shut off...

I haven't really looked into what it is, brand new Frigidaire induction range. A 10yr old Sony . It could be our imagination also. Your point is valid, I would not use a single double pole double throw relay to switch the microinverters. Maybe it could be fast enough to reconnect, likely out...