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Node-RED solar power forecast plus

Node-RED solar power forecast plus

Using Node-RED's node-red-contrib-solar-power-forecast-plus contribution to plot (light blue line) the estimated max PV generation in ideal conditions for my location/panel orientation/time of year; seems pretty accurate so far. Useful to know what theoretical maximum I have.

DC side surge protection device

DC side surge protection device

Installed a DC side surge protection device to my @froniussolar GEN24 #solar inverter. It comes as retrofit option, installs in under 20 min. A lightning strike nearby can induce damaging voltages in the wires from the rooftop panels 30m away, this SPD takes care of such cases

Fronius WattPilot EV charger

Fronius WattPilot EV charger

The @froniussolar WattPilot EV charger just arrived. This is the 22kW model, we have single phase installation, so max 7.4KW would be available. Can be configured to only charge using PV surplus, and supposedly works with zero feed-in. I don’t own an EV yet,will rent one to test.

A week on solar energy

A week on solar energy

A week on #solar energy, 70% of our consumption is solar-generated. Battery (BYD HVS 7.7kW) is ordered but 6-8 months to deliver, which I am told is “the new normal” Export of energy has been set to 0%, the inverter regulates production to match consumption. It is underutilized for the moment, but things will change…

18 solar panels and a 6kW inverter

Decided to go for 18 #solar panels and a 6kW inverter instead of 14 panels and a 5kW inverted because the 14 panels I originally planned produce over the recommended MPPT voltage for the inverter,and don’t split well into 2 strings. Learning as I go, should’ve consulted better

Roof rafters under asphalt shingles

Roof rafters under asphalt shingles

Tip for non-invasive detection of roof rafters under asphalt shingles for #solar panels installation:these are clearly visible on an early morning with freezing temperatures. Marked mine with paint and took a ton of pictures at 6 am today,before the sun rises and frost marking go

Fronius Smart Meter

Fronius Smart Meter

Received the Fronius Smart Meter, it limits the power export of my yet-to-build solar roof installation. Exporting power here is a bureaucratic hell, I will not subject myself to it by zeroing on the export. The inverter itself, a @froniussolar Primo GEN24 5kW due in 3 months 🙁

South-facing slope of the house roof

South-facing slope of the house roof

Sketched the south-facing slope of the house roof to identify where/how to fit the 14 Q CELL 355W #solarpanels I bought earlier (sized 1.68m x 1m), looks like I can fit 4 more panels in the future and split them into two strings. A good site, if you want to do that same thing in…