u/Swede577

9 year old 5.4 Kw system of 20 Canadian Solar CS-270 with a SE5000 with p-300 optimizers. Facing south on the CT shoreline with zero shade.

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My record production month was 1.01 mwh in May 2023 with a monthly efficiency of 5.845KWh/Kw. From my PVoutput.org KWh/kw efficiency numbers Jun 2026 is currently ranked 2nd in production efficiency after May 2023 with a 5.56KWh/Kw.

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Here are my top 5 production months.

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May 2023- 5.84KWh/Kw 1.01 mwh

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Jun 2026- 5.56KWh/Kw 679 kwh

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July 2022 5.38KWh/kw 927 kwh

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May 2020 5.34KWh/kw 922 kwh

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Jun 2024 5.28KWh/kw 882 kwh

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Here is the explanation for PVoutputs efficiency metric.

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On the solar tracking and monitoring platform PVOutput, kWh/kW (kilowatt-hours per kilowatt) is the standard metric for system performance. It measures the actual energy generated relative to your system's rated size, allowing you to compare panels and locations fairly.

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How the Metric Worksk: Wh represents the total electrical energy produced by your system.kW is the peak capacity (nameplate rating) of your solar panels.For example, if you have a 5 kW system and it generates 20 kWh of electricity on a sunny day, your daily performance is 4 kWh/kW (20 kWh ÷ 5 kW).

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Real-World Averages- Daily and annual yields vary significantly based on your latitude, panel tilt, roof orientation, and system losses. The typical daily yield across the United States ranges from 3.5 to 4.5 kWh/kW depending on peak sun hours.

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PVOutput Efficiency vs. Panel EfficiencySystem Efficiency (kWh/kW): This accounts for environmental losses (wiring, inverter efficiency, shading, and weather) to show how much useful electricity your physical system is producing in the real world.

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Panel Efficiency: This measures the laboratory performance of the panel itself (e.g., how much of the sunlight hitting the panel is converted into electricity). Modern residential panels usually operate at 21% to 23% efficiency.

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To track and compare your own system's metrics, visit the PVOutput System Live page to see how your local generation compares to similar installations globally.

I tapped into my 3/4 water line right after my water meter to get more pressure and boy did it raise the pressure. So far a Gilmour commercial hose and fireman nozzle are the only thing that can handle it. Every other hose and sprayer will pretty much self destruct. I currently hand water and man can this nozzle lay some water down but it would be nice to have a sprinkler setup.

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Anyone know of a sprinkler that can handle this kind of flow pressure?

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10 years of data on pvoutput.org the numbers dont lie. The old M215 enphase inverters are some of the most efficient and highest producing panels here in New England.

Doesn't even use a full kwh of electricty and you can easily recharge them with solar for free. Compared to $5+ gas the savings are astronomical..