For too long, solar PV design tools have been focused on getting year-1 generation right. 

But a plant operates for 20–30 years. If you’re investing millions in CAPEX, how do you credibly forecast lifetime cash flows?

Conventionally, performance engineers and financial modelers take year-1 generation, apply straight-line degradation, and haircut for availability. 

And that's fine for a back-of-the-envelope estimate… but reality is far more complex.

Over a project’s life:

🌤 Weather varies, some years are sunnier, others cloudier.

📉 PV modules degrade unevenly, creating growing mismatch losses

🔌 Inverters clip excess generation.

🛠 Equipment failures cause downtime.

🏭 Grid curtailment eats into revenue.

There’s no simple formula to combine the effect of these factors because they’re uncertain, and often interrelated. 

PowerUQ simulates millions of scenarios to quantify net impact of both - weather variability and aforementioned model uncertainties - over the entire project lifecycle. 

With PowerUQ, solar projects can be now evaluated with credible generation scenarios, for both - typical case and the downside case.