FieldengElectrical & Power
Solar PV Energy
Estimate daily energy production from a PV array.
Electrical & PowerEngineering Fundamentals
Estimate daily energy production from a PV array.
App id: ELEC-11. Reference version 1.0.
How to fill it
Fill the inputs. The tool shows the outputs.
On the tool screen, Calc is the working sheet. Presets stores values you reuse. Reference is the formula, assumptions, and provenance below.
Formula
E = Parray × peak sun hours × ηInputs
| Name | Unit |
|---|---|
| Array rated power (optional) | W |
| Number of panels (optional) | 1 |
| Panel rated power (optional) | W |
| Peak sun hours | h |
| System efficiency | % |
| Daily load energy (optional) | Wh |
Outputs
| Name | Unit |
|---|---|
| Estimated daily energy (hero result) | Wh |
Diagnose
Observations are context. They do not pass or fail a structure. See Diagnose.
| When | Observation | Severity |
|---|---|---|
(Estimated daily energy / Daily load energy) ≥ 1.15 | Estimated production exceeds demand | info |
(Estimated daily energy / Daily load energy) ≥ 0.95 | Narrow energy margin | caution |
(Estimated daily energy / Daily load energy) < 0.95 | Estimated energy deficit | warning |
Assumptions
- Peak sun hours already include the site’s typical irradiance. Efficiency is a fraction.
Provenance
- Planning estimate only. Temperature, shading, orientation, and inverter curves are not modeled.