Transparent preliminary screen
Commercial Solar Feasibility Screener
Test whether roof and consumption information support a fuller assessment. The output deliberately avoids false precision.
Enough for a useful first screen
Indicative capacity ceiling: about 193 kWp
This is the lower of a roof-density screen and a consumption-led screen, rounded to the nearest whole kWp. It is not a recommended system size.
- Roof-density ceiling
- about 250 kWp
- Consumption-led ceiling
- about 193 kWp
- Controlling constraint
- Daytime consumption
- Region (not used in calculation)
- Mainland Spain
- Operating days (not used in calculation)
- 6 days per week
- Battery interest (not used in calculation)
- Unsure
What must be checked next
- Half-hourly or hourly consumption data and tariff periods
- Roof structure, usable zones, shading, fire access and equipment loads
- Electrical single-line diagram, contracted power and connection point
- Export route, applicable permissions and autonomous-community procedure
Assumptions: 6 m² per kWp as a coarse roof-density allowance, daytime consumption equals annual consumption multiplied by the stated daytime share, and 1,450 kWh/kWp is used as a neutral annual-yield screen. Region, operating days and battery interest are recorded for context but do not alter this calculation. Real yield varies materially by location, orientation, shading, equipment and losses. This preliminary screen is not a quotation, system design, savings guarantee or recommended system size.
Take the screen to assessment ↗Understand the output
Capacity is constrained by both place and demand.
A roof may physically accommodate more modules than the business can use economically. Conversely, a high daytime load does not create usable roof area or a viable connection.
Read how system sizing follows consumption and what a feasibility study must check.