Pasig, Metro Manila, NCR
Why two Metro Manila rooftops can produce different yields
A 6.16 kWp Meralco pilot in Pasig produced 6.87 MWh in its first year—lower specific yield than the documented Marikina example, illustrating site and period variability.
Documented project figures
System size: 6.16 kWp
System type: Grid-tied
Documented annual output: 6,870 kWh
Specific yield: 1,115 kWh/kWp/year
Evidence period: DOE-documented first year
What the source does not prove
What this should change in your planning
- Do not copy a nearby project's yield without checking roof and system conditions.
- A production range is safer than one precise promise.
- Ask installers to disclose weather, shade, loss, and availability assumptions.
How to compare this case with your own project
Start with capacity, system type, location, evidence period, and specific yield. This 6.16 kWp project documents 6,870 kWh of annual production, but that figure should not be copied directly into another property. Roof orientation, shade, weather, inverter limits, downtime, maintenance, and the share of electricity used during daylight can change both production and financial value. Compare the documented yield with the visible national planning range, then enter your own bill, roof, and backup requirements in the calculators.
Treat the project as evidence, not a promise of identical results.