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All case studies

Tarlac City, Tarlac, Central Luzon

What a monitored 2.72 kWp Tarlac rooftop produced

A published monitoring study recorded 3,699 kWh of annual generation from a 2.72 kWp grid-connected rooftop system in Tarlac City.

Representative residential rooftop solar array used for the Tarlac case study
Representative residential solar installation. This photograph is not the documented Tarlac property.

Documented project figures

System size: 2.72 kWp

System type: Grid-tied

Documented annual output: 3,699 kWh

Specific yield: 1,360 kWh/kWp/year

Performance ratio: 77.1%

Evidence period: 2020–2023 monitoring study

Evidence strength: HighPeer-reviewed monitored study
National-range comparison: 1,360 kWh/kWp/year is within the national planning range. Reference range: 1,1001,500.

What the source does not prove

The source reports monitored system output but does not provide the household's full electricity-bill history, roof survey, maintenance log, or installer contract.
Documented output3,699 kWh

What this should change in your planning

  • A local monitored yield can be more useful than a national default.
  • Performance ratio shows that nameplate capacity is not the same as delivered energy.
  • Use this as a planning reference only; roof shade, orientation, equipment, and weather still matter.

How to compare this case with your own project

Start with capacity, system type, location, evidence period, and specific yield. This 2.72 kWp project documents 3,699 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.

Research sources