Numbers for this period
PR compares what your panels made with what panels their size would make in the sun they got, if nothing were lost. Heat, dust, wiring and the inverter always take some, so real systems sit below 1.00. Healthy is 0.75 or more.
Two low months in a row
Questions, not a verdict: has anything shaded the panels, are they dirty, and what does the inverter's fault log say? A cloudy stretch can do this too, so check the weather first.
We wait for a second low month before raising a flag, because satellite sun data can be off by 5 to 10% for a single month.
Weather or system?
The weather check did not get through, so the PR above is still against a typical year's sun. Check your connection and use "Try again" below your bills.
Not checked yet. Tap "Check the weather" (below your bills) to compare. The PR above is against a typical year's sun, so a cloudy month can read low even when the system is fine.
The weather index is the sun in this period divided by the sun for the same dates in a typical year (the average of 2020 to 2025). 1.00 is typical. Below 1.00 is cloudier than usual.
- Weather index
- PR adjusted for that weather
- Below a typical period by
- Left for the system to explain
You produced at or above a typical period at PR 0.75, so there is no shortfall to split.
How much solar you used yourself
- Used in the house
- Share of your solar
- Whole-house use
What solar saved you
- Your buying rate
- Saved this bill
- Moving 1 kWh from night to noon is worth
Battery
Round-trip efficiency is how much of the energy you put into the battery comes back out. Some is always lost as heat, so it stays below 100% over a long run.
- Round-trip efficiency (out ÷ in)
- Whole-house use, worked out
- Battery earned this bill
Near or above 100% in one bill usually means the battery ended the period less full than it started. Look at a few bills together.
Decode this bill
- Binili mo sa grid. Bumili ka ng . Ang mga singil na tumataas kasabay ng kWh ay . Average iyon na .
- Na-export mo. Nag-export ka ng . Ang credit ay nasa presyo ng generation charge lang ( bawat kWh), hindi sa buong presyo ng binibili mo. Kaya ang export credit mo ay . Mas malaki ang ipon kapag ginamit mo mismo sa bahay ang solar () kaysa i-export ().
- Pagkatapos ng credit. Na-offset ng credit ang ng variable charges.
- Pagkatapos ng credit. Mas malaki ang credit () kaysa sa variable charges (), kaya ₱0.00 ang natira rito. Ang sobrang ay hindi kinukwenta ng SCND; tingnan ang paalala sa ibaba.
- Bakit hindi zero ang bill. Ang natitirang ay fixed charges (tulad ng metering at supply) at iba pang singil na hindi sakop ng variable charges. Hindi ito bumababa kahit gaano karami ang i-export mo. Pambawas lang sa variable charges ang credit, kaya hindi kailanman zero ang bill.
- Hindi tugma ang total. Ang total mo ay mas mababa ng kaysa sa na natira pagkatapos ng credit. Hindi ito maipapaliwanag ng fixed charges, kaya balikan ang mga numero; tingnan ang paalala sa ibaba.
- Walang natira para sa fixed charges. Sa mga numerong inilagay mo, katumbas mismo ng total ang natira pagkatapos ng credit. Kadalasan may fixed charges ang bill (tulad ng metering at supply), kaya baka kasama na sila sa variable charges na inilagay mo. Kung ganoon, mas mataas nang kaunti ang lumalabas na presyo bawat kWh kaysa sa totoo.
- Total. ang binayaran mo.