JH Solar FAQ: Quick Answers on Solar, Bills and Installation

We offer two all-in-one solar systems, Version 1 and Version 2. In both, the hybrid inverter and the battery sit in one cabinet. A package also covers the solar panels, mounting rails and roof hardware, the electrical parts, and labor for installation and commissioning.

The unit prices are ₱120,000 for Version 1 and ₱150,000 for Version 2, unit only. Panels, mounting, wiring, labor and permits are quoted after a site assessment, because every roof, cable run and permit process is different. That written quote, not a web page, is what you agree to.

Have your latest electric bill (cover the account number), your city or town, a few photos of your roof, and a list of what you want running during a brownout. A rough estimate from our calculator also helps us talk about the right size faster.

Version 1 is rated for a 7 kW inverter, a 16 kWh LiFePO4 battery (51.2 V, 320 Ah) and one 4,480 W solar input for up to 6 panels. Version 2 is rated for an 11 kW inverter, a 15.36 kWh battery and two 5,500 W solar inputs. Version 2 has a 10-year hardware warranty; for both, exact warranty terms are written into your quote. Ask and we will list the component models and datasheets.

Our answer is a step up from a hand-carry power station. Version 1 and Version 2 are plug-and-play, floor-standing all-in-one units that can be moved, and Version 2 rolls on casters (about 160 kg). They are heavy, and the roof panels are installed by licensed electricians. For a stall, a boat or a camping trip, read our power station guide.

Payment options: Bank transfer, GCash, Maya, Cash. The amounts and the payment schedule are written into your quote before any work starts. Pay only through the channels named in that written quote, and never send money to an account you were given only in a chat message.

Yes, but less. Thick clouds and rain cut output, sometimes a lot, and the rainy season brings weeks of lower production. That is why sizing uses realistic peak sun hours, typically about 3.5 to 5 a day in the Philippines depending on place and season.

Panels make nothing at night. After sunset your loads run on the battery if you have one, then on the grid. A system without a battery simply hands the night over to your utility.

Only if the system has a battery and is wired to back up those circuits. A grid-tied inverter without a battery shuts down when the grid fails, to protect line workers, so it gives no backup power even on a sunny day.

Yes. Panels produce less as they get hotter, and on a hot afternoon the drop can be noticeable. This is normal and is built into good sizing. A gap under the panels for airflow helps, and the inverter or cabinet should sit in a shaded, ventilated spot.

kW is power: how much a device uses or an inverter can supply at one moment. kWh is energy: power over time. Example: an 800 W aircon running for 8 hours uses 800 × 8 ÷ 1,000 = 6.4 kWh. Your bill counts kWh.

Find the kWh on your bill and your rate per kWh. Estimate how many kWh the system can make and how much of that you will use directly. Multiply that energy by your rate. Treat the result as a rough estimate, since weather, usage and rates all change.

Payback depends on things nobody controls: monthly rate changes, your family’s usage, the weather and your utility’s rules. A fixed payback promise is a warning sign. We show the formula so you can redo the math with your own numbers.

It is what you pay for each kWh, built from several charges such as generation, transmission and distribution, plus taxes and other fees. It changes every month. To find your effective rate, divide your total bill by the kWh used.

Not always. Many homes size for their daytime use plus the loads they want during brownouts, then add more later if budget and roof space allow. The right size depends on your roof, budget, backup needs and whether you can export to the grid.

Some banks and lenders offer loans or installment plans for home improvements, including solar. Terms vary, so compare the total cost, not just the monthly amount. Ask us about payment terms when you request a quote.

Connection to your panel board or the grid must be done by a licensed electrical practitioner, a registered master electrician or professional electrical engineer, following the Philippine Electrical Code. This protects your home and is needed for permits and inspection.

Usually, yes. Renters need the owner’s written consent for roof and wiring work. Many subdivisions, homeowners associations and condominiums also have rules on roof changes, so ask them before you sign a quote.

We check your roof type and condition, shade, the best spot for the cabinet, the cable route to your panel board, and your bill and backup needs. After that we prepare a written quote with the equipment and work included.

No. Net metering is only for sending extra power to the grid for bill credits. Systems that do not export follow different rules, and permits still apply. Check the current requirements with your utility and LGU, as the rules have changed recently.

Do not touch connectors, cable ends or terminals. Panels produce DC voltage whenever light hits them, even with the system switched off. Never walk on panels, and leave anything beyond a visual check or gentle cleaning to your installer.

Somewhere shaded, dry and ventilated, on a solid wall or floor, away from direct sun, cooking heat, flooding and children. Leave space around it for airflow and service, and follow the clearances in the manual.

Take a photo of the screen or error message and note the time. Check the manual for the code, but do not open the cabinet. If the alarm stays or repeats, contact your installer and share the photo.