Technical Guide · Updated April 2026
What is a Hybrid Inverter — and Do You Need One?
The inverter is the brain of your solar PV system. Choosing between a grid-tied and a hybrid inverter is the most consequential technical decision you make. Here is what you need to know.
The three types of solar inverter
Grid-Tied Inverter
₱15,000 – ₱50,000
Converts DC from solar panels to AC for use in your home. Any excess is exported to the Meralco grid. Automatically shuts down when the grid fails (anti-islanding protection).
Pros
- Lowest cost
- Simplest installation
- Lowest standby power draw (~1–5 W at night)
- Best payback period
Best for
Homes with stable grid and ₱3,000–₱8,000/month bills
Hybrid Inverter
₱35,000 – ₱120,000
Does everything a grid-tied inverter does, but also manages a battery bank. Charges batteries from solar first, exports surplus to the grid, and automatically switches to battery power during outages.
Pros
- Backup power during outages
- Battery storage for evening use
- Can operate off-grid temporarily
- Programmable charge/discharge schedules
Best for
Homes with brownouts or evening-heavy electricity use
Off-Grid Inverter/Charger
₱60,000 – ₱200,000
Designed to operate completely independently from the grid. Manages large battery banks and often includes a generator input for cloudy periods. Not connected to Meralco at all.
Pros
- Complete energy independence
- Works where grid is unavailable
- No Meralco connection needed
Best for
Remote properties without grid access
How a hybrid inverter manages power
Daytime (sunny)
Solar panels generate DC power. The hybrid inverter converts it to AC for immediate use. Surplus charges the battery bank. Once batteries are full, remaining surplus exports to the grid via net metering.
Daytime (cloudy)
Solar generation is reduced. The inverter draws the deficit from batteries (if charged) or supplements from the Meralco grid. You continue to use power normally.
Evening / night
Solar generation stops. The inverter draws power from the battery bank for your home. As the battery approaches its minimum state of charge — or if load spikes above the battery's maximum discharge rate — the inverter smoothly blends in grid power, ramping up grid draw as battery output tapers down. There is no hard cutover between sources.
Grid outage
Within milliseconds, the hybrid inverter isolates from the grid (anti-islanding) and switches the critical load (EPS) circuits to battery power. Note: only circuits physically wired to the inverter's EPS/critical load port are backed up — not the entire house. If the sun is shining, solar continues to charge batteries during the outage.
Do you need a hybrid inverter?
Do you experience brownouts regularly (more than once a month)?
Do you have critical loads that cannot lose power (medical, home office, security)?
Is a significant portion of your electricity use in the evening (aircon, TV, appliances after 6PM)?
Is your primary goal to maximize financial return and shortest payback?
Is your area grid stable with rare outages?
Hybrid inverters available in the Philippines
SRNE
China · 3–12 kW
Common in the Philippines. Good value and wide service network. Caution: many popular SRNE models are off-grid hybrids rather than true grid-tied hybrids — verify that the specific model carries ERC grid-tie certification before specifying it for a net metering installation.
Growatt SPH
China · 3–10 kW
Popular hybrid line with good monitoring app. Slightly more expensive than SRNE. Strong Philippines distribution.
Deye
China · 3–12 kW
Rising in popularity. Competitive pricing and good battery compatibility including BYD and Dyness.
Huawei SUN2000
China · 3–10 kW
Premium build quality and excellent monitoring. Important: Huawei residential hybrids use a high-voltage (HV) architecture and are exclusively compatible with Huawei's proprietary LUNA2000 battery — not standard open-protocol 48V LFP batteries. Factor in LUNA2000 pricing when comparing total system cost.
Victron Energy
Netherlands · 3–15 kW
Industry standard for off-grid and complex systems. Victron MultiPlus/Quattro units are modular bi-directional inverter/chargers — not all-in-one hybrids. Solar PV input requires purchasing separate MPPT charge controllers (DC coupling) or an external grid-tied inverter (AC coupling). Most flexible architecture available, used in critical and off-grid applications.
Sources & References
- [1]Philippine Electrical Code 2017, Article 6.90 — Solar Photovoltaic (PV) Systems — Institute of Integrated Electrical Engineers of the Philippines (IIEE)
- [2]IEC 62109-1:2010 and IEC 62109-2:2011 — Safety of Power Converters for Use in Photovoltaic Power Systems — International Electrotechnical Commission
- [3]Electricity Storage and Renewables: Costs and Markets to 2030 — International Renewable Energy Agency (IRENA)
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