Solis Inverter Review (Philippines): The Volume Leader Playing Value
Published specifications for the S6-EH1P5K-L-PLUS (S6 platform). A brand ships several series, so these figures describe this model and not every product the manufacturer sells.
- Rated power
- 5 kW single phaseThe S6 residential platform spans roughly 3.8–11.4 kW single phase.
- Type
- Hybrid, low-voltage battery
- Maximum efficiency
- 96.2%The lowest of the three inverters compared here.
- MPP trackers
- 232 A per tracker, 500 V max DC input.
- Warranty
- 5 yearsSome markets and variants are quoted at 10. Confirm the term for the unit you are sold.
- Ingress protection
- IP65
Source: Solis S6-EH1P(3-8)K-L-PLUS datasheet. Checked 2026-09-28. Manufacturers revise specifications between series without notice — confirm the figures for the exact model you are quoted before you pay.
What it does well
- A confirmed authorised Philippine distributor carrying a wide range, so units come with local warranty backing rather than as a grey-market import.
- 32 A per MPP tracker, enough headroom for the high-current modules now standard.
- IP65 rated, so it can go on an outdoor wall rather than eating space in a utility room, which matters on a small Philippine lot.
Where it falls short
- Maximum efficiency of 96.2%, the lowest of the three compared here — about 1.5 points behind Sungrow, which compounds over the life of the system.
- The standard warranty is quoted at 5 years in some places and 10 in others, and we could not establish which applies to units sold here.
- Buying through a smaller reseller rather than the named distributor puts the warranty path back in doubt.
Compare against the other 29 hybrid inverters we have reviewed
How the S6-EH1P5K-L-PLUS (S6 platform) compares with the other hybrid inverters we have reviewed. Listed in no particular order — this puts published figures side by side, it does not pick a winner. Scroll the table sideways to see every column.
| Model | Rated power | Maximum efficiency | MPP trackers | Warranty |
|---|---|---|---|---|
| S6-EH1P5K-L-PLUS (S6 platform) this review | 5 kW single phase | 96.2% | 2 | 5 years |
| SH-RS residential hybrid series | 3.0–6.0 kW single phase | 97.7% (SH5.0RS) | 2 | 10 years parts and labour |
| ES G2 (GW5000-ES-20) | 5 kW single phase | — | 2 | 5 years |
| SUN-K-SG04LP1 / LP3 hybrid series | 3–5 kW typical residential | Around 97.6% | — | 5 years, 10 on registration |
| SPH residential hybrid series | 3–5 kW typical residential | 97–98% | — | 5 years, 10 on registration |
| SUN2000-L1 single-phase hybrid | 2–6 kW single phase | 98.2–98.6% | — | 10 years |
| Residential inverter and power optimiser system | — | — | — | — |
| ECCO hybrid range | 3.6-7 kW single phase | — | 2 | 5 years, 10 with a Sunsynk battery |
| MultiPlus and Quattro inverter/chargers | MultiPlus 800 VA-5 kVA, Quattro 3-10 kVA | — | — | 5 years |
| LXP and GEN hybrid series | 3-14 kW | 97.5% (12 kW unit) | — | 5 or 10 years |
| Sunny Boy and Sunny Tripower | Roughly 1.5-6 kW (Sunny Boy core) | Around 97.5% peak (Sunny Boy) | — | 5 years, free to 10, paid to 15 |
| Primo, Symo and Symo GEN24 Plus | Roughly 1.5-24 kW | — | — | Around 30 months standard |
| X1-Hybrid and X3-Hybrid G4 | 5-7.5 kW single phase | — | 2 | 5 years, free to 10 |
| Grid-tied and hybrid range | Grid-tied 1-170 kW, hybrid 3-80 kW | — | — | — |
| Off-grid and hybrid inverters and MPPT charge controllers | 5-10 kW | — | — | — |
| Hybrid, on-grid, off-grid and LFP storage range | — | — | — | — |
| AN-SCI-EVO series (SCI-EVO-4200 and SCI-EVO-6200) | 4,200 W and 6,200 W | — | — | — |
| Grid-tied string, hybrid and storage inverters | — | — | — | — |
| Off-grid and hybrid inverters, 3-5 kVA class | 3-5 kVA on the units we found listed | — | — | — |
| Residential hybrid inverters and storage | — | — | — | — |
| KSTAR New Energy PV inverters and storage | — | — | — | — |
| Grid-tied, hybrid and battery inverters | — | — | — | — |
| Residential, commercial and microgrid storage inverters | — | — | — | — |
| PIP-LV, PIP-MS/MSX and LVX series | 1-6.2 kW class across the range | — | — | 1 year |
| PV1800 series inverter/charger | 1-6.2 kW | — | — | — |
| H2 hybrid series (LV, LV split-phase, HV split-phase) | — | — | — | — |
| SMT series residential and commercial hybrid inverters | — | — | — | — |
| Integ M Series | 3-50 kW across the Integ M Series | — | — | — |
| 48 V hybrid inverters, 5-8 kW class | 5-8 kW | Up to 98% | — | 1 or 10 years, depending on the seller |
| Off-grid and backup inverters and hybrid inverter/chargers | — | — | — | — |
Dashes are figures the manufacturer does not publish, not zeros. Where two products differ on a spec, which one matters depends on your roof and your usage — a higher efficiency panel earns its premium on a small roof and rarely on a large one.
Solis is the inverter brand of Ginlong Technologies, and by shipment volume it’s one of the biggest names in the business — it holds the global #1 spot in residential single-phase string inverter shipments and ranks as the world’s third-largest inverter manufacturer overall. That scale is what lets Solis sit in the mid-tier price band while still offering hardware that performs close to premium brands like Huawei or SMA. It’s a sensible string or hybrid pick for homeowners who want proven volume and a real local support channel without paying a premium-brand markup.
Local availability
Solaric, one of the longest-running installers in the Philippines, is a confirmed authorized distributor of Solis and carries a wide range — from small single-phase units (the Solis-mini and Solis-1P lines) up through three-phase commercial inverters. Solis has reportedly been present in the Philippine market since around 2016, which is long enough that a fair number of local installers are already familiar with configuring and troubleshooting it, and that matters more than a spec sheet once your system is actually running. That said, Solaric appears to be the clearest named distributor we could verify — if you’re buying through a smaller reseller or an online marketplace listing, confirm you’re getting an authorized unit with local warranty backing rather than a grey-market import.
Efficiency, lineup & warranty
Solis’s current residential lineup runs on its S6 platform: S6 series grid-tie string inverters, and S6-EH1P hybrid units spanning roughly 3.8kW to 11.4kW for single-phase homes, with larger three-phase hybrid and string options above that. Efficiency figures are genuinely strong — Solis’s larger three-phase string inverters post peak efficiencies up to 98.8% with CEC-weighted efficiency around 98.3%, and smaller residential units still land in the high-97% range. The hybrid units are UL 9540-certified for battery pairing and support HV lithium batteries from several major brands (BYD, Pylontech, LG among them) — but pairing with a battery not on Solis’s published compatibility list voids the inverter warranty, so that list is worth checking before you commit to a battery brand.
Warranty terms vary more than we’d like by market and model: Solis commonly ships with a 5-year standard warranty in some regions (extendable to 10, 15, or up to 20 years as a paid add-on you register within 12 months of install), while some residential hybrid models in other markets list a 10-year standard term out of the box. Confirm the exact standard warranty year count and extension pricing for the specific model and market your installer is quoting — don’t assume it matches what you’ve read about a US or European listing.
Value for money
This is Solis’s strongest case. Rough Philippine pricing for the inverter unit alone runs about ₱25,000–₱35,000 for a 5kW hybrid, ₱30,000–₱42,000 for 6kW, and ₱55,000–₱75,000 for 10kW — figures pulled from retailer and installer listings, so treat them as ballpark and always get an itemized quote. At that price point you’re getting efficiency and monitoring (Solis Cloud) that compare well against premium brands costing noticeably more, which is exactly the value-tier positioning Solis is going for.
Where it falls short
Within the Philippine value-inverter segment, Solis is generally the more affordable option against Deye at comparable capacity, which also has a growing local footprint and stronger off-grid feature sets on some models — so if off-grid performance matters more to you than price, Deye is worth a closer look even though it typically costs more. We also found at least one source describing firmware update complications on newer models; we don’t have enough independent, verified complaint volume to call this a pattern rather than an isolated report, but it’s worth asking your installer about firmware stability on the specific model you’re quoted. The standard warranty length also varies confusingly by model and market, so get it in writing rather than assuming.
Who it’s best for
Solis suits homeowners who want a high-volume, well-proven brand with a verifiable Philippine distribution channel and strong efficiency numbers, without paying premium-brand pricing. If off-grid performance is your top priority, it’s worth cross-shopping against Deye before you decide — see our other reviews for how the mid-tier field compares.