Published July 31, 2026 — PES Supply Brand Guide
GoodWe: Hybrid Inverters, ESA All-in-One, and SEMS+ Monitoring Brand Guide
GoodWe has emerged as one of the most competitive Chinese inverter manufacturers in the global residential and commercial solar market. The company's hybrid inverter portfolio—spanning the ES, EH, ET, and BT series—covers single-phase and three-phase applications with DC-coupled battery integration at price points that undercut European competitors by 20-35%. With the launch of the ESA all-in-one battery system and the SEMS+ energy management platform, GoodWe is positioning itself as a full home energy platform provider. For PES Supply customers navigating 50,000+ SKUs from 169 authorized brands, GoodWe represents the value-driven hybrid option for installers who want battery-ready capability without premium European pricing.
Browse our complete selection of GoodWe hybrid and string inverters. Pair them with battery storage and solar panels for a complete system. Standard delivery is 7-10 business days.
1. Company Overview
GoodWe was founded in 2010 and is headquartered in Suzhou, Jiangsu Province, China. The company is publicly listed on the Shanghai Stock Exchange (688399) and has grown rapidly to become a top-10 global inverter manufacturer by shipment volume. GoodWe operates R&D centers in China and maintains international offices including a US presence in Camden, Delaware. The company's product strategy focuses on hybrid and storage-ready inverters, having recognized earlier than many competitors that battery integration would become a standard requirement rather than a premium add-on.
GoodWe's market position is value-driven but quality-conscious. The company targets the mid-market segment between ultra-low-cost Chinese competitors and premium European brands, offering hybrid functionality, competitive efficiency, and increasingly robust warranty terms. GoodWe has invested in building a credible North American and European service infrastructure, recognizing that warranty support is the key trust factor for installers considering a Chinese brand. The SEMS+ platform and HEMS (Home Energy Management System) architecture reflect GoodWe's ambition to compete not just on inverter hardware but on integrated energy management.
2. Current Product Lines
ES Series (Hybrid, Single-Phase)
The GoodWe ES series is the company's core single-phase hybrid inverter line, available from 3 kW to 12 kW. The ES Uniq series (e.g., GW10K-ES-C10) features dual MPPT, up to 200% PV oversizing, UPS-level backup switching under 4ms, and broad battery compatibility including lithium and lead-acid. Peak efficiency reaches 97.6% with 99.9% MPPT efficiency. The ES series supports parallel connection of up to 6 units and operates in grid-tied, off-grid, and microgrid modes.
EH Series (Hybrid, Single-Phase)
The EH series is the newer single-phase hybrid platform (EH G2), available from 3 kW to 6 kW, designed for smaller residential applications with backup power capability and compact form factor.
ET Series (Hybrid, Three-Phase)
The GoodWe ET series is the three-phase hybrid inverter line, available from 5 kW to 15 kW. The ET G2 series features UPS-level backup switching, high-voltage battery compatibility (80-500V), and peak efficiency up to 98%. The ET series supports three-phase backup power up to 10 kW and automatically switches to backup mode during grid outages. Battery compatibility includes GoodWe Lynx Home, BYD HVS/HVM, and Pylontech.
BT Series (Hybrid, Three-Phase)
The BT series extends GoodWe's three-phase hybrid platform to higher power ratings, with 4 MPPT inputs and 20A input current per MPPT. The BT series supports DC/AC oversizing up to 200% and integrates with GoodWe's HEMS energy management architecture.
DT and GW Series (Grid-Tied String)
The DT series (three-phase, 4-25 kW) and GW series (single-phase, 1.5-6 kW) are GoodWe's grid-tied string inverters without battery capability. The DNS G4 and SDT G2/G3 variants represent the current generations for residential and light commercial grid-tied applications.
ESA All-in-One (AC-Coupled Battery System)
The ESA series, launched in its second generation in 2025, is GoodWe's all-in-one AC-coupled battery system. It bundles a hybrid inverter (3-10 kW single-phase, 5-30 kW three-phase), LFP battery modules (5-48 kWh per stack), switchgear, and energy management into a single pre-wired cabinet. Key features include:
- 2-4 independent MPPT inputs (more than most competitors)
- 63A full-home backup with under 4ms switching time
- IP66 enclosure for indoor/outdoor installation
- AI-driven AFCI 3.0 arc fault detection and aerosol fire suppression
- 1C charge/discharge rate for rapid battery cycling
- Compatibility with any existing solar inverter (AC-coupled retrofit)
ETR 125 (Commercial Battery-Ready)
Launched at Intersolar 2026, the ETR 125 is a commercial battery-ready inverter that can be installed grid-tied and combined with the BAT-C 200 liquid-cooled DC-coupled battery system at a later stage, offering a lower-cost entry point for commercial solar with future storage expansion.
3. Recent Releases (2025-2026)
In 2025-2026, GoodWe launched the ESA G2 all-in-one battery system globally, featuring aerosol fire suppression and AI-driven AFCI 3.0 arc fault detection. At Intersolar 2026, GoodWe showcased the ETR 125 commercial battery-ready inverter paired with the BAT-C 200 liquid-cooled battery system, targeting commercial customers who want to install solar now and add storage later without replacing equipment. GoodWe also launched the new SEMS+ energy management platform, which connects inverters, batteries, EV chargers, heat pumps, and smart loads through the HEMS architecture. The EzManager3000 home energy controller was introduced for integrated smart home energy management. GoodWe expanded its North American UL certifications and enhanced firmware for grid-support function compliance across the ET and ES series.
4. Certifications & Listings
- UL 1741 / UL 1741 SB: ET and ES series models certified for US interconnection, with UL 1741 SB compliance on current firmware
- IEEE 1547-2018: Grid-support function compliance including voltage and frequency ride-through
- California Rule 21: Smart inverter certified for California interconnection (applicable models)
- NEC 690.12 Rapid Shutdown: Compatible with SunSpec-based rapid shutdown systems
- IP66 enclosure: Rated for outdoor installation on ES, ET, and ESA series
- CEC listed: California Energy Commission listed for efficiency rebate eligibility
- VDE-AR-N 4105 / G98 / AS 4777: International grid compliance for global market coverage
5. Warranty Terms
GoodWe's warranty structure varies by product line and market. Hybrid inverters (ET, EH, ES series) carry a 5-year standard warranty that is extendable to 10 years with product registration; in some markets including Australia, a 10-year standard warranty applies on registered grid-tie and hybrid models. Grid-tied string inverters (DT, GW series) carry 5-year standard, extendable to 10 or 20 years. The ESA all-in-one system and Lynx Home batteries carry a 10-year product warranty with a 10-year performance warranty guaranteeing 70% capacity retention. Installers should verify current warranty terms for their specific market, as GoodWe has been progressively extending warranty coverage to match competitor offerings. The key caveat is that registration is required to unlock the full warranty term—unregistered units may remain at the 5-year base.
6. Popular Products at PES Supply
| Model | Type | Power | MPPT | Efficiency | Key Features | Price Range |
|---|---|---|---|---|---|---|
| GoodWe GW10K-ET | Three-phase hybrid | 10.0 kW | 2 | 98% peak | HV battery, UPS backup, BYD compatible | $2,000-$2,700 |
| GoodWe GW10K-ES | Single-phase hybrid | 10.0 kW | 2 | 97.6% peak | 200% oversizing, 48V battery, 6-unit parallel | $1,600-$2,200 |
| GoodWe GW5K-ET | Three-phase hybrid | 5.0 kW | 2 | 97.8% peak | Compact hybrid, residential backup | $1,400-$1,900 |
| GoodWe GW6K-ES | Single-phase hybrid | 6.0 kW | 2 | 97.6% peak | 48V battery, off-grid capable, IP66 | $1,200-$1,700 |
| GoodWe ESA G2 | All-in-one battery | 3-10 kW | 2-4 | ~97% | 5-48kWh, AC-coupled, AFCI 3.0, IP66 | $6,000-$12,000 |
7. Technical Comparison
| Feature | GoodWe | Sungrow | Fronius |
|---|---|---|---|
| Peak efficiency | 97.6-98% | 98.4% | 98.2% |
| Hybrid option | ES/EH/ET/ESA (DC-coupled) | SH series (DC-coupled) | GEN24 Plus (DC-coupled) |
| Standard warranty | 5 years (10 with registration) | 10 years | 5 years |
| Backup switching | <4ms (UPS-level) | ~20ms | Backup via PV Point |
| Battery compatibility | Lynx, BYD, Pylontech | Sungrow + third-party | Multiple brands |
| Cost per watt | $0.10-$0.18 | $0.12-$0.20 | $0.15-$0.25 |
| Monitoring | SEMS+ | iSolarCloud | Solar.web |
GoodWe's competitive advantage is hybrid functionality at the lowest price point among tier-1 manufacturers. The ES and ET series deliver DC-coupled battery integration, UPS-level backup switching under 4ms, and broad battery compatibility at 20-35% lower cost than Fronius or SMA equivalents. The ESA all-in-one system is differentiated by 2-4 MPPT inputs (most competitors offer 2) and AI-driven AFCI 3.0 safety. The trade-off is that GoodWe's base warranty requires registration to reach 10 years, and its North American service network is less mature than European competitors. The SEMS+ platform is functional but less polished than SMA's ennexOS.
8. Monitoring & Software
GoodWe's SEMS+ platform is the company's evolving energy management ecosystem:
- SEMS+ app and web portal: Real-time monitoring of solar production, battery state of charge, grid interaction, and home consumption
- HEMS integration: Home Energy Management System connects inverters, batteries, EV chargers, heat pumps, and smart loads (via Shelly smart plugs) for automated energy flow optimization
- EzManager3000: Intelligent home energy controller integrating solar, ESS, EV chargers, heat pumps, and conventional devices, managed through SEMS+
- Smart meter integration: Net metering data and export control for utility compliance
- Time-of-use and dynamic tariff support: Automated charge/discharge scheduling based on electricity rate schedules and dynamic tariff gateways
- Fleet management: Multi-site dashboards for installers managing residential and commercial portfolios
- API access: Modbus and API interfaces for integration with third-party energy management systems and home automation platforms
9. Installation Notes
- Wiring: GoodWe hybrid inverters use conventional series string wiring with dual or quad MPPT inputs. Verify string voltage calculations using GoodWe's sizing tool, ensuring cold-weather Voc stays below maximum input voltage and hot-weather Vmp stays within MPPT range.
- Grounding: GoodWe transformerless inverters do not require DC array grounding in most configurations. Follow NEC 690.43 for module and racking grounding.
- Rapid shutdown: GoodWe inverters are compatible with SunSpec-based rapid shutdown systems. An external rapid shutdown device or optimizer system may be required for NEC 690.12 module-level compliance.
- Grid code setup: Grid-support parameters and work modes are configured during commissioning via the inverter display or SEMS+ app. Select the correct country grid code. Work modes include general mode, backup mode, time-of-use, peak shaving, and zero-export.
- Battery integration: The ES series supports 48V batteries (lead-acid and lithium). The ET series supports high-voltage batteries (80-500V). Verify the battery is on GoodWe's compatibility list. Lithium batteries communicate via CAN bus or RS485.
- Backup configuration: GoodWe hybrid inverters provide backup power through a dedicated backup output. Connect critical loads to the backup output during installation. The under-4ms switching time provides UPS-level continuity for sensitive loads.
- Parallel stacking: The ES series supports up to 6 units in parallel for higher power. Configure master/slave communication and verify AC synchronization before energizing.
10. FAQ
Is GoodWe a reliable brand?
GoodWe is a publicly listed, top-10 global inverter manufacturer with UL certifications and a growing service network. While less established than SMA or Fronius, GoodWe has built credibility through competitive efficiency, robust hybrid functionality, and progressive warranty extensions.
What is the difference between ES and ET series?
The ES series is single-phase hybrid with 48V battery compatibility. The ET series is three-phase hybrid with high-voltage battery compatibility (80-500V). Choose ES for smaller residential systems and ET for three-phase or higher-power applications.
Does GoodWe require registration for full warranty?
Yes. GoodWe's base warranty is 5 years, extendable to 10 years with product registration via SEMS Portal. In some markets, 10-year standard warranty applies. Unregistered units may remain at the 5-year base term.
Can the ESA work with my existing inverter?
Yes. The ESA is an AC-coupled all-in-one system that works alongside any existing solar inverter—including Fronius, SolarEdge, Enphase, SMA, or GoodWe—making it ideal for retrofitting battery storage without replacing your current inverter.
How long does delivery take?
All GoodWe orders from PES Supply ship within 7-10 business days. We do not offer same-day or free shipping.
Sources & Standards
- UL 1741 — Standard for Inverters, Converters, Controllers and Interconnection System Equipment
- IEEE 1547 / California Rule 21 — Interconnection and smart inverter requirements
- NEC 690.12 — Rapid shutdown of PV systems on buildings
- GoodWe ESA/ET/GW series manufacturer datasheets and warranty terms
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Explore our full inventory of GoodWe hybrid, string, and ESA all-in-one inverters. PES Supply carries 50,000+ SKUs from 169 authorized brands—your B2B electrical and solar distribution partner. Shop all GoodWe products. Delivery is 7-10 business days on all orders.
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