The Fox ESS S1000-G2 1.0 kW Single-Phase Solar Inverter is the ideal starting point for UK installers seeking dependable performance in compact PV systems. Purpose-built for smaller domestic or light-commercial arrays, it delivers a straightforward fit-and-forget experience while maintaining high conversion efficiency and full G99 compliance.
Smart Hybrid Power for UK Homes and Installers
Compact yet capable, the S1000-G2 gives installers the flexibility to optimise single-string layouts without unnecessary complexity. Its single MPPT handles up to 1500 W PV input, with a wide voltage window and rapid tracking response. The fan-free IP65 enclosure simplifies external mounting, keeps noise below 25 dB, and eliminates moving parts that often require maintenance.
Installer-Ready Safety & Compliance
Every unit ships with integrated surge protection, residual-current and insulation monitoring, and full anti-islanding logic to speed commissioning under G99. Certified to EN62109, it ensures electrical and thermal safety across the lifetime of the installation. Built-in FoxCloud connectivity allows straightforward setup and real-time verification before hand-over, cutting call-backs and site visits.
Key Installer Features
- Single MPPT with 99% tracking accuracy and wide 80–500 V window
- Up to 1000 W AC output / 1500 W max PV input
- Fan-free IP65 design for quiet, outdoor-ready mounting
- Pre-installed RCM and Type II DC / Type III AC surge protection
- FoxCloud Wi-Fi / LAN monitoring with optional 4 G dongle
- Fully compliant with UK G99 connection requirements
If you’re wondering how the S1000-G2 performs on multi-aspect or shaded roofs, its precise MPPT tracking and wide 80–500 V range let each string operate efficiently throughout changing British light conditions—helping installers deliver predictable yield even in less-than-ideal orientations.
Specification data verified from Fox ESS S(G2) documentation (V3.4, April 2025).
Smart Monitoring & Installer-Grade Connectivity
Equipped with integrated FoxCloud monitoring, the S1000-G2 allows installers and end-users to check performance instantly from any connected device. Built-in Wi-Fi and LAN provide plug-and-play access, while an optional 4 G module supports remote or rural sites. Standard data logging ensures clear commissioning records, while RS485 and CAN ports make BMS and meter integration straightforward.
Seamless Integration with Solar Panels & Battery Systems
The Fox ESS S1000-G2 works seamlessly with solar panels and can form part of a future-ready hybrid setup using Fox’s high-voltage LFP architecture. For systems that may add storage later, its communication platform ensures direct compatibility with Fox ESS batteries and controllers. This makes it a flexible choice for installers designing scalable residential PV systems across the UK.
Compact Design & Rugged Construction
Weighing just 5.4 kg and measuring 290×220×116 mm, the S1000-G2 can be wall-mounted indoors or outdoors with minimal effort. The IP65 aluminium housing and fan-less cooling system keep operation silent (<25 dB) and dust-free, ideal for both plant-room and external installations. Its compact form factor helps reduce handling time and mounting hardware costs on site.
Installer Guidance & System Notes
String design & MPPT layout
Stay within the 80–500 V operating window and observe the maximum input current of 12.5 A. For single-aspect arrays, one balanced string per MPPT is optimal to maintain peak yield across seasonal light variation.
Battery configuration & sizing
When paired through a compatible controller, start with around 5–10 kWh of Fox LFP storage for domestic use, scaling up as demand increases—no inverter upgrade required.
Grid compliance & safety
Fully compliant with G99 and EN62109 standards. Integrated anti-islanding, insulation and residual-current monitoring ensure safe and reliable UK grid connection.
Why We Recommend the Fox ESS S1000-G2
At Evergy, we recommend the S1000-G2 as an installer-friendly, space-saving inverter that delivers consistent efficiency for small British PV arrays. Its robust IP65 construction, quiet operation and proven FoxCloud monitoring platform make it a practical choice for both new and retrofit systems. Evergy is the renewable division of LAMPS Electrical—an independent UK wholesaler with over 15 years of trade experience supporting professional installers nationwide.
Compare in the Fox S(G2) Range
| Model |
Max PV (W) |
Rated AC (W) |
MPPTs |
Voltage Window (V) |
Max Eff. |
Dimensions (mm) |
Weight (kg) |
| S1000-G2 |
1500 |
1000 |
1 |
80–500 |
97.4 % |
290×220×116 |
5.4 |
| S1500-G2 |
2250 |
1500 |
1 |
80–500 |
97.6 % |
290×220×116 |
5.4 |
FAQs – Fox ESS S1000-G2 1.0 kW Single-Phase Solar Inverter
How does the S1000-G2 differ from the S1500-G2?
The S1500-G2 increases AC output to 1500 W and supports a higher PV input, ideal for slightly larger arrays.
Is it compatible with Fox ESS batteries?
Yes — the S(G2) platform can integrate with Fox high-voltage LFP batteries when used with the appropriate controller.
Can it be mounted outdoors?
Absolutely. Its IP65 aluminium casing and fan-free cooling make it perfect for external installation in British weather.
How can I monitor system performance?
Through FoxCloud — using the built-in Wi-Fi or LAN connection, or optional 4 G for remote locations.
What are the product dimensions and weight?
Approx. 290×220×116 mm and 5.4 kg. Compact and lightweight for easy wall mounting.
For expert guidance on compatibility or system design, contact Evergy — trusted UK distributor of leading solar brands.
