The Technology We Install
We select hardware based on UK climate performance, reliability, and warranty strength. Every component is MCS approved and backed by a manufacturer warranty. We don't install what's cheapest. We install what lasts.
Solar Panels
We install premium tier 1 panels from leading global manufacturers. Both are well established in the UK and backed by strong warranties.
Jinko Solar (Tiger Neo range)
A leading global manufacturer with strong UK distribution. We install Jinko N-type monocrystalline panels for most commercial installations.
- Power output: 430W to 575W depending on model
- Technology: N-type TOPCon (higher efficiency in low light)
- Efficiency: up to 22.5%
- Warranty: 25-year performance / 15-year product
- Best for: Commercial rooftops, ground-mount systems, farm buildings
Longi Solar (Hi-MO range)
Longi is the world's largest monocrystalline wafer manufacturer. Their Hi-MO range delivers excellent performance in the UK's variable weather.
- Power output: 410W to 550W
- Technology: Half-cut monocrystalline PERC
- Efficiency: up to 21.5%
- Warranty: 25-year performance / 12-year product
- Best for: Larger commercial arrays, flat roof installations
Inverters
The inverter converts DC from your panels to AC for your building. We install Solis hybrid inverters as standard across residential and commercial installations.
Solis Hybrid Inverters
Solis is one of the most widely installed inverter brands in the UK. Reliable, well supported, and compatible with all the panels we fit. We install Solis as standard across both residential and commercial installations.
- Power range: 1.5 kW to 125 kW (single or three phase)
- Efficiency: up to 98.6%
- Monitoring: SolisCloud app (real-time generation and consumption data)
- Warranty: 5-year standard (extendable to 10 years)
- Best for: Most residential and commercial solar PV installations
Battery Storage
Store daytime generation for evening use. Reduce grid dependence and protect against price spikes.
Tesla Powerwall 3
Tesla Certified InstallerGMC Solar is a Tesla Powerwall certified installer. We design and install Powerwall 3 as part of new solar installations or as a battery retrofit.
- Usable capacity: 13.5 kWh per unit
- Continuous power: 5 kW (7 kW peak)
- Scalable: up to 4 Powerwalls (54 kWh total storage)
- Backup: Full home or building backup during grid outage
- Monitoring: Tesla app
- Warranty: 10 years / unlimited cycles
Fox ESS Batteries
For installations where Tesla specification is not required, we install Fox ESS battery storage as a cost-effective alternative.
- Usable capacity: 3.5 kWh to 24 kWh (scalable)
- Chemistry: LFP (Lithium Iron Phosphate) — safest lithium chemistry
- Warranty: 10 years
- Best for: Budget-conscious installations, retrofit upgrades, smaller systems
Pure Drive Batteries
Pure Drive offers robust, UK-supported battery storage for installations where standalone battery performance is the priority. Fully compatible with Solis hybrid inverters.
- Usable capacity: scalable — configured to match system size
- Chemistry: LFP (Lithium Iron Phosphate) — safest lithium chemistry
- Warranty: 10 years
- Best for: All-electric homes, high self-consumption setups, retrofit to existing systems
Mounting Systems
Every installation uses structural mounting systems rated for UK weather conditions and building regulations.
Ready to discuss your installation?
Call Neil Craig direct. No sales team. No call centre. Just an honest conversation about what your building needs.
Or email: info@gmcraig.com · GMC Developments Ltd, Berwick-upon-Tweed, TD15 1FA