Commercial Solar PV Systems
Power Your Business with Sustainable Energy
We design and deliver commercial-grade solar PV systems that help your business cut energy costs, reduce carbon footprint, and future-proof operations all while leveraging available grants and delivering reliable performance for decades.
Whether you’re running a warehouse, office, farm, or industrial facility, we engineer tailored systems that fit your operations, energy profile, and building structure backed by expert installation and ongoing support.
Our Commitment to Quality
If you are looking for the cheapest quote, this site is not for you. If you are looking for the best value, read on..
Why Solar for Your Business?
Installing a Solar PV system on your business or commercial operation is one of the smartest financial and environmental decisions you can make. It allows you to:
Lower your energy bills — gain control over your electricity spend
Demonstrate sustainability leadership — support your ESG goals
Claim up to €160,000 in SEAI Commercial Grants
Add battery storage to protect against rising costs & grid instability
Enhance property value and operational resilience
What Sets Moontree Solar Apart?
Tailored Engineering for Commercial Demands
Commercial systems require a fully thought out structure to harness the panels fitted. We design based on;
- Usage profile & energy demand
- Site layout, roof structure, and shadows
- Tariff structure (including dynamic pricing)
- Integration with battery storage, EV chargers, immersion diverters, and more
- Potential for expansion or future upgrades
Full Grant Support – From Start to Finish
Many installers mention the SEAI Non-Domestic Microgeneration Grant (NDMG). We guide you through the process, from concept to claim.
- Up to €162,600 available depending on system size (up to 1000kWp)
- Grant application support prior to installation.
- SEAI Grant claim assistance guidance (we help with calculations & evidence)
- NDMG Registered Installer – we're qualified and approved
- NC7 applications to ESB Networks
- BER and system documentation
- Manufacturer certification & compliance
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We also assist with:
Quality Systems that Last
In a commercial setting, downtime can be costly losing valuable savings. That’s why we insist on;
- Premium Tier 1 Brands – Sigenergy, Saj, Sofar, Dyness, Jinko & TW Solar.
- High-efficiency monocrystalline panels with 25–30 year warranties
- Oversized cabling (6mm² as standard), double insulation, and shadow analysis
- Fireback protection, surge protection, and proper isolator setups
- Precise string design, optimisers where needed, and load balancing
Return on Investment (ROI)
A well designed commercial system can make its money back in just 3-4 years, depending on the site size and energy profile. Adding batterys and a Gateway will extend the ROI slightly to maybe 4-5 years, but once paid will provide even more return on your investment for the many years to follow. Of course, this is estimated, every site is unique, but this is a good guideline based on experience. Being Smart and planning for the long term will provide increased value and convenience to your system better long term savings.
Maximising ROI means:
- No two businesses are the same, energy requirements, time of use and battery storage are all factors unique to the site. The shortest ROI will not necessarily the best.
- Lowering cost by stripping off batterys, gateways and hot water diverters will reduce the ROI in the short term, but provide less value in the long term.
- It is important to start by choosing quality products as a basic, then choosing the correct amount of battery storage required and other products such as hot water diverters or Gateways – Rationalise the products, what is needed and why.
The system needs to be fit for purpose and then its ROI established.
What’s in a Commercial Solar System?
Your system will likely be made up of:
Solar Panels (Jinko or TW Solar 445W or 620W)
Hybrid or String Inverters (Sigenergy or SAJ)
Li-ion Battery Storage (Stackable, Safe)
- Gateway (Sigenergy) To function off grid, Immersion diversion & Backup.
Immersion diverter (to heat water)
EV Charger (optional)
- AC/DC Isolators, Surge Protection, Sub Boards
Smart Monitoring via Wi-Fi or LAN
We also assist with:
System integration with BMS
Export Limitation (if required)
Network load profiling
Project Process – What to Expect
Initial Consultation – We assess your energy usage, site, and goals
On-Site Survey – For accuracy, string layout, cabling, and compliance
- Proposal & Grant Support – We prepare a detailed proposal and assist with SEAI application
NC7 & Planning (if required) – We handle all paperwork
Installation & commissioning – Carried out by our trained, certified team
Training – We hand over with full documentation & training
Post-Install Support – We remain available for service, monitoring & advice
Common Issues – And How We Avoid Them
We often see rushed installs result in:
> Roof leaks, broken tiles
> Fire risks from poor DC cable connections
> Mismatched panels & inverters
> Poor performance
> Shadowing issues not accounted for
We prevent these when installing by:
> Using qualified trades for every step
> Factoring in shadows and roof types
> Installing optimisers where needed
> Never using cheap or unverified brands
> Designing with expansion in mind
Technology & Future-Proofing
We work with brands like Sigenergy and SAJ that offer:
Smart battery management (BMS)
Up to 10-year warranties
Remote diagnostics & app-based controls
Stackable, modular systems with future expandability
Your system is designed not just for today — but for the future of energy.
Typical Commercial Pricing & Grant Tiers
| System Size | Grant (SEAI NDMG) | Ideal For | ROI |
|---|---|---|---|
| 6 kWp | €2,400 | Small shops, clinics | ~5 years |
| 10 kWp | €3,600 | Offices, garages | ~4–5 years |
| 30 kWp | €8,600 | Warehouses, schools | ~4 years |
| 50 kWp | €12,500 | Factories, farms | ~3–4 years |
| 100 kWp | €22,600 | Industrial, Agri | ~3 years |
