What actually determines your solar and inverter cost
We won't quote you a fake fixed price here, because it would be wrong for most people who read it. Instead, here's exactly what drives cost up or down, so you can budget realistically before you request your exact quote.
Six things that determine your price
Your load (what you're actually powering)
A few lights and a fridge cost far less to back up than multiple air conditioners, pumps, and office equipment. This is the single biggest driver of cost.
Battery type and capacity
Lithium batteries cost more upfront but last longer and need less maintenance. Tubular batteries cost less initially but are replaced more often. Capacity (how many hours of backup you want) also drives price directly.
Inverter size and wave type
Pure sine wave inverters cost more than modified sine wave units, but protect your appliances better. Higher kVA ratings for heavier loads also cost more.
Panel wattage and count
More panels, or higher-wattage panels, mean higher solar-generation capacity and higher upfront cost, but also more independence from the grid.
Roof and installation conditions
Roof type, height, access, and the distance between your panels, inverter, and battery room all affect labour and material costs.
Backup duration
A system built for long backup hours (for frequent, long outages) needs more battery, so it costs more than a basic short-backup setup.
Three common starting points
These are illustrative categories, not quotes. Your exact system and price come from your site assessment.
Essential Backup
Studio flats, small apartments, single rooms
Powers: Lights, fans, a fridge, TV, phone and laptop charging
Backup: A few hours of backup during outages
Whole-Home System
3 to 5 bedroom homes
Powers: Lights, fans, fridge/freezer, TV, router, and 1 or 2 air conditioning units
Backup: Extended backup through most outages, day or night
Commercial / Estate System
Offices, clinics, schools, multi-home estates
Powers: Critical business equipment plus general office or facility loads
Backup: Sized around your operating hours and critical-load requirements
Frequently asked questions
Why don't you publish fixed prices?+
Because a fixed price would be misleading. Two homes with the same number of bedrooms can need very different systems depending on what they actually run. We'd rather calculate your actual load and give you an accurate written quote than publish a number that doesn't apply to your situation.
Is solar cheaper than running a generator?+
Solar has no daily fuel cost, which is the main ongoing expense of running a generator. The upfront investment in solar is higher, but it's a one-time cost (plus occasional maintenance) rather than a cost that repeats every single day you need power.
Can I start small and expand later?+
In many cases yes. We can design a system with room to add panels or battery capacity later, and we'll tell you upfront if your budget tier has that flexibility or not.
Do you offer payment plans?+
Discuss your budget with us directly during your quote call. We'll be upfront about what's possible for your specific project.
Six promises we put in writing
They're printed on every quote we send, so you can hold us to them.
- 1
The price on your quote is the price you pay
No extra charge for cable, transport or anything else once work starts. The price only changes if you add appliances to the list.
- 2
It carries what we said it would, or we fix it
Your quote lists every appliance the system will power and for how many hours. If it can't do that in the first 30 days, we adjust it or add to it at our own cost.
- 3
Pay the balance when it's working
Your deposit covers the equipment. You pay the rest after we install it and you see it working.
- 4
1-year workmanship warranty, in writing
If a fault comes from our work, like a loose connection, bad wiring or poor mounting, we fix it free for your first year. That's on top of the maker's warranty on your equipment.
- 5
Two free check-ups in your first year
We come back at 6 months and 12 months to check your panels, inverter, battery and wiring, so a small problem doesn't turn into a big one.
- 6
A reply in 2 hours, a technician in 48
Message us on WhatsApp any time, day or night, and we reply within 2 hours. If something is wrong, a technician comes to you within 48 hours.
Get your exact price, not an estimate
A site assessment gives you a written quote based on your load, not a guess.
Or call us directly: 0813 209 7317 / 0708 695 0312