Go Solar with Qmac, Install one battery. Walk away with two.
Electricity prices in Ireland aren’t getting any cheaper. With Qmac’s August offer, you can get ahead of it — turning free daylight into real, lasting savings before rates rise again.
For a limited time, every qualifying GoodWe solar and battery installation comes with a free second 5kW GoodWe battery, stacked straight onto your system — doubling your storage without doubling your setup.
More storage means more independence after dark, and a bigger dent in every bill that follows.
T&Cs apply:
- Offer valid only for installations confirmed with deposit paid by 31st August 2026
- Requires solar PV panels installed together with a GoodWe battery (5kW or 8kW)
- Limited to one free 5kW GoodWe battery per installation, regardless of battery quantity purchased
- Cannot be combined with other offers, promotions, or discounts
- Subject to availability while promotional battery stock lasts
Limited-time Offer! Sale ends in:
Same Install. Double The Storage.
Get a custom solar and battery design from our installation team, mapped to your roof and your actual usage. We’ll size your system, confirm your GoodWe hardware, and show you exact pricing, SEAI supports, and projected savings — plus, if you install before July 31st, one 5kW battery stacked on for free.
Install any GoodWe battery → we stack a 5kW battery on for free. 5kW or 8kW, one free module either way.
GOOGLE REVIEWS
Some words from our happy clients
How It Works
Four steps. One free battery.
1
A Qmac engineer sizes your panels and battery stack around your actual usage — not a generic package.
2
5.12kWh or 8.32kWh, either GoodWe module works as your primary battery and qualifies for the offer.
3
Panels go up, the GW5K-EHA-G20 goes in, and a free 5kW battery is stacked on at the same install.
3
More storage means more daylight generation saved and drawn down after dark, instead of the grid.
// The Hardware
One GoodWe stack. Built to grow.
Every install runs on GoodWe’s stackable all-in-one platform — a single hybrid inverter with battery modules that click straight on top. Your free battery isn’t a bolt-on, it’s part of the same unit.
Core unit
GoodWe Hybrid Inverter
kW Single-Phase · INVERTER
| Nominal AC output | 5.0 kW |
| Max efficiency | 97.6% |
| MPPTs | 2 |
| Full home backup | 63A bypass |
| Switchover time | <4ms |
| Rating | IP66 |
Choose this
GoodWe 5kW Battery
5.12kWh LiFePO4 · Battery Module
| Capacity | 5.12 kWh |
| Chemistry | LiFePO4 |
| Stackable | Up to 6 modules |
| Qualifies for free battery offer | Yes |
Or this
GoodWe 8kW Battery
8.32kWh LiFePO4 · Battery Module
| Capacity | 8.32 kWh |
| Chemistry | LiFePO4 |
| Stackable | Up to 6 modules |
| Qualifies for free battery offer | Yes |
No spare box in the attic. It's one stack, one system.
GoodWe’s platform is built so battery modules click straight on top of the inverter — no separate cabinet, no extra wiring run across the garage. That’s what makes the free battery genuinely worth having: it slots into the tower you’re already installing.
Need more later? As an EV or heat pump pushes your usage up, adding a third or fourth module is a stack, not a redesign.
Frequently Asked Questions
Does it matter which battery size I choose?
No. Whether you go with the 5.12kWh or the 8.32kWh module as your main battery, you still receive one free 5kW battery on top. The offer is the same either way.
If I install two 8kW batteries, do I get two free batteries?
What happens when the promo stock runs out?
Do I need to buy solar panels to qualify?
Can I add more battery capacity later?
Can I finance my install instead of paying upfront?
Lock in your free battery before it's gone.
Tell us a little about your home and a Qmac engineer will be in touch to arrange your free solar & battery survey — while promo stock lasts.
Limited-time Offer! Sale ends in:
Going Solar Just Got More Affordable
More affordable than ever, with humm.
The upfront cost of solar shouldn’t be what stops you going solar. Through our finance partner humm, you can spread the cost of your Qmac install — panels, inverter, and battery stack — over terms of up to 10 years, and the ability to clear the balance early. It’s a straightforward, regulated way to start saving on your energy bills now, instead of waiting until you’ve saved the full amount upfront.
