Solar AC
Your hottest hours are your sunniest hours
That coincidence is the whole product. Panels feed DC straight into the compressor — no battery, no charge controller, no solar inverter. Through the middle of the day, when cooling demand peaks and your tariff is at its most expensive, the unit runs on sunlight. When cloud passes or evening falls, it draws from the grid automatically. The cooling never breaks.
99.9%
MPPT conversion efficiency
80–380 VDC
PV input range, panels in series
-10°C — +50°C
Operating temperature range
Built in
Wi-Fi app control
How it works
One unit, two power sources, across a full day
Afternoon — solar first, grid tops up
As the sun drops the array can no longer cover peak demand on its own. The unit keeps taking everything the panels can give and draws only the shortfall from the grid — the AC/DC auto-balance that gives the product its name.
Illustrative model of a typical clear day. Actual solar contribution varies with panel orientation, season, weather and how hard the unit is working.
What's not in the system
Three expensive components you don't have to buy
Most solar cooling proposals fail on the balance-of-system cost rather than the panels. A hybrid AC/DC unit removes that layer entirely.
No battery bank
Batteries are usually the largest single cost in a solar installation, and the first component to need replacing. Because this unit consumes solar power at the moment it is generated, there is nothing to store and nothing to replace.
No solar inverter
There is no DC-to-AC conversion step, because the compressor is a DC machine and takes the panels' output as it comes. That removes both the hardware cost and the conversion losses that go with it.
No charge controller
MPPT tracking is built into the outdoor unit. Panels connect with standard MC4 connectors straight into the machine, which keeps installation close to a conventional split-unit job.
Size it and cost it
What would it save you?
Tell us about the space and how you use it. We'll match a unit, size the array, and estimate what comes off your bill.
Hours falling roughly between 7am and 5pm — only these can be covered by solar.
Pick the bracket your monthly consumption falls into — solar saves you at that rate.
Matched unit
Gamma Solar AC 18,000 BTU
GI-SAC-18K · 2 HP · 1.5 Ton · 20–30 m²
6 × 330W = 1.98 kWp
Suggested array, wired in series
Powered by solar
70%
Share of running energy covered by the panels
1,441
kWh per year
3,025
EGP per year
0.65
tonnes per year
29
trees planted
The difference
Against a conventional split unit
Conventional inverter AC
- Draws from the grid for every hour it runs
- Cooling cost rises with each tariff increase
- Heaviest consumption lands in the most expensive bracket
- Full running emissions for the life of the unit
Gamma hybrid AC/DC Solar AC
- Runs on solar DC through the daylight hours, grid only as backup
- The solar share is insulated from tariff increases
- Peak cooling coincides with peak sunshine, cutting the top bracket first
- Daytime cooling produces no grid emissions at all
Technical data
The full range, side by side
Manufacturer-published figures for the hybrid AC/DC line, supplied to Gamma under an OEM agreement.
| Model | 9,000 BTUGI-SAC-09K | 12,000 BTUGI-SAC-12K | 18,000 BTUGI-SAC-18K | 24,000 BTUGI-SAC-24K |
|---|---|---|---|---|
| Capacity & power | ||||
| Cooling capacity (BTU) | 9,000 | 12,000 (3,000–13,300) | 18,000 (4,100–20,400) | 24,000 (6,100–27,000) |
| Cooling capacity (W) | 2,700 (800–3,400) | 3,510 (900–3,900) | 5,070 (1,200–6,000) | 6,450 (1,800–7,900) |
| Power input, cooling (W) | 680 (150–1,030) | 940 (190–1,270) | 1,400 (220–2,100) | 1,790 (300–3,200) |
| Heating capacity (W) | 3,100 | 4,100 | 6,100 | 7,800 |
| Power input, heating (W) | 730 | 1,170 | 1,770 | 2,290 |
| Recommended area (m²) | 9–14 * | 12–20 | 20–30 | 30–42 |
| Efficiency | ||||
| T1 EER (W/W / BTU/W) | 3.97 / 13.50 * | 3.75 / 12.75 | 3.60 / 12.35 | 3.60 / 12.30 |
| COP (W/W) | — | 3.50 | 3.45 | 3.40 |
| Dehumidification (L/h) | — | 1.3 | 1.7 | 2.5 |
| Solar & electrical input | ||||
| Suggested panels in series | 3 × 280–400W · 3 × 400–500W | 4 × 280–400W · 3 × 400–500W | 6 × 280–400W · 5 × 400–500W | 8 × 280–400W · 7 × 400–500W |
| PV input voltage | 80–380 VDC | 80–380 VDC | 80–380 VDC | 80–380 VDC |
| Max PV current | ≤ 12 A | ≤ 12 A | ≤ 12 A | ≤ 12 A |
| AC input | 1Ph 208–240V / 50–60Hz | 1Ph 208–240V / 50–60Hz | 1Ph 208–240V / 50–60Hz | 1Ph 208–240V / 50–60Hz |
| Build | ||||
| Compressor | — | WHP04200 · 2× Rotary Inverter (Highly) | WHP05600 · 2× Rotary Inverter (Highly) | 5RD198 · 2× Rotary Inverter (Panasonic) |
| Refrigerant | R410A | R410A | R410A | R410A |
| Noise, indoor / outdoor dB(A) | 40 / ≤ 51 | 42.5 / ≤ 52 | 46 / ≤ 55 | 50 / ≤ 58 |
| Indoor unit W×H×D (mm) | — | 840 × 205 × 295 | 1080 × 330 × 237 | 1080 × 330 × 237 |
| Outdoor unit W×H×D (mm) | — | 802 × 564 × 323 | 802 × 564 × 323 | 900 × 700 × 337 |
| Max refrigerant pipe run | 15 m | 15 m | 20 m | 25 m |
* Derived rather than manufacturer-published: the 9,000 BTU coverage area is scaled from the 12,000 BTU figure, and its EER is calculated from rated cooling divided by rated input. All other values are as published. Specifications may change without notice — request a current datasheet before ordering.
Best fit
Where it saves the most
Homes and villas
Households in the upper tariff brackets, where daytime cooling is what pushes the bill into the most expensive tier.
Mosques and prayer halls
Cooling demand peaks at midday prayers — exactly when solar output is strongest.
Clinics and pharmacies
Long daytime opening hours with a steady cooling load and no tolerance for interruption.
Offices
Working hours line up almost perfectly with the solar window, so most of the load is covered.
Shops and showrooms
Retail spaces that run cooling all day and feel every tariff increase directly.
Remote and weak-grid sites
Farms, desert road stops and sites where grid supply is limited, unstable or expensive to extend.
Ready to work out the numbers for your site?
Send us the room sizes and your recent bill, and our team will come back with a sized system and an installed price.