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Gorilla Power 12800W Diesel Generator with Key Start - GP12800DE – High-Performance & Heavy-Duty Power
£3,695.00 Inc VAT
[£3,079.17 Ex VAT]
FULL DESCRIPTION

Gorilla Power GP12800D — 12,800W Diesel Generator (ATS-Ready)
Built for serious power. Heavy-duty diesel set delivering 12,800W max / 12,000W running with 35 L fuel tank, recoil / key / electric start and ATS connection for automatic backup. Ideal for industrial loads, site cabins, or whole-home circuits (via transfer switch).
🔎 Where This Model Sits in the Gorilla Power Range
From ultra-portable inverters to large dual-fuel & diesel sets — this GP12800D is the top-tier capacity in the range.
💡 Key Features
- 12,800W max / 12,000W running — drives large plant, site cabins & backup circuits.
- Diesel powered — efficient, high-torque output with long engine life.
- Recoil / key / electric start — dependable starts in tough conditions.
- ATS connection ready — auto-start on mains failure (ATS box included).
- 35 L fuel tank — extended runtime for longer shifts.
- Low-oil shut-off — built-in engine protection.
Run multiple heavy loads together — manage start surges and socket amperage limits.
🔌 Sockets & Inputs — Front Panel at a Glance
High-draw appliances / distribution boards.
Low-voltage tool circuits (site use).
Interface for auto-start & monitoring.
⚡ Running vs. Starting Watts — Know the Difference
Typical values — always check device labels. Respect socket limits (e.g., 32A at 230/240V ≈ 7.4 kW per outlet) and balance loads across outputs.
📐 What Size Generator Do I Need?
| Item | Typical Running | Typical Starting | GP12800D? |
|---|---|---|---|
| LED TV + Router + Lights | 150–250W | ≈ Same | ✅ Many circuits |
| Fridge-Freezer | 120–200W | 800–1200W | ✅ Multiple units |
| Work Lights (LED/Halogen) | 300–1000W | ≈ Same | ✅ Banks of lights |
| Microwave | 800–1200W | ≈ Same | ✅ With other loads |
| Circular Saw (7¼") | 1200–1800W | 1800–2400W | ✅ Yes |
| Space Heater / Kettle | 1500–2000W | ≈ Same | ✅ Several at once |
| Cement Mixer | 800–1500W | 2000–3000W | ✅ Yes |
| Air Compressor (≈3 HP) | 2200–2600W | 5000–6500W | ✅ Yes (solo start) |
| Welder (≈200–250A) | 5.5–6.5kW | 6.5–7.0kW | ✅ Yes |
| Water Heater (electric) | 3–4kW | ≈ Same | ✅ Solo circuit |
| Site Cabin (lights + heaters) | 4–8kW | Varies | ✅ Yes (balance) |
| Small Tower A/C | 1.5–1.8kW | 2.4–3.0kW | ✅ Multiple units |
Guide only — add up running watts for items used together, then ensure the single highest starting surge and per-socket amps stay within limits.
🧩 Can I Run More at Once with 12 kW Running?
Yes. Higher capacity means more simultaneous loads. With 12 kW running you can power, for example:
- Home backup: fridge + freezer + broadband + lighting + TV + microwave + kettle (stagger heat loads).
- Site cabin: heaters + lights + sockets + kettle; split across the two 240V 32A outlets.
- Workshop: welder (180–200A) + lights + chargers; start compressor separately.
Use a proper transfer switch/ATS for premises. Consult a qualified electrician for connection and load balancing.
📊 Technical Specifications
| Maximum Watts | 12,800W |
| Running Watts | 12,000W |
| Fuel Type | Diesel |
| Weight | 170 kg |
| Fuel Tank | 35 L |
| Oil Capacity | 3.2 L |
| Starting System | Recoil / Key / Electric |
| Frequency | 50 Hz |
| Dimensions | 850 × 565 × 620 mm |
🧭 Why Choose a Diesel Generator?
- Fuel efficiency — lower consumption per kWh vs petrol.
- Durability — engines built for heavy duty cycles.
- Lower running cost — typically reduced cost per kWh.
- High torque — excels with motor/compressor loads.
🧠 Tips for Choosing the Right Generator
- Total your running watts for everything you’ll use together.
- Identify the largest starting surge (motors/AC/compressors) and keep headroom.
- Match outlets & amps — 32A sockets ≈ 7.4 kW each at 230/240V.
- Plan installation — use ATS/transfer switch and a qualified electrician.
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