Backup generator for a Mardakan dacha: what kW you actually need
Peak summer and windy winter days bring 2-4 power cuts per month in Mardakan, sometimes 4-8 hours long. Pool pump, fridge and underfloor stop. What generator power you actually need and what it costs in 2026.
1. Power cuts — real frequency
2025 stats for Mardakan/Shuvelan: summer 3-5 cuts/month, avg 1-4 hours. Winter wind 2-3/month but longer (4-8 hours). 25-40 events per year total. Not frequent, but a 3-hour pool pump stop makes the water go cloudy.
2. How to size it
Real house load: lighting and sockets 1.5 kW, fridge + freezer 0.5 kW, pool pump 1.2 kW, boiler circulator 0.2 kW, 1 AC unit 1.8 kW. Total 5.2 kW + 30% start reserve = 6.8 kW. For 220 m² 7-8 kW is enough. Villa + spa + 2 ACs — 10-12 kW.
3. Fuel type
Petrol — up to 3-5 kW, price 750-1,600 AZN, but fuel lasts 2-3 hours. Diesel — 7-15 kW, 2,800-6,500 AZN, 8-14 hours per tank. Gas (LPG or mains) — 6-14 kW, 3,200-7,000 AZN, quieter and cleaner. Family choice — diesel or gas.
4. Auto-transfer switch (ATS)
Manual — you start it 5-15 min after the cut, you must be home. ATS starts the genset in 8-25 s, works while you're away. ATS price: 800-2,200 AZN. For Airbnb and year-round living — mandatory.
5. Install and service
Install area 2-4 m², ventilated, 3+ m from the house (noise, exhaust). Sound-insulated enclosure — 350-900 AZN. Fuel tank 100-200 l — 200-450 AZN. Annual service (oil, filter, test) — 200-400 AZN. Add 750-2,200 AZN to the genset price for install and prep.
Generator package by house type
| House type | Power | Fuel | Price (package) |
|---|---|---|---|
| Small dacha | 3-5 kW | petrol | 1,200–2,400 AZN |
| Family villa 200 m² | 7-8 kW | diesel | 4,000–7,500 AZN |
| Villa + pool + AC | 10-12 kW | diesel / gas | 6,500–11,000 AZN |
| Premium + spa | 15-20 kW | gas | 9,000–16,000 AZN |
A generator is not a spare — it is infrastructure. A 4-hour summer cut turns pool water cloudy (200-400 AZN of extra chemistry), 3 kg of meat in the fridge goes in the bin. The generator pays back in one season.
Five pre-purchase questions
- Year of manufacture and brand (Kohler, Honda, Kipor).
- Running hours — over 2,000 = overhaul due.
- ATS fitted? Otherwise +800-2,200 AZN.
- Condition of fuel tank and last refill/clean.
- Last service — oil, filters, report.
See also: year-round living, pool villa as investment, internet and fibre.
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