Client: please give the price of 5kw.
I:? (I might grumble to myself: a 5 kW system? Is it grid-tied, off-grid, or hybrid? How much electricity is used during the day? How much at night? But I can’t ask these questions directly—otherwise the customer might walk away
Usually I will provide a simple quotation:
- 550w solar panels:10pcs
- 5kw inverter:1 pcs
- 10kwh lithium battery:1 pcs
- solar brackets and accessories: 1 set
- Total China EXW price is about $2000.
It can support to many low loads house. But for 10kw, 20kw or 100kw, Maybe I can’t do that. WHY?
| Appliance | Typical Power Range | Characteristics | Recommended Inverter Capacity |
| LED/CFL Light | 5–30W per bulb | Resistive / light capacitive | Small capacity, negligible |
| TV (LCD) | 80–200W | Sensitive electronic load | ≥500W |
| Desktop PC + Monitor | 200–400W | Sensitive to power quality | ≥1000W pure sine wave |
| Laptop | 50–150W | Electronic load | ≥500W |
| Refrigerator (Single Door) | 100–200W (Startup 600–800W) | Inductive load, high surge | ≥1000W |
| Refrigerator (Double Door) | 200–400W (Startup 800–1500W) | Inductive load | ≥1500W |
| Washing Machine | 300–500W (Startup >1000W) | Motor-driven load | ≥1500W |
| Air Conditioner (1 HP) | 750–1200W (Startup 3–4×) | Inductive load | ≥3000W |
| Air Conditioner (1.5 HP) | 1200–2000W (Startup 4–5×) | Inductive load | ≥5000W |
| Electric Fan | 50–120W | Inductive load | ≥500W |
| Water Pump (Household) | 200–800W (Startup 2–4×) | Inductive load | ≥2000W |
| Rice Cooker | 400–1000W | Resistive load | ≥1500W |
| Electric Kettle | 1000–2000W | Resistive load | ≥2500W |
| Microwave Oven | 800–2000W | Resistive + slight inductive | ≥2500W |
| Induction Cooker | 1500–2500W | Resistive + electronic | ≥3000W |
| Hair Dryer | 800–1500W | Resistive load | ≥2000W |
Inverter Selection Guidelines
1. Calculate Total Power:
Add up the rated power of all appliances that need to run simultaneously.
2. Consider Surge Power:
For inductive loads (air conditioners, refrigerators, pumps), the starting current is 2–6 times the rated power.
The inverter must be able to withstand this surge.
Post time: Aug-29-2025