20KW Off Grid Solar Power System for School
Brand: Lersion
Product origin: China
Delivery time: 2-15 days
Supply capacity: 10000
10KW /15KW/20KW/25KW/30KW/40KW, customized is available
IGBT module inverter
long lifespan design
more stable, more safe, high quality
20KW Off Grid Solar System for High-end Villa
Lersion new energy is factory of solar inverter and battery (lithium and lead acid). Based in China, we have a closed partnership with world class PV manufacturer such as Longi, JA solar, Jinko to supply first tier PV module. Meanwhile with 12 years' experience in solar industry, we know more about the whole industry chain of solar system and can offer you high quality solar kits/parts at very competitive price, to optimize your solar system configuration and lower the first investment for your solar system as much as possible.
1 Electrical Load Reference List
| Electrical Appliance | Rated Power （W/pcs) | Quantity (pcs) | Working Hours | Total （W） |
| LED bulbs | 20 | 5 | 6 | 600 |
| AC(1p) | 750 | 6 | 10 | 45000 |
| Fan | 70 | 2 | 6 | 840 |
| TV | 150 | 1 | 4 | 600 |
| rice cooker | 800 | 1 | 1 | 800 |
| Computer | 200 | 1 | 4 | 800 |
| Washing machine | 230 | 1 | 1 | 230 |
| Refrigerator | 200 | 1 | 24 | 1500 |
| Microwave oven | 1000 | 1 | 0.5 | 500 |
| Water heater | 2000 | 1 | 0.5 | 1000 |
| Microwave oven | 1000 | 1 | 2 | 2000 |
| Fax | 150 | 1 | 1 | 150 |
| Printer | 30 | 1 | 1 | 30 |
| Total electricity consumption: | 54050 | |||
Note: above home loads for reference only , actual power consumption will be different according different family. it is flexible and advice to consider extra more configurations in case of future load increase.
2 Off Grid Solar System Configuration
| Items | GT20KW | GT30KW | GT40KW | Remark |
| solar panel | 18 pcs | 24 pcs | 30 pcs | 600W/6H |
| hybrid 3 phase inverter | 1 pcs | 1 pcs | 1 pcs | 192V/220V/360V/384V |
| Lithium battery | 7 pcs | 9 pcs | 11 pcs | 51.2V/200A |
| cable & accessory | optional | according actual need | ||
| solar bracket | optional | |||
| energy storage | 18pcs*600W*6H≈64.8KWH | 24pcs*600W*6H≈86.4KWH | 30pcs*600W*6H≈108KWH | |
Note: above configuration is reference only, the 20kw solar power system design will be depended on:
PV: local sunshine duration，power /pcs, efficiency
battery capacity: customer planning back-up demand
inverter: the maximum loads etc.
for more solar system configuration suggestion, pls contact our sales team by WhatsApp/email.
3 Introduction To System Composition:
Solar Panel
world-class technology
Brand: Longi /Jinko/JA Solar/Lersion
Efficiency : Up to 22.2%
Power:428W -690W
30 years life time (CE RoHs TUV SGS)
Anodized aluminium alloy frame tempering Strong anti-cracking
Terminal block：IP65 with MC4 connector
Efficiency performance :25 years 80 % 20 year 85% 10 years 90%
IGBT module Hybrid Inverter
Builted in MPPT,high efficiency 99.5%
America new gerneration DSP chip microprocess technology
LVD/HVD/Charging voltage adjutable, suitable for kinds of battery.
Battery overvoltage / low voltage, overload, short circuit, over temperature protection, etc;
high-definition color touch screen
Automatic AC charger and AC mains switcher, switch time ≤ 3ms.
Home energy storage battery
LiFePO4(wall mounted /racked /stacked optional)
Grade A lithium battery
Long cycle life >6000 cycles
High Efficiency & Fast Charging
Intelligent battery management system
Compatible with Various Inverters
Cable and accessory
Optional for buyer
25mm2*2M battery cable
25mm *20M 2)4mm2 PV cable 200M (black+ red)
1set MC4 Tools ,PV terminals and MC4
PV Bracket
Optional for buyer
Aluminum Alloy frame + Fasteners Material SUS304.
Slope Rooftop or Flat rooftop
30 Years Service Life. 15years warranty
Easy Installation
