3900 Watt DIY
SOLAR SYSTEM.
Approximate total cost: $8900.00 (02/01/2023)
Including 14kWh lithium battery
(16 X 3.2V 280Ah cells.)
I'm NOT using any brand names in any of my product descriptions, in other words I do NOT make $$$. If you need any help you can contact me by email or call and I will be happy to assist.
I'm a SUNNUT and I wish there was more of us - and my reason for doing!
Picture on left was taken at 6PM
March 16 and shade is just starting to effect .
WE ALL HATE TO LOSE MONEY ON SCAMS,
LOOK AT THIS FUNNY ONE, GO DOWN
Easily removable when hurricane is threatening. All made of weather resistant materials for years of service to come.
Each stand is made of all weather resistant materials and total price is about $125.00 including angle steel 1-1/2" x 1-1/2" 14 gauge for solar panel mounting.The stands are clamped on to standing seams steel roof. Protection boxes for battery and controller + box for sun tracker control unit = $40.00
Solar array with sun tracker system E-W - fixed facing S at 33 degrees.This image has 20 -195W panels and gives you an idea of the setup.Price for all panels $3800.00 apx.
and are spaced out to prevent shades.
This picture was taken at 10am and the array is producing around 2500W.
The tracking system with all hardware is roughly $150.00 + Small 10Watt solar panel 20Ah battery and charge controller around $130.00
The solar array, inverter, and battery capacity
holds the power.
Initially designed as an emergency backup system, it has now evolved. The system's performance is tracked via WIFI and Bluetooth.
On May 25, 2021, the 3500W off-grid all-in-one inverter was linked to the 110V sub-panel to provide uninterrupted power supply to house essentials. Unfortunately, the inverter ceased functioning after 3 years and 3 months, and the reason is unclear.
Following extensive product research, I ultimately selected a 48V 5000W 120 AC with a maximum DC input of 500 V dc.
Installed on Aug 6th 2024.
Although I was fond of another option, its display was non-adjustable and lacked brightness, in addition to being $100 more expensive than my chosen model.
I connected two 240V inverters with limiters on L1 and2, each with a capacity of 2000W. They are not connected to the grid and instead, any excess solar-generated power is stored in a 48V 280Ah14kWh battery bank. The inverters have a safety feature that shuts them down in case of grid failure. Additionally, a temperature-controlled fan is installed to remove hot air from the exhaust point of all inverters when the temperature exceeds 92 degrees. The cost of a 2000W grid-tied inverter is approximately $450.00.
The ECO WiFi timers are linked to two 2000 Watt inverters that have individual limiters on L1 and L2.
ECO 1 is set to provide around 1750W, while ECO 2 set to supply up to approximately 800W, depending on time of day and also available power from the battery bank, it's all about optimizing solar energy.
110V sub-panel connected to 110V 5000W inverter supplying power to some house lights and all essentials.
The price for sub-panels varies - I believe this one was around $250.00 + PRO installation.
Battery bank with 14kWh of power,
with BMS and active equalizer.
Battery storage is the key!!!!
The battery bank is build of 16 each 280Ah cells and controlled for safe operation by 16S 100A BMS with Bluetooth. For my extra protection I have also installed 16S active equalizer.
apx.: $2500.00 +
16S BMS 100A $110.00
16S Active equalizer $65.00
Battery bracket $20.00
Still trying to figure out if this was the right decision, mostly because of the low balancing current of only 1A, on the other hand - doesn't mater if top balanced.
I have set cell balance to 3.45V.
Beside that it's working great.
BMS Board 8S-20S 150A with 1A Balance current With CAN/RS485
The price is about $120.00
