Solar Energy is most popular and clean renewable energy that anybody can harvest. In the recent years, there are many upgraded technologies arrived in the market. With that we can harvest more energy at a small places. We will be discussing the latest technologies available in the market (2021). However, we should also consider combining those technologies together to make a best efficient solar system with compatible setup. Because remember the proverb
A Razor Blade is sharp but can’t cut a tree. The Axe is strong but can’t cut the hair.
So let’s know about the latest technologies and try to choose a most efficient solar system. Keep in mind, combining right tools at the right place is always great. Let’s get started!
For a simple solar setup, we need the following things
Choosing a solar panel is very important for harvesting energy from the sun. There are different types of solar panels are available in the market. Of these, Mono Crystalline Solar panel is good in collecting more energy than traditional panels (Polycrystalline). You might be confused by its name that poly is more, but its not. The monocrystalline technology uses a single crystal on each cell that makes it highly efficient at a premium price.
Monocrystalline Solar Panel (Higher Efficiency):
- In Monocrystalline panels, each PV is made up of single silicon crystal. This panel looks black PV. (Good energy efficiency but high in cost, considerably 20% Higher).
Price History for LOOM SOLAR Panel 50 WATT/12 V MONO PERC
|Current Price||Rs. 2,850||October 19, 2021|
|Highest Price||Rs. 2,850||October 19, 2021|
|Lowest Price||Rs. 2,207||October 8, 2021|
Last price changes
|Rs. 2,850||October 19, 2021|
|Rs. 2,400||October 12, 2021|
|Rs. 2,207||October 8, 2021|
|Rs. 2,208||October 2, 2021|
Polycrystalline Solar Panel (Low Cost):
- Polycrystalline panels are made using multiple silicon crystals melded together. This panel looks blue hue in color. (Cost effective but Less Efficiency).
So when choosing a Solar Panel, Consider a monocrystalline panel for more efficiency. These panels even produce some energy even in cloudy days.
Solar Inverters are used to convert the stored DC Energy in the battery to supply the AC Devices like, Fan, TV and AC Lights. Inverters available in various KW that how much devices you can run at a time. You need to choose it as per your requirements. But there is also types of inverters available. We see only generally used inverters here.
The traditional inverter (UPS) is only used for Home UPS and not for solar (can be upgraded with additional controller, but not recommended).
The new inverters that comes with additionally work with Solar also, these are called Hybrid Solar Inverters. These inverters also has solar input, where you it can intelligently choose the best power source available. Also MPPT is the best technology to store max collected energy than PWM Based Controllers. So choosing an hybrid inverter will be best suitable if you are planning to upgrade it to solar in the future.
Charge Controllers (for DC Devices only):
Why do we need a charge controller, can’t the solar panels charge the battery directly?
Without a charge controller, the battery may charge at the day time but at night it reverses back to the panel and drain the battery. A Charge controller is an electronic device used to monitor and charge the battery and stops draining the battery during night time. It can also disconnect the output when the battery is low (this helps in preventing the battery from over discharge. Some batteries can’t be recharged again when it is completely drained. So a charge controller is important.
Charge controllers are suitable only for DC Devices only. The output devices should run on DC Only and the wiring made separately for that. As there is no DC to AC takes place it is considered more efficient. There are 2 types of charge controllers available PWM and MPPT. The MPPT Charge controllers are recommended for more efficiency.
PWM Charge Controllers (Less Efficiency):
MPPT Charge Controller: (Higher Efficiency)
Batteries are also an another important investment in solar setup. Traditional setup uses lead acid batteries that are more cost effective but Less Cycle Life, Heavy Weight, Maintenance needed and more importantly it takes too long to charge the battery and it is waste of collected energy from the solar panels. The current battery technology that is available in the market is Lithium Batteries. These batteries are less size, less weight, long cycle life and more importantly fast charging.
So when you are choosing a setup, you can consider the available best technologies available.
For Good Cycle Life Lithium Batteries with 2 Years Warranty visit Loom Solar. These batteries are equipped with Battery Management System and can work with old solar setup also.
Get DIY Lithium Phosphate (LiFePO4) Batteries from FactoryForward
Advantage of Lithium Batteries over Lead Acid Batteries:
- Faster Charging time than Lead Acid Batteries
- Zero maintenance
- Self-discharge rate – 5% per month @ 25˚C (Lead Acid Batteries needs to be charged at least once in a month to avoid degrading. But Lithium Batteries have longer shelf life)
- Higher AH Efficiency – 100%. (Lead Acid batteries performance gets reduced when battery is less than 50% of charge. But lithium batteries works sturdy until it lasts, the BMS disconnects the battery when it drains than its capacity)
The best solar considerations as per the current technologies are
- Mono Perc Solar Panels
- Solar Hybrid Inverters (that gives first preference to solar energy).
- MPPT Charge Controller (Maximum Power Point Tracking)
- Lithium Ion Batteries or Higher Life Cycle Lithium Ferro Phosphate (Lithium Phosphate, LiFePO4) Batteries
Note: We have explained the best available technologies in the market. But the technical specification needs to be considered before deciding as per the application. We will see some example setup in the upcoming blogs. Leave us in the comment if you need any queries and interesting topics.