How to make a violin at home. In this post, I would like to guide you through all the steps I followed to make a violin. Then I’ll share with you the reason I built this, my experiences, what Kept me moving forward when I lost confidence, and some of my mistakes which you are advised to avoid, and then I will answer some frequently asked questions related to violin. Let’s get started. This blog is all about renewable energy projects. However, every once in a while I do some hobby projects. This year I got a chance to join a violin class with my friends Sanal and Aswin. And guess what, we joined an institute. Check this on Amazon https://amzn.to/3ufFjI8 When I got this chance to hold these amazing musical instruments in my hands I felt a strange inspiration to make one of them. Even though I am not good at woodworking and acoustics I decided to give it a try. But I had no idea, where do I begin. You May Also Like: How to Make Wind Turbine Propeller The Inspiration for Making a Violin W...
Hey, in this post, I’m going to show you how to make a simple off-grid DIY solar power system and kickstart your off-grid living. Solar energy is amazing, and according to statistics, solar radiation that reaches the earth is enough to satisfy the energy needs of the planet. We have to develop better batteries and solar technologies to make this happen.
The reason why we are not giving much attention to solar energy is because of the easy availability of high energy-dense, easy to deal with fossil fuels. But they are a limited, exhaustible source of energy. And burning fossil fuel releases carbon dioxide into the atmosphere, which is said to be the main reason behind global warming and climate change.
You may also like: Grid-Tie Solar System can Drastically Lower Your Electricity Bill
We must go Green. It’s the need of the hour. New Physicist has a vision. 100% Renewably Powered Planet Earth. It’s just the beginning. I’m taking this chance to thank each and every inventors and engineer who contributed to the renewable energy industry. let’s get started with the project.
Off-Grid DIY Solar Power System
An off-grid solar power system is a stand-alone system that generates electricity from solar energy to satisfy all the energy needs of that property where it is installed. So this kind of system is most suitable for remote areas where grid connectivity is not available.
Sizing of the Off-grid diy solar power System
The first step to set up an off-grid solar system is to figure out your daily power consumption. I’m gonna make a diy solar inverter for my office.
My office has the following components.
a. 10W Led Bulb 1 Nos for 4 Hrs = 40 Wh
b. 50W Laptop 1 Nos for 3 Hrs = 150 Wh
c. 50W Fan 1 Nos for 1 Hrs = 50 Wh
Total power consumption per day = 240 Wh
Battery Sizing
Power Consuption Per day/Volatahe = 240Wh/12v = 20Ah
DoD of battery 50%
So Required Battery Size = 20Ah*2 = 40Ah
Solar Panel Sizing
Power to completely charge the Battery
40Ah*12= 480 W / 0.85(loss) = 560W = (550)
We need a 560W solar panel to completely charge the battery.
In India, we have total PSH peak solar hrs nearly 5.5
so, Required Panel Power = 550 / 5.5 = 100 W
Inverter Sizing Total load connected = 240 W
So any inverter rated more than that can be used. Here I chose a 400 VA Inverter
Components of an Off-grid DIY Solar Power System
There are four main components to make an off-grid solar power system. They are Solar panels, batteries, charge controllers, and inverters. And you need other components to connect these components together and tools to make that happen.
Solar panel 100 W
Silicon-based solar panels are the industry’s favorite. I bought 2 fifty watts solar panels from Amazon and it is manufactured by loom solar. This one is a monocrystalline solar panel. To know more about mono and polycrystalline solar panels read this post How Crystalline Silicon Solar Cells are Manufactured?
Charge controller 10A
Charge controllers are used to protecting the battery from getting overcharged or over-discharged. There are two types of charge controllers in the market. They are MPPT and PWM charge controllers. I bought a 10A PWM charge controller, for small systems like this it’s enough. But MPPT charge controllers are more efficient.
Battery 40Ah
The solar battery is where energy is stored for later use. the main disadvantage of solar energy is that it is intermittent. So obviously we need backup o support our energy needs at those time. I bought a 40Ah tubular battery.
Inverter 400VA
Most homes use alternating current (AC) energy, not DC, so the energy produced by your solar panels isn’t useful on its own. An off-grid solar inverter’s only purpose is to convert the DC output of the battery/solar panel to 230 V AC.
Other Components You need to make an Off-Grid Solar Power system.
10 AWG wire, isolators, or circuit breakers. Board for a panel, Switch boxes, GI pipe
Tools You need to DIY solar power System Welding machine, angle grinder, drilling machine, crimp tool. Other electrical tools
Step1: Fix Your Solar Panel Perfectly First
Sun has two movements in the sky. One is east to west daily movements. and the other is south to north seasonal movements. To get the maximum power out of the solar panel the angle of incidence of solar radiation on the solar panel must be 90 degrees. That’s why we use dual-axis tracking to move the solar panel automatically to face the sun. Here I’m making a single axis manual tracking framework to track suns seasonal movements.
Step 2: Connect Solar Panels in Parallel
I bought 2 50 watts Solar panels. Since I’m building a 12 V system iv to connect these panels in parallel so that I’ll get an output of 12v 5A maximum.
Step 3: Make Control Panel
A Control panel is a must. So that we can easily connect the components and manage the connections and avoid any failures. If there any fault we can easily understand if all the components are neatly connected.
Step 4: Connecting Components
Use isolators to separate individual components of an off-grid solar system. and you must be cautious about the wire gauge especially the wire from the solar panel to the control panel. There are websites you can easily figure out the option wire gauge by entering the total wire length and maximum current flow.
Step 5: Testing Project
When you turn the off-grid solar power system on, always turn the battery isolator ON first, then the solar panel. not vice versa. That’s it Our Solar Power system is working perfectly. The charge controller shows 21.5 V on a high-intensity sunny day.
Now is the time to turn on the entire system. Keep in mind that, always turn on the battery circuit breaker first. Then turn on the solar panel isolator. Then you can see in the charger controller display the symbol of solar panel, charge controller, which implies the solar panel is now charging our battery. Now you can turn on the inverter or just use DC loads.
This battery can be discharged up to 20Ah, which means it can power up to 20*12= 240W equipment for one hour or a 10W bulb for 24 hours. Cool. Enjoy your own off-grid system. If this DIY article is helpful consider sharing it with Thank you. your social media profiles and support my mission to build a better, sustainable tomorrow!
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