Welcome back ka-Toolbox! In our video today, I will share with you the solar setup we made for my parents ’house. This setup has a total Energy Storage capacity of 1.8Kw-hrs per day. But it is upgradeable which can add up to 3.9KW-hrs of Energy Storage. That means when this setup is fully upgraded, It is capable of supplying energy to the home with a monthly energy consumption of 120KW-hrs. This setup is small, so only my father and I installed this. That’s the beauty of installing a Solar Power System. If the project is not urgent and not very big, even few manpower can do it. Just like in the experimental Solar Power Setup in the 8-part video series for our DIY Solar setup tutorial. If you haven't watched all the videos in our video tutorials, just look in our channel's Solar Playlist. Or click the link above. Here in this video, for the first time I will also show the shots of our Experimental Solar Power Setup, we used in our 8-part Solar video tutorial. And this is it.. It appears really a DIY and very experimental. I installed this Setup last year, December 28, 2019.
The time goes really fast and it will be one year this coming 28. The main purpose of our Experimental Setup is to get the most optimized setup to be able to prove the theories found in FB groups or forums and the personal theories as well, and above all my curiosities about solar. It will also be a guide for future Solar Setup Projects. I will post a video in the next upload about the result of our experiment in that Setup.
I'll show you there what the problems were with that setup. And what about the equipment that was replaced because we proved that the rumors were wrong. I will also show there which part became useless or others became purpose. And much more. But we just have a little preview here of that Experimental Solar Setup. This is the first Solar Panel we used there in the Experimental Setup, This is 150W Monocrystalline. The Solar Charge Controller we used is 40Amps MPPT . The Battery is this 12V, 100Ah Gel Type.
And the Power Inverter we used is this 12V, 1KW, Pure Sine Wave Inverter Again, we will upload the findings of that experiment next. So, let's go back to my parents' Solar Power Project. Our setup type is Off-grid Solar Power Setup or in Short -OFF-Grid, because there is always a brownout in our area and the Distribution Utility supply is always under-voltage. In the standard pure On-grid or Grid-tied Setup, you also have no power when there is a brownout in the Distribution Utility. Unless your setup is Hybrid. Unlike the Pure Off-grid setup, brownout or not, there is still power in your home because this setup has a battery backup. That's why the cost of Off-grid is higher and it takes longer to get ROI (Return of Investment) because the Solar battery is expensive. So, we first took the Power ratings of the Appliances they want to use within 24hrs.
The plan to connect loads to Solar Power is sectional because their kitchen loads are relatively large. Appliances were no longer included there except for four lights which is in scheduled use. And here are our listed loads. In the Living Room Area. The LED Bulbs consumes 48Watt-hours. Also in the Bedrooms. The Kitchen area consumes 18 Watt-hours of energy. And outside the house, the energy needed is 30 Watt-hours. The consumption of the Cellphone charger is 16 Watt-hours. The Electric fan has 450Watt-hours. The TV consumes 150Watt-hours. And the aquarium pump consumes 336 Watt-hours. Because of that, they already have a Total Energy Consumption of 1,186 Wh or let's round off for standard battery capacity, it is equal to 1200Wh So, I have computed the required Battery. To have more allowable capacity, I decided to do 24V System in their house.
So, we need to Series two 12V Batteries to be 24V. Now, to make our Gel Battery safer, we will use Depth of Discharge or DOD of 50%. Because of that, we will need at least two 100Ah, 12V Batteries. Now, what Solar Panel will we need to fully charge the two 100Ah batteries everyday? The purpose of the Panel is to harvest Solar Energy to replenish the lost Charge or Energy in the Battery, consumed by appliances. Because there is a total of 1200Wh of Energy they need. I considered the common assumption of sun hours in our area averaging 3.5hours per day. That means, in one day, only 3.5 hours is the total and safest expected time for the panel to harvest, due to various factors such as shading, rain, mist, Panel tilting and so on. So, I computed, that they need two 200W Panels in total of 400W Panels. They still have an allowance for the result of this computation, because their Panel harvest can be up to 1.6KW.
It can also be used for Printers, Wifi and other mama's devices. They work from home now so they have the printer and other equipment for school at home. Monocrystalline is the type of solar panel I chose because it has more advantage in the location of the house. Now, it's up to the Solar Charge Controller. The purpose of the Solar Charge Controller is to control
Power Output of Solar Panel to Battery. If the Power output of the Panel is not controlled, it will cause battery damage.
Since the Total Power of our Solar Panel is 400W, the 20A Controller can be used here. But I plan to upgrade their setup, so I immediately doubled the capacity to 40A. AND MPPT is the class we have chosen to optimize the harvest of our 400W Solar Panel. And now to the inverter. The job of the inverter is to turn 220V AC into 12 or 24V from the Battery to be used in our appliances.
We can see in our home appliances, 220Volts voltage ratings are the same as our Distribution Utility supplies such as Electric Cooperatives. Now, the total wattage possible to synchronize the function is only 147 Watts and only two are motorized here. The Electric Fan and the Aquarium Pump. So, that 300Watts Power inverter can handle that. But, again, because of the plan to upgrade this setup, it would be better for us to apply the allowance. So I chose 1000Watts or 1KW inverter. And it's also good because I've tested it in our almost 1 year Experimental Setup. And PSW or Pure Sine Wave is the inverter we need because we have motorized appliances the Electric Fan and Aquarium pump. So, the sizing and selection of materials are in order and complete. So, last November 17, we traveled to Davao City. It also takes almost 3 hours to travel to a Store in Davao city to buy the Materials. It is the only closest store to us, whose price is within the budget. Arriving there, we purchased the setup necessities.
Their 200W, Monocrystalline Solar Panels cost 4,000 each. We need two so there is a total of 8,000. The 40Amperes, MPPT Solar Charge Controller is 4,500. The 1,000Watts, 24V Power Inverter costs 6,000. We have also bought Protection systems such as Circuit Breaker and SPD, as well as the mounting parts. However, L-foot and Railing are not available but it's ok. There is another way to do it. And that's it, I thought that everything is pretty ok, but, the 100Ah battery is not available. Due to the difficulty of transportation to Davao City. We decided to just buy the higher capacity available to them, and that is the 150Ah. Quite heavy and also heavy in the pocket. 🙂 8,500 each so, total of 17,000. That is because it is difficult here in the province, far from sellers of parts with the right price. Plus make it even harder to get into areas where materials are available, because admission guidelines is changing due to the pandemic.
Meanwhile, the 400W Solar Panel will continue even if the Battery capacity increases. It's a bit difficult to fill-in but it's limited to DOD first. Next budget, we'll just add another Solar Panel. The client struggled a bit because each 150Ah is 2000 pesos more expensive than 100Ah. The next day, we gradually install the main components. Here in this portion they decided to install the Inverter, Controller as well as the protection systems. So we started drilling the mounting points. And we made a hole inside to make it look good in the front. It only took a while to connect the wires because it had to be bent and grouped to keep it clean looking.
We have already mounted the Inverter, Controller and System Protections. Next we did was the wiring in the ceiling. There is no problem with movement above because there is a large clearance above the ceiling. It's a bit puzzled because it's a bit difficult to find another connection because the other Junction box is buried in the bottom part of the beam. One of the difficulties here is the sectionalization of circuits because, those with heavy loads in the kitchen have not been included, in the Solar setup. Yet, it was also done. And it's time to drop the wires and conduits. In the back part we plan to put the 24V Battery Bank. So it is also perfect to include those wires in the wire that's from above the ceiling. Father made the Battery rack, for the Battery Bank.
And he also made the concrete base for the Battery rack, so that they will be safer in case there are vibrations or the worst of the earthquake. When it dried, we installed two 150Ah batteries and connected the wires and sensors. And finally, we have also applied two 200W Solar Panels each on top, using six fabricated Footing and Improvised Railing. We finished the installation last December 3rd. And that same day, their Solar Setup started operating. As of this time, the harvest is good and they can still add loads because they can only use half of the capacity. As a matter of fact, they harvested more than 2KW in two days. It's because sometimes, they use Solar during daytime while charging.
And now our monitoring continues and they also gradually learned to solar. YES! So, in summary, here is a list of the total amount spent on this setup. 8,000 pesos for the Solar Panel. 4,500 pesos for the Solar Charge Controller (SCC) 17,000 pesos for the Solar Battery. 6,000 pesos for the Power Inverter. 5,125 pesos for the Wires and Conduits and System Protection. 1,000 pesos for the Shipping charge. 1,001 pesos Aluminum and Mounting Parts. 650 pesos for the Welding Jobs of Footing and Fabricated Rack. Bossings, solar is expensive. Its components or materials are expensive. But you can’t pay for the comfort it provides when there is brownout for a few hours.
And this is the household appliance that reduces the expenses, especially in Electricity. Unlike the usual appliances that increases our expenses. Advice only for those who want to have their own setup. Whenever possible, use the right devices and size of components, To make the Solar Power Setup safe. and to optimize the capacity of each component of your system. And most importantly, the safe computation of each material. So that's the whole of this video. I hope I have added some knowledge to you. In this channel, we will discuss many more detailed topics about the field of Electrical. So subscribe, and please press the notification bell to be notified immediately of our updates.
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