If it helps anyone, here are some basics that I've learned over time. This is a generalization because of course there are all sorts of special situations and real life results.
How is solar energy harnessed?
Sun-->Solar Panel-->Inverter-->Appliance
OR
Sun-->Solar Panel-->Battery-->Inverter-->Appliance
What's an inverter?
-Solar panels output energy in DC but appliances use AC
-Therefore, an inverter is needed to transform DC electricity into AC electricity
Why use a battery?
-Stores energy for later use (like when the sun is not shining!)
-Example, without a battery, a passing cloud can reduce the current and cause a brownout
-Use the panels to charge the battery to keep it full
-Connect appliances to the battery for consistent power (until it runs out!)
How much power do I need?
-Calculations are usually based on watt/hours
-Your 1500 watt heater or microwave will need 1500 watts
-Your 60 watt light bulb will need 60 watts
-Your AC might need 2000 wats
How much power can I produce?
-My panels are 300 watts and I have 20 of them, so I have a 6,000 watt hour system (aka 6kW system)
-I have an app that tells me the most energy I've harvested is about 5kW when the sun was hitting all of them at the right angle, for about two hour in mid summer (this was years ago when it was new and most efficient)
-Over the 8 o'clock hour, when it was foggy this morning, it generated 390 watts
Not sure this is taught in school (at least back in the day when I went), you have to pick it up through continuing education.
Might be worth looking for an 18v DC controller, rather than inverting to AC then converting back to DC.
Also, check around eBay/AliExpress. You might find a third party Ryobi adapter with a 12V or USB output. Then you'll be able to power all kinds of things from your solar setup.
If you are planning to go completely off grid you'll need a whole bunch of battery. No one is going to be able to guess what you need, use your electric bill to find avg kWh usage and go from there. For what you're trying to do you should probably hire someone to design and install a system instead of trying to DIY
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These are great deals! I bought the $123 kit from Northern tool a few months back for 199 minus their $20 off 200 coupon and I thought I was getting a good deal. I bought this simply to charge my Ryobi 18v batteries if we lose power, at least I will have my tools. Keep in mind that you have to have a battery hooked up to it for it to 'activate' or something. I hooked up a 12v 5.5ah electric scooter battery I had just to give it signal, and checked before sunlight and after with the inverter on, and the panel produced enough power for me to charge the 5.5ah battery and run the inverter which powers my ~50w (ish) ryobi charger. At $123 it's a solid deal. I will probably pick up two of the 215w panels for my deep freezer which only pulls 155w. At least I will be able to run it for 5hrs during the daytime 😆
These are great deals! I bought the $123 kit from Northern tool a few months back for 199 minus their $20 off 200 coupon and I thought I was getting a good deal. I bought this simply to charge my Ryobi 18v batteries if we lose power, at least I will have my tools. Keep in mind that you have to have a battery hooked up to it for it to 'activate' or something. I hooked up a 12v 5.5ah electric scooter battery I had just to give it signal, and checked before sunlight and after with the inverter on, and the panel produced enough power for me to charge the 5.5ah battery and run the inverter which powers my ~50w (ish) ryobi charger. At $123 it's a solid deal. I will probably pick up two of the 215w panels for my deep freezer which only pulls 155w. At least I will be able to run it for 5hrs during the daytime 😆
Might be worth looking for an 18v DC controller, rather than inverting to AC then converting back to DC.
Also, check around eBay/AliExpress. You might find a third party Ryobi adapter with a 12V or USB output. Then you'll be able to power all kinds of things from your solar setup.
Might be worth looking for an 18v DC controller, rather than inverting to AC then converting back to DC.
Also, check around eBay/AliExpress. You might find a third party Ryobi adapter with a 12V or USB output. Then you'll be able to power all kinds of things from your solar setup.
I get the smaller gadgets from Ali, solder all kinds of stuff together lol. I bought an adapter for 6-36vdc to dc with an EC5 from Ali (I am into R/C also) and I made adapters to hook up to my ryobi batteries. My kids' power wheels jeep runs on an 1/8 scale brushless motor from my RC truggy haha. I love gadgets and these solar panels are great intro prices. If you are getting 40 of them or so, I would definitely not recommend this route as there are cheaper and better options for large arrays. But now with the batteries coming in at under $400 for a 100ah, this is becoming more of an option for people to begin tinkering with this stuff. Will Prowse on YouTube has a plethora of info on solar and batteries, and he has a way of explaining it that is easy to understand.
how many of these do i need to power my three bedroom home? also do i need to buy batteries to store the power for night usage? what else do i need besides panels and batteries?
If you are planning to go completely off grid you'll need a whole bunch of battery. No one is going to be able to guess what you need, use your electric bill to find avg kWh usage and go from there. For what you're trying to do you should probably hire someone to design and install a system instead of trying to DIY
Im new to solar and want to take a step Into it. I want to power my 3d printer farm with it. Can anyone guide me in the right direction to what else I need? Thank you
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How is solar energy harnessed?
Sun-->Solar Panel-->Inverter-->Appliance
OR
Sun-->Solar Panel-->Battery-->Inverter-->Appliance
What's an inverter?
-Solar panels output energy in DC but appliances use AC
-Therefore, an inverter is needed to transform DC electricity into AC electricity
Why use a battery?
-Stores energy for later use (like when the sun is not shining!)
-Example, without a battery, a passing cloud can reduce the current and cause a brownout
-Use the panels to charge the battery to keep it full
-Connect appliances to the battery for consistent power (until it runs out!)
How much power do I need?
-Calculations are usually based on watt/hours
-Your 1500 watt heater or microwave will need 1500 watts
-Your 60 watt light bulb will need 60 watts
-Your AC might need 2000 wats
How much power can I produce?
-My panels are 300 watts and I have 20 of them, so I have a 6,000 watt hour system (aka 6kW system)
-I have an app that tells me the most energy I've harvested is about 5kW when the sun was hitting all of them at the right angle, for about two hour in mid summer (this was years ago when it was new and most efficient)
-Over the 8 o'clock hour, when it was foggy this morning, it generated 390 watts
Not sure this is taught in school (at least back in the day when I went), you have to pick it up through continuing education.
Also, check around eBay/AliExpress. You might find a third party Ryobi adapter with a 12V or USB output. Then you'll be able to power all kinds of things from your solar setup.
Sign up for a Slickdeals account to remove this ad.
Might be worth looking for an 18v DC controller, rather than inverting to AC then converting back to DC.
Also, check around eBay/AliExpress. You might find a third party Ryobi adapter with a 12V or USB output. Then you'll be able to power all kinds of things from your solar setup.
Also, check around eBay/AliExpress. You might find a third party Ryobi adapter with a 12V or USB output. Then you'll be able to power all kinds of things from your solar setup.
I get the smaller gadgets from Ali, solder all kinds of stuff together lol. I bought an adapter for 6-36vdc to dc with an EC5 from Ali (I am into R/C also) and I made adapters to hook up to my ryobi batteries. My kids' power wheels jeep runs on an 1/8 scale brushless motor from my RC truggy haha. I love gadgets and these solar panels are great intro prices. If you are getting 40 of them or so, I would definitely not recommend this route as there are cheaper and better options for large arrays. But now with the batteries coming in at under $400 for a 100ah, this is becoming more of an option for people to begin tinkering with this stuff. Will Prowse on YouTube has a plethora of info on solar and batteries, and he has a way of explaining it that is easy to understand.
Sign up for a Slickdeals account to remove this ad.
If you are planning to go completely off grid you'll need a whole bunch of battery. No one is going to be able to guess what you need, use your electric bill to find avg kWh usage and go from there. For what you're trying to do you should probably hire someone to design and install a system instead of trying to DIY