GabrielSun
New Member
Hello guys, I'm a TOTAL newbe without any electronic knowledge.
I'm planning my first solar project and my goal was to reduce the power consumption using two 500W panels and a micro inverter to 'inject' the produced energy into the apartment and, eventually, into the grid - if not used. Then I had an opportunity to buy a set of six 550W panels with an excellent prices while a solar energy consultant company has closed business and I had them for cheap. In the meanwhile I bought a Hoymiles HMS-2000 with 4 mppt ports of 500W for an amazing price.
Now, my project has shifted from having 2 panels and 800/1000Wh to reduce my bill to having potentially a 3300W solar panels and a lot of extra power that I could generate but probably I will not consume while I have a base 300 W load with 3500 W consumption during intense hours of the day and peaks of 6000W in the summer with air conditioning.
Hence the idea to store extra energy to reach a near-zero energy consumption using the batteries during the night to cover base loads. I have also to specify that I've choose microinverters because during the day I will have some shading (in the winter time and in some hours during summer) so I want to optimize the PV having each panel connected to a single mppt. Also I prefer to use microinverter because my main switch is very far from the panels so the cable cost is more then panels itself!
So, now the dilemma: to implement a battery system that accumulate not used energy produced by my panels and so distribute my energy production in all the day, in your opinion, i should:
Solution 1 - Use a batch of panels as grid tie and another batch to power a battery that will be connected with another inverter to inject the battery energy during night time
Solution 2 - Use the microinverter that I've bought for a future project and switch to an off grid hybrid inverter
Solution 3 - Connect a 48V battery between the solar panel and the microinverter to use my battery during night time (I made a sketch, I'm sure that someone will be so nice to explain me why my idea doesn't work, I'm a total newbe and to validate it I should burn two or tree batteries and some inverters!
What do you think?
I'm planning my first solar project and my goal was to reduce the power consumption using two 500W panels and a micro inverter to 'inject' the produced energy into the apartment and, eventually, into the grid - if not used. Then I had an opportunity to buy a set of six 550W panels with an excellent prices while a solar energy consultant company has closed business and I had them for cheap. In the meanwhile I bought a Hoymiles HMS-2000 with 4 mppt ports of 500W for an amazing price.
Now, my project has shifted from having 2 panels and 800/1000Wh to reduce my bill to having potentially a 3300W solar panels and a lot of extra power that I could generate but probably I will not consume while I have a base 300 W load with 3500 W consumption during intense hours of the day and peaks of 6000W in the summer with air conditioning.
Hence the idea to store extra energy to reach a near-zero energy consumption using the batteries during the night to cover base loads. I have also to specify that I've choose microinverters because during the day I will have some shading (in the winter time and in some hours during summer) so I want to optimize the PV having each panel connected to a single mppt. Also I prefer to use microinverter because my main switch is very far from the panels so the cable cost is more then panels itself!
So, now the dilemma: to implement a battery system that accumulate not used energy produced by my panels and so distribute my energy production in all the day, in your opinion, i should:
Solution 1 - Use a batch of panels as grid tie and another batch to power a battery that will be connected with another inverter to inject the battery energy during night time
Solution 2 - Use the microinverter that I've bought for a future project and switch to an off grid hybrid inverter
Solution 3 - Connect a 48V battery between the solar panel and the microinverter to use my battery during night time (I made a sketch, I'm sure that someone will be so nice to explain me why my idea doesn't work, I'm a total newbe and to validate it I should burn two or tree batteries and some inverters!
What do you think?
