Battery Storage

[Scoobyscotlad]

Anybody successfully utilising your own renewable energy at low production times with your own battery storage?

 

[farmerfred86]

Yes... we installed 40kw in 2019 and its been working well. I based the budget on electric prices at that time and now prices are going through the roof its an even better return.
I used a company called Moixa which uses intelligent software so it does alot more than just provided electric when the sun goes down.
Now about to install a Tesla 13kw system in a domestic situation too.

 

[Exfarmer]

Yes... we installed 40kw in 2019 and its been working well. I based the budget on electric prices at that time and now prices are going through the roof its an even better return.
I used a company called Moixa which uses intelligent software so it does alot more than just provided electric when the sun goes down.
Now about to install a Tesla 13kw system in a domestic situation too.

Where the F*** did you find a Tesla battery, have been trying for ages

 

[rogeriko]

You dont need a Tesla. Use a Solis hybrid inverter and Pylontech batteries. They make up to 10kw output 3 phase inverters and add as many batteries as you want. £750 per 2.5kw storage.

 

[farmerfred86]

We used pylon tech originally for our 40kw system. It also allowed us to output a balanced 3 phase supply which suited the business needs. In the domestic situation the tesla is a better fit for the size of system and physical size. Were also adding a second inverter so the system can auto switch in the event of a power cut. (We haven't got the tesla battery yet... Ukraine situation could make it a much longer wait.)

 

[HatsOff]

Looking at Givenergy system for a domestic install... Quite a lot of different options and retrofitting to solar confuses things too. DC vs AC etc.

 

[Will0]

Yes... we installed 40kw in 2019 and its been working well. I based the budget on electric prices at that time and now prices are going through the roof its an even better return.

We did similar in 2020 with Tesla’s and solar. When doing the cost model, I did put in a figure for electricity inflation though, but thats been blown out the water to say the least.

 

[renewablejohn]

You dont need a Tesla. Use a Solis hybrid inverter and Pylontech batteries. They make up to 10kw output 3 phase inverters and add as many batteries as you want. £750 per 2.5kw storage.

Would it work with both a hydro and solar input or would I require two systems as the outputs are totally different. ie 700w on 24/7 and max 4kw solar for 10 hrs.

 

[Wisconsonian]

Two charge controllers can work together on the same battery bank, just like two solar strings.

A friend just replaced lead acid with two 12v 300 watt hour li ion. Retail cost US$3,600 for 7.2KWH. You can order them cheaper, but he wanted professional support.