Hi all

Have

1x deye 8kw inverter (wifi module not working)

2x dyness bx51100  bat, (upgrade later)

14x ecco 550w solar panels.

 

I would like to add a wind turbine to this system for assistance at night or when there is wind. Any recommendations or advice? Even installers appreciated. Can deye 8kw handle a turbine or what else do i need?

@guyi9000,

If you have roof space, I would recommend a microinverter, adds 2kW. Also connected to Aux port.

2 hours ago, guyi9000 said:

I would like to add a wind turbine to this system for assistance at night or when there is wind.

if you are in a residential area then avoid wind, you will have neighbors complaining. And regulation will prevent you from having an optimal wind system.

That said, those panels should be enough to keep your batteries full (load dependent) till close to sunset.

An extra battery or 2 will be much less hassle and probably easier to add than wind.

More panels and another battery far cheaper and better than wind. 

It can handle an input from a wind turbine, but then you'd have to probably give up one of the MPPT's, and that would be a waste. As others have said, more panels, say one more panel per string, and add another battery to help carry you through the night. Later maybe a generator for the AUX port. Looking at your system, I'd suggest the battery before anything else because you're probably getting your batteries charged quite early in the day. Would need to see your generation & load curves to know better.

On 2024/10/07 at 12:27 PM, guyi9000 said:

Hi all

Have

1x deye 8kw inverter (wifi module not working)

2x dyness bx51100  bat, (upgrade later)

14x ecco 550w solar panels.

 

I would like to add a wind turbine to this system for assistance at night or when there is wind. Any recommendations or advice? Even installers appreciated. Can deye 8kw handle a turbine or what else do i need?

Hi a wind turbine can work with these options.

Coupling a MPPT Based Wind turbine controller directly to your lithium batteries. We have controllers with our turbines that are compatible and safe to use on Lithium.

Down side of this would be that the Turbine would only work when the battery starts discharging when the battery is full the turbine wont work. 

Second option use a specific grid tied inverter between the wind turbine mppt controller then the controller will output 450VDC and the Deye Hybrid genport set the Deye genport to microinverter input @220VAC Deye inverter provides reference voltage and frequency for the grid tied inverter.  

This is a better option limitations are the turbine cannot exceed 50% of the capacity of the Hybrid inverter.

Turbine will supply power to loads before battery gets discharged if wind production is enough.

Ct Clamp location of the grid tied inverter is important to prevent export. 

Much more efficient method. 

The cost of turbines are not that high the ROI is directly linked the the average wind speed as an example our 1KW turbine produces its rated capacity of 1 KW @ 8 Meters per second wind speed or 28.8 KPH and will produce 1.2 KW from 9MS all the way to 25MS or 90 KPH on the lower end of the scale it will produce about 500 watt @6MS or 21.6 KPH wind speed. 

If the yearly average wind speed in your area is 6MS the turbine should theoretically produce 500 watt per hour on average however let's be conservative and say 400 watt per hour that means on average you would not use (working on a 6.2 Hour Day solar effective production average) 7.1 KWH Lithium storage and at the same time produce 9.6 KWH of Energy every day 365 days per year.

Or Let us assume you have 10 KWH battery storage and your base load is 350 Watt per hour at night and during low light conditions your turbine would sustain the load of 350 watt without discharging and have excess of 50 watt per hour for 24 hours. This is based on 6MS. 

Meaning you would not have consumed any power out of your battery and the battery would still be full when the Sun starts shining. 

So the value of the energy produced by the Turbine is not just energy produced but also reduction in cycles of the battery or reducing the battery size requirement and reducing the base load on a system. 

This can all be scaled up to match whatever your power requirement may be.

The Important factor here is that you need decent average wind speeds where you put the turbine. 

The turbine needs to be higher than any high structure around it in the predominating wind directions. 

Wind turbines are far less likely to be stolen or damaged. 

Solar panels are easy to steal easy to break and requires to be cleaned regularly. 

Wind turbines do need space on the ground however plants can still grow under them and animals can still roam under them the ground will not be completely lost. 

I would not mount turbines on Houses unless the roof that is being used is concrete or very strong and over an area where no people spend extended times. 

A small 2KW turbine with a blade Diameter of 4 Meters can generate up to 2.5 Tons of horizontal load at 90MS wind speeds so the pole or structure it is on needs to be strong enough to handle that kind of load.

Wind turbines just need yearly maintenance and servicing if parts wear out besides the service parts for turbines are very cheap. 

Potential life span of a turbine is also much longer than solar panels especially the ones we supply the variable pitch turbines reason is the variable pitch turbine can never over run or be exposed to excessive rotor speed so nothing can overheat or wear prematurely. 

Neodymium Magnets only lose a small fraction of their capacity every 100 Years the variable pitch turbines never rotate faster than needed and they never heat up so theoretically the turbine can last many years beyond what a solar panel can as long as you replace the wear and tear parts.

Preventative maintenance is key.

ROI of turbines with all included costs can be as high as 6 Years to as little as 1 and a half years really just depends on the yearly average wind speed these calculations are based on fully installed costs not like Solar companies like to do where they just calculate on the hardware cost but does not include the installation consumables and transport costs in their calculations.