Off-grid Victron Solution coupled with a Victron solar DC chargers and AC Wind turbine

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georges asked May 5, '20

Off-grid Victron Solution coupled with a Victron solar DC chargers and AC Wind turbine

Hello Everyone,

I'm designing for a client a completely remote solution/off-grid system with Victron technologies.

I'm feeding an average of 5kW AC load 24/7, 365 days a year, so I'm targeting both solar and wind to reduce my battery bank capacity since both sources are feasible to introduce in the project's area.

Accordingly, a battery bank with a Victron Quattro 8KVA DC coupled with several Victron smartsolar charge controllers in parallel and AC coupled at the AC output (load side) with two or one wind turbines having a total capacity of 6~7 kW max.

Can anyone help identify the best wind turbine system to couple them with this system? having an inverter that de-rates when the batteries are full (frequency controlled by the Quattro) and that operates efficiently at low wind speeds?

thank you in advance,

offgrid dc system

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Answer 1 · 2020-05-05T14:23:25Z

spudgun answered · May 05, 2020 at 02:23 PM

Hi Georges,

What country are you in? That will help with locally available solutions in relation to a wind turbine.

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georges commented · May 05, 2020 at 04:44 PM

Hello, thank you for your question, the project is in the Kingdom of Saudi Arabia

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georges commented · May 11, 2020 at 02:37 PM

Any ideas sir @Spudgun?

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Answer 2 · 2020-05-12T10:28:37Z

spudgun answered · May 12, 2020 at 10:28 AM

Hi Georges,

I was going to suggest SD-Wind based in Scotland but that is not very near Saudi Arabia. Although I know they have turbines installed in that region so it might be worth sending them an email. Hope that helps.

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georges commented · May 14, 2020 at 06:18 AM

Thank you, sir, we will contact them today, but will their grid-tied inverter function properly AC coupled with the Victron Quattro? do you know if they tested those systems with Victron and they had success stories till now? @Spudgun

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spudgun georges commented · May 14, 2020 at 08:10 AM

Hi Georges. Yes, the inverter can detect the Quattro frequency shift and reduce the output accordingly. The beauty about the SDWind turbine is that it can run fully unloaded without causing damage to the machine. It achieves this with its blade hinge design. However, there is a resistor dump load in the system to provide a load should it become unloaded.

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georges spudgun commented · May 15, 2020 at 06:51 AM

Okay Sir, thank you for your help, much appreciated!

I hope they reply to me soon, so we move forward, I will keep you in the loop.

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georges spudgun commented · May 31, 2020 at 06:06 AM

Good morning Sir @Spudgun, I tried to reach SD-Wind from 2 weeks now from their website but still no reply, do you someone's contact from SD-Wind that can help me?

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sean georges commented · May 31, 2020 at 04:06 PM

It's very likely, as are most of the UKs manufacturers, that SD are either closed or operating with very few staff due to the current situation.

I'm not sure what your budget is for this project but the installation of a 6kW model will leave very little change out of 30k UKP - that's for a UK installation.

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georges sean commented · Jun 07, 2020 at 03:11 PM

Good Morning Sean, thank you for the status update about the UK, I hope those tough times pass as quickly as possible with the minimum damage on all people.

For the cost of the wind turbine, the client insists on installing around 6kW although it's not economically very feasible in the intended location.

Do you have any other supplier that can offer me a turbine in this power range that can operate with Victron Technology?

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