Prospecting A Second Intake Source For My Off Grid Micro Hydro
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- Опубліковано 9 гру 2019
- for years now i have been monitoring flows and working out how to run a hydro system from two sources, I think i am finally ready to commit to a plan, This will double my output getting the turbine close to 1kw at full flow, that is the max the turbine is rated for. This project wont be getting started untill next winter but i just thought i would let the hydro viewers know there is more interesting content on the way.
Nice. Will be looking forward to those videos. It also would be Nice te maybe see a drone shot of your Property. So we van imagine a little better where everything is. Thanks!!
Totally agree
Keep the videos coming Kris, Be nice to have a new roundhouse update, show all the troll's that its not rotting away or falling down as they all predictied lol :)
They may say something like "See? There's moss growing on the outside of your house!" Yeah, well, that's a very thin layer. It's not rotting through the walls. Kris carefully picked the wood based on its durability and resistance to rot.
Gotta love off grid power. My entire home/shop run off of solar, and I know what you mean about having a system big enough to accommodate all of your tools. I build guitars/guitar parts, and have a full woodshop. My solar system is 17KW, with 2 tesla powerwalls, and it has never failed to keep the house and shop running. Good job on these videos.
Good to see increased resilience being built in. Definitely still following. Really like your communication and your logical reasoning (border, slope, energy (avoiding loss). Looking forward to seeing the future videos on this. Cheers
Well Mr Harbour your a wicked man LOL. I'm a woman and you have me watching all your videos. Even your hydro system videos. Which is something I never got into before. You even had me thinking about how you could get more power for your new work shop. Even thinking about you using your Micro hydro water wheel generator somewhere. You have so many possibilities there. I can't wait for next winter. ;)
Not only am I also a woman I'm 81 but still find building projects fascinating. I loved Grand Designs and my favourite was Ben Law's house of straw. He just popped up on tube yesterday. Also love Hickory Ridge Homestead in US and My Self Reliance and The Outsider both in Canada. But why is it self builders always have terrible weather?
Not 1 but 2 usable streams, so jealous. Your living every guys dream!
It’s not often you say something silly “let me know if you’re interested in seeing that” 😁
Exactly! Can't wait to see the second intake becoming a reality!
I was like why would he be even asking us. of course we want to see
Yea it was like asking a junkie if he wanted a fix?
@@rcs368 hahaha
Love to know more about turbines in streams. I live in South West Wales and gave streams. Unfortunately not as lucky with neighbour as even the stream that goes through my garden is regularly used to get rid of his slurry. Nobody does anything about it.
This looks pretty promising. Please build a small dam. I'd love to see something like this
By the way... If you add the second source, you would rename this project from micro hydro to at least mini hydro due to it's size and complexity
Dams disrupt natural habitat
@@stevencranston896 You're absolutely right for large dams but a modest weir 50cm or so tall would not present a problem IMO.
I think you are on the right track with the second intake, good luck
Just spent several days binging the old videos, and I'M PRETTY HAPPY WITH THEM SO FAR.
So very lucky that you have nice neighbors. I look forward to seeing you get this all set up as I have arrived recently and have watched some of your older videos. I would like to see it this time with the experience you have under your belt from the first one.
Happy Christmas Kris! One can never have too much available power. An ample supply of power is always a luxury & a great standby for working later into the day. Running larger machinery or charging a car does tend to consume loads of power! You'll figure it out, you're a pretty smart cookie! Kudos!
I'm thrilled your neighbour is a nice fella, bless him...... yet; if you can somehow make all of that happen on your land only, I'd feel easier. Could you clear and deepen a stretch of the stream from the boundary and build a dam of some sort on your land? It sounds like a great opportunity to garner more power though. Good luck bonny lad.
Yes should be interesting addition to your hydro system. Where the two pipes meet, you could have gates on each up-line, where you could equalize each of the flow rates, possibly electronically controlled centrally with a micro to automatically adjust to flow rates, also to shutdown one or other due conditions etc. This system could also adjust both flow rates in accordance with the Hydro load, limiting wear on the hydro itself. Has a lot of potential to keep your hobby and workshop/home very interesting. Keep up the great project videos, all very interesting and doing what many of us would have loved doing.
That would be ideal, I was thinking that there are going to be more problems than one would think. It would work if the water was before where the air vents.
William Glaser Yes the new intake would also have its own air outlet along the pipe, the same as the original.
Totally awesome a great idea Kris take that ideal and run with it , the sounds of the water flowing over the rocks sounds awesome !!! Thanks for sharein 😁 🌻
Kris - it's become clear - if you read all the comments, that there is a complete OBSESSION with building a dam, or dams - for various reasons, in the system!
I think it would be useful for you to make a short film explaining why you do - or do not - think this is a good idea......!
Hi Andy i was literally just thinking about that as i read the comments. i wont be building a dam. well not more than maybe 400mm or so just to funnel water to the intake. for some reason people seem to think having a dam creates water. people say things like "build a dam and get more flow" like the dam suddenly starts to make water. all a dam does is store water. and add head but you need to remember that any head gained means that the water level behind the dam is raised as well. flooding a massive area of my neighbours land and causing alot of environmental damage to surrounding trees and land for an extra 3m of head is not high on my to do list. As for the water storage side of dams, in order for them to have any significant storage they need to be HUGE my turbine will use 5lps from the source. thats 18,000 litres an hour. so i would need 18 cubic meters of water just to run the turbine for an hour. the turbine uses close to half a million litres a day. it would cost more than the entire system combined to build anything that would be worth doing and i would have to buy about 3 more fields and just flood them. Lets say i did it and built a 3m tall dam in the far corner of my woodland where there is no access at all. a 3m dam would give me 88w more power at the turbine. and maybe a few hours run time in storage. thats all it would do. All that work, cost, damage to land, all the maintenance it would need for 88w Thats why
Thanks for the comment. always enjoy seeing your comments.
@@KrisHarbour great - you've confirmed what I suspected was the case....!!
Cheers
Great way to answer that question Kris, I really do appreciate the fact that you have considered your environmental impact.
I find these micro-hydro videos electrifying. I know some of you will be shocked at how funny that was. They come to me quite easily though, they take very little energy. I might post a few puns on the next update, I have a battery of jokes. Cheers from Oklahoma!
Hey - you're a real bright spark.........!
Kris, I suggest you look at Mr Hydrohead's video series Micro Hydro Power in Colorado. I can see many similarities to your system. Of particular interest I noticed was his use of a Coanda screen at the intake as a means of overcoming penstock intake capacity limitations and fouling with air bubbles, algae, leaves and other debris. What a great system you've produced, not so much as pigs in pipes but more like rabbits from hats with regard to high system output from quite small available flows. Well done!
Yes it would be interesting to see you use the new water source!
You could put in a tank at your lower intake, pipe both streams in it and tap your penstock off it
Keep the videos coming Kris its nice to see your a man of many talants.
Really looking forward to see how this develops
Kris thanks for the video. I would love to see a rough map of the property with landmarks. Been following for a long while and I think it may help us audience to orientate ourselves better. Keep living that dream.
I think it's a great idea Kris. The only accommodation needed for joining the two penstocks would be a standpipe trimmed to the lower source elevation and located at or below their junction. It would prevent backflow to the lower elevation source which is really not that large of an issue to begin with.
In the States these are refereed to as 'run of the river' systems and utilize 'weirs', not 'dams'. The water is both sourced and returned to the same stream usually within a single property.
Using the wrong terminology here may raise concerns from the local environmental agencies.
Yes, I would enjoy watching that. You have got me quite interested with the hydro.
Some questions and propositions. Why don't you create some kind of a reservoir to join the streams? I see that you are already losing water from the first intake. If for example you create a reservoir out of metal barrel or a bigger tank (food graded plastic or metal), leaves can't block your intake and minimize the sand . Also you can have a valve and an over flow for controlling the flow (automated or remote controlled like the turbine valves). also you can filter the water for everyday use. I know that you have the spring (more videos from up there plz), but I remember correctly, the hydro intake is higher, so more pressure.
Another question. You aiming for higher voltage or amperage? Because you said something about second turbine. And I don't remember if the generator is AC or DC.
I love the work that you 've done. I hope someday to find a paradise like yours here in Greece, because you feed my dreams. Keep up the good work.
This will be a great project, both intakes I would think would have to be at the same height to avoid pressure in balance. Also the head of water behind any dam would change things. You mentioned one turbine is more efficient than two but having two who give you back up a d would solve imbalances of pressure. They could both be located together and use the same run off. It's a great project best wishes on what ever you do.
I agree to those that small intake pond where you can collect water over night and dump it through the system when you are using much and charging car. It is very good and cheap battery for you system.
Any project on hydro power would be worth watching. Your proposal sounds like the most practical way of doing it. I initially thought that you were going to put in a second turbine and was wondering if you were going to need to use step up and step down transformers to avoid transmission losses. However using a single turbine reduces complexity. It is a trade off between complexity/maintenance and redundancy. Maybe you need to keep some critical spares for your turbine so you are not out of power for a week whilst waiting for replacements.
Absolutely lovely water, keep it up.
Happy to help
I absolutely love this idea
Let's do this. :D. :pop:
Would love to see another intake or another turbine going. Would be mega awesome.
yup! would love to see it, would love to see everything you do on your land :D
Sounds great 👍 will look forward to seeing your informative content.
I would love to see a 2nd intake series. I think it's a great idea. I wonder if your existing penstock is large enough after the join to have full flow from both intakes. I would also like to see you increase the size of the intake on the 1st system, as it does seem a bit small for full flow situations.
Cool, you took my (or our) advice on redundancy. It might be critical in the future - if one of the streams dries up, the other one might be still flowing. I still recommend a backup turbine, so in case one fails, you can quickly commission the other one. Then again, I haven't finished watching this video yet.
Yes please would love to see it develop
I'm excited at the prospect of you perhaps getting an electric vehicle - I had thought before that you could use one as a second battery bank in a vehicle-2-(off)grid system for when you need more peak power!
Love the hydro, would love to do something similar one day! That would be great another input!
Hi Kris, yep I'd love to watch the new turbine vids, I take it you will "Y" not "T" the new water pipe into the pipe you already have !! Nice one mate. Seeya Rob
yeah, i will most likely have to make a custom fitting the has a very small angel to let the water combine slowly
If you put a ball valve on both intakes just before they join you can be sure to keep the flow even
Yep would love to see more I have been looking in to adding hydro for some time. Being mid Wales got nothing but rain at the moment. And wind 😂
Definitely keen to see that project.
high pressure in a pipe can be used to draw the low pressure into a pipe with the addition of an injection tee thus equalizing the pressure same principle as a spray gun
Or even just add a vent where the two mix to prevent backwashing - a tall vertical pipe section at the T or Y junction. It's a lot easier than measuring pressure and hoping it never changes.
you are right, but that would be a major loss of energy in the system. having them both equal will be far more efficient
@@KrisHarbour Once they have passed the sealed injection tee they will be high pressure the lower pressure water is sucked into and trough the injection tee. In your situation if the lower pressure water being introduced from the top of the tee drys up because of the tee the high pressure will not back feed just suck air until the water is restored
@@Johnkels100 Im quite sure that isnt right, both intakes will join at about the point that they have 20psi the final 30m of pipe will equate to about 5 psi. if one pipe was to drain the other would push the water back up the pipe to equalise the pressure. what your saying would be true if the end of the pipe was just open and blasting every bit of water there was out of it then it might cause suction, but it isnt the nozzles only let out a fraction of the water available (so the water moves slowly and does not lose all its energy in friction) because of this that water would carry on to the turbine but it would also be pushed up hill to the other intake. i wll do some test soon and we can see what happens.
I would change the design of the intakes and use a dam and use all available water. At the point where you connect both pipes of both intakes I would add a old water heater or similar, which can sustain the pressure. This way the water has time to mix and loose the turbulences.
When you keep some air at the top of the pressure vessel it can also help to prevent water hammers in your system on rapidly changing loads.
how about filtering of like leaves and stuff like that though? and i'd be interested in the costs, if it would be really worth it
@@MrTurbo_ actually small stuff is more of an issue. So sediment will wear down your turbine and your nozzles. You can filter with such a tank, you need to make a spin inside the tank from the inlets and any small sand will collect in the center of the tank at the bottom. If you make the outlet near the top, you can avoid sucking any debris in.
Sure, the tank need to be large, to get the filtering going depending on your flow rate.
Ideally the hydrocyclone should be conical but a round tank works also okay.
You need to have a sludge outlet at the bottom with enough diameter to remove any debris which might pass your filters before.
A simple mesh filter or a cotton filter should work great on avoiding leaves, when it's at the rim of the dam at the overflow port it should self clean when there's excessive overflow.
@Ruben Kelevra the outlet being at a higher point will indeed solve most problems with leaves, and the sediment is currently not being filtered and i think it will probably be cheaper to not filter and just upgrade the turbine whenever the old one wears out, also my point of added costs, time and effort in comparison of the actual total increased power output remains, after all Kris is on a thigh budget, he's not the french ministry of energy that just puts dams everywhere because of the fun of it
@@MrTurbo_ well, if you think of 2000 £ of pipe, 20 £ at the scrapyard for an old water tank shouldn't hurt and they are usually rated for 8 bar. Sure you need larger holes in them, but this is just a bit work.
A dam isn't that expensive, too, you just need two rows of wood planks, buried deep in both sides and the bottom and some tar to seal them. Shouldn't cost a fortune either.
A filter on the intake can be a cotton cloth over some planks, on a frame with the pipe on the bottom - mounted at the rim of the dam. If it's blocked the dam will overflow and clean the filter again.
To get the dam more flood prove you probably want to put stones on both ends to get some weight to it.
I've built dozens of dams that way in my youth, some probably still exist today 😙🎶
@@MrTurbo_ turbine wheels are kind of expensive to replace each year or two, and the faster the creek flows the more sediment you get into your intake. So when he's trippling the input he's most likely more than trippling the wear on the components without a filter. That's why I recommended to slow down the water in front of the intake, with a dam and get rid of the rest with a hydrocyclone.
Am eager to see that,it will be interesting Kris
How about you have a combiner tank the start a penstock from there,it will solve the issue of pressure differences
i guess Kris is also awared of bringing the river's together, like mentioned, because of the Risk of HIGHWATER. the existing stream is actually runing Next zu Kris' Roundhouse, so be careful Fellows with this kind of offers. especially in the Winterperiod
Kris, Just a thought. Might be a good idea to get your agreement with your neighbor in writing. He might sell his property 5 years down the line and you could end up with a new one who is not as keen on the project. At that time it's good to have it on a piece of paper.
Im more of a hand shake and keep my word person than a get it in writing person. And so is he. Things change, they always will i have no reason to try and stop change. i am confident in my ability to adapt to anything that comes my way and at no point would that involve needing to get stuff like that in writing. Even if i had it in writing i would not go via a solicitor to enforce it.
I think its a great idea, but I wish I didn't have to wait to see the outcome...im sure you feel the same. thx
Just sent you a tenner to help fund the Project. love the vids and have a great Christmas.
Looking forward to the project 👍
Indeed we would like to see that.
A Check Valve on the lower intake would prevent backflow and when the demand for flow overcame the upper intake it would un-check the valve and provide more flow.
Or you could pipe the flow of the new stream into the upstream of the intake of the current stream if you dont need a bigger intake.
Looking foreword to the new hydro series... adding a second water supply!
Definitely interested in seeing this progress!
Kris, I think you are not going to be able to join the 2 pipes together unless the start height is the same. What you could do is run both to the same generating shed, and use each to initially run the same turbine, and in time build a 2nd shed with a 2nd turbine creating a redundant system so that you can take one system offline for maintenance while still generating power from the other.
oh yes please go for it give it your best shot to generate more power :-)
I'm interested in anything that you do. Thanks for sharing.
I look forward to the project
It seems to me it'd be easier and cheaper to run a power cord off a second turbine than dig a long diversion pipe from the new stream and all the fussing with equalizing pressures. The distance isnt really a factor either - step up the three phase voltage at the orign then step it back down at your power shed and because it's a higher voltage you can use a smaller and less expensive cable. Then there's the redundancy factor - if you have two turbines going and one goes down for preventative maintenance or repair then you still have power being supplied to the power shed.
❤️ from New Zealand🙈🙈
I hope you will improve the second intake with all the knowledge you have from the first one.
go for it, will be plenty interesting. good luck.
with a second turbine you have more work and higher cost of course, but you win a redundant system. this can be helpfull in case of maintenance and important in case of problems. to send the electricity over 200+ meter use a thick cable and there will be no problem
This is clearly a cost/benefit situation. It depends on your mindset. How much does it actually matter if the system goes down versus masses more work and cost?!
If you're living this lifestyle is anything actually 'mission critical' if you run short of power.....
The pressure is determined by the head pick up so you want them at exactly the same height, where you connect them together is not relevant to balancing the pressure. You might have to rent a theodolite and some survey tools.
You could use a long hose as a water level to ensure that both intakes are at the same height.
I enjoy all of your videos, you make it and i will watch it. Would love for you to be able to make and sell stuff from home. (more content for us lol)
definitely interested!
Wow good ideas!!! I get crazy. Two things: would you be able to build a small dam at the second intake as it is quite deep? That would make you gain intake altitude but also filter out the stream variations and give you an extra little push while there is no more rain. Second the tesla cybertruck is the right vehicle for you mostly for the 220v outlets :p i know its expensive but as a 100% renewable youtuber and beeing youtube Elons first channel for advertising you maybe find a way (for ex tesla referral code) to get a cybertruck. Dont have a specific idea but maybe other followers get one. Cheers and keep up the amazing work
Push? His turbine works with pressure not with intake flow speed 😂
The question is, would he be seen dead in a vehicle which looks like a reject from a low budget 'distopian future' movie.....!!??
I understand about your elevation.... I wonder what the depth of your current stream is vs the prospected one. If the prospected one is above your current stream and that the water goes to the same place, It might be back breaking work, Just cut in a channel to your current stream line it with some rocks and you should be set. Even if it is a foot lower you can calculate how much it would need to raise the water to meet the current one with out flooding an entire area. The only changes would be to your jet size.
Get it done 💪🏽👍🏼👍🏼
As Tim Allen would say "More Power"!
It always take time and money . And some time to prep and clean out the woods some what before it happens and having a house and land there is all ways something to be done .
Would love to that!!
Indeed let’s see it
All I could think of is if I did the exact same stompin' about in the woods and streams in my area, I'd have poison oak for weeks and weeks.
Awesome! I'll happily come and lend a hand pulling pipe if you need it :)
I would love to see another hydro setup!!!
Yes please kris would love tho see this. Have you thought about building a head race I think its called, bit like a small damn, like they used on watermills to have higher volume of water moving at increased speed. this would mean a pond type structure to hold a volume of water, which you can control when you need more power. Would depend on how your land sits and if you have the suitable area for the pond and control overflow you'd need to avoid flooding. would be a BIG project maybe something for the future ?
Yeah. More hydro videos. Yes please.
Hi Kris, that looks a good project. Could you mitigate the risk of balancing the pressure at the coupling point by varying the pipe diameter and adding a valve?
If your looking for an electric vehicle, check out the Outlander. If you installed a bi directional vehicle to home system, you’d have an extra 12kWh of battery storage.
Interested. Especially for another style of intake.
Very interesting
as you mentioned at 4:08 just make sure the intakes are at the same elevation, otherwise the higher one will only start pushing water out the lower inlet. I am sure you have worked it all out but adding a second inlet to the same turbine will only be beneficial if the current input is not supplying up to the capacity of the turbine (ie the water level is somewhere between the inlet and turbine). I just want to make sure you get everything right so you are not wasting time. to a certain extent adding more water won't do anything since it will be limited by the turbine jets max flow.
edit: oh I should have watched the whole video first but looks like you got it figured out
Please help me try to understand - why would anyone ever comment on anything EVER without watching the whole thing???!!!
You literally don't know what you are commenting on.........
Also, I have to say that parts of your comment came over as patronising and arrogant - though hopefully not intentionally(!) because you appear not to know the history of the channel. For all you know, Kris could be considerably more knowledgeable than you about hydro.....??
This could simply be the effect of written, rather than spoken words coming over differently, but...
@@andymccabe6712 so that by the end of the video I don't forget what I was going to say
Use several large RAM pumps to get the water up where you need it.
Micro hydro projects involve changing lands ecology for relatively trivial amounts of power. It may be done considerately but pay some thoughts to the ecological roles which the only steady stream on the land has developed, and how you intend the ecology to change.
I would say that this type of system has an absolutely minimal effect on the local ecology. It takes only a relatively small percentage of the water out of the stream, and returns it lower down the flow.
This will mimic natural flow variations.....
Also, bear in mind this is exactly the kind of electricity generation which we are told will help to 'save the planet' - you can't have it both ways......!
@@andymccabe6712 Depends on the details of the stream and the system. The remaining part of the stream could be completely dried up during drier spells/seasons, this would be a barrier to the wildlife which populates the watercourse, potentially obstructing reproductive cycles which can extend from the source to the sea.
This is not the kind of electricity generation which concerned engineers generally advise to help stop the incredible environmental and climatic disruption of our times. Its very clear that technically we should connect to large scale generators which are much more efficient with resources than micro projects, except solar to a degree it can be sited quite benignly. If everyone tried to power their houses and factories from micro hydro projects... well, we just couldnt get close, there are no where near enough wild water courses to go around. Theyre really pretty precious in the UK.
I think you could also do very well with a larger (read: longer) water intake setup in your existing stream...Looks to me many liters a second escape the dance because the intake is rather small... Maybe do a stainless steel welding job again on that end of the system??
Maybe he doesnt want to dry the stream out
He needs the water flowing over to flush debris off the mesh of the intake to keep it clear
If you don't want to dam a stream to build head, perhaps you can take a tall tank and transfer water into a tank to build head for your generator?
Im interested in seeing that
🌈❤️💪👍build it. Good idea
fire it up and lets get it started
Couple of questions more out of curiousness vs knowledge (of which I have none ) :
Would you have to change the pipe going from your turbine to the point where the two intakes join (Make it fatter)?
Could you use some form of electronic pressure regulator to even the pressure coming from both intakes?
Super interesting stuff! Look forward to the future videos! Keep up the good work! :)
go for it!
Would it be possible for a birds eye view of your land in one of your videos. Would like to get a scale of how all your different projects are to each other don't really get that from the videos.
Hi Kris, would love to see a video about One Planet Development or how to get started doing something similar to what you're doing. Thanks
Can’t wait! 👍🏼
English forests look like they came straight from a horror movie, never seen anything similar outside the UK.
Ireland has very similar forestry
Ireland is in the uk
Ireland is not in the UK ?😐
Kiara FreemanNash provocations are English🙄
People who say island is in the UK are wrong we are in the British isles but we are two separate country's 😊
The height of the intake for both sources must be the same to be able to join them without creating a back flow in the pipe to the lower source. Sorry, but that's physics for you.
In addition, increasing the speed of your generator will cause the efficiency to decrease. There is an optimum speed for your pelton wheel which is roughly 1/2 the speed of the water hitting it. At faster speeds, less water energy is transferred to the wheel and the rest is wasted.
For a first go, consider joining the source pipes and putting valves upstream of the connection point. Then operate with only one valve open at a time. This will allow you to run from the larger stream when water on the smaller stream is too low. 100% hydro availability is a step in the right direction. Capturing what you can produce above household needs is the next step.
Think about adding more batteries and running the hydro full time to capture everything possible. This may require a way to charge/discharge separate battery banks (one for house, one for shop) from the hydro plant, or for swapping out individual batteries once charged. You'll be able to fire up the workshop when excess power has charged enough 'overflow battery' to support the tool use.
In the end, if you want a full time doubling of average power generated, you'll likely need a duplicate stand alone hydro generator system with more batteries.
If you get more flow it might make sense to 1-phase AC instead of 3 phase and use it directly, if you have a load which you can adjust as ballast, like a hot water tank for heating and hot water generation. This surely only make sense, if your peak usage is below the maximum output.
The DC side of your system might be used for lights and other devices which just use DC. You can start the battery charging, depending on the load on the AC-side to balance it further.
I don't think his alternator is wired with a neutral coming from it making it difficult to use individual phases. Makes more sense to turn it all into DC, storing excess in the batteries. You could run DC devices off those and invert for AC appliances. I think Maximus Ironthumper uses a site 110v transformer as a ballast for his excess solar to run it at a lower current, that would be a good option as a ballast load when the batteries are fully charged. The MPPT controller he has should have a ballast load option so the batteries aren't cycled too much. Kris said a while ago he didn't want to run a dump load, I'm not sure how much additional wear that puts on the bearings free-spinning without load compared to always being loaded though.
@@benlee4940 he would need a different generator for single phase anyway, since it would unevenly run if you "just" use one phase.
Also he need a generator with a shunt or auxiliary winding to do the necessary voltage regulation.
Since he's already using multiple nozzles, he could modulate flow by turning individual nozzles on and off, based on the RPM, since this need also be constant 50 Hz to use the AC directly.
Turning AC into DC, charging a battery and turning it than back into AC when you need it is quite inefficient, but necessary if you have not enough flow rate or head to cover peaks.
Since he want to significantly increase the flow rate and also add additional load - an electric car - it's not viable to just plug everything in as you need it. The batterypack of all electric cars are significantly larger than his battery for the system.
You need to regulate the loads therefore anyway somewhat intelligently.
If he gets for example 3 kW mechanical output he can charge the electric car directly (most electric cars accept slightly above 1 kW as minimum input) from the AC from the turbine, when there's low system load. I doubt that he can get enough AC power with the current system losses from the inverter without draining the battery.