Make electricity and heat with one device: hybrid solar technology technology device

Make electricity and heat with one device: hybrid solar technology technology device



I made this animation showing how Naked Energy’s ( ) hybrid solar technology works. READ BELOW in the description for answers to frequently asked questions.

Here’s a note from Nicholas Simmons, co-founder of Naked Energy:
“Thank you everyone for your comments – it’s great to see so much interest (and an abundance of healthy scepticism!). Just to clarify that heat is really important – especially in the context of generating sustainable energy that can help mitigate climate change. Also we know that PV cells have a temperature coefficient (-0.32%/K with the PERC cells we are using) that reduces their efficiency as they get hotter. Virtu is aimed at the global imperative of decarbonising heat and the electric output is a bonus, piggy-backing off a high efficiency evacuated tube solar thermal collector. For statistics on heat usage globally please see – and for commercial / serious questions about VirtuPVT or VirtuHOT please refer to www.nakedenergy.co.u­k ”

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Regarding PV Cell Efficiency at High Temperatures, Nicholas Simmons from Naked Energy has this to say: “PV cells regularly get to very high temperatures. If you return to your car on a hot summers day you know how hot it can be. A conventional PV module traps the cells behind glass and lets them bake in the sun. When a solar panel is made the temperatures used in the lamination process go up to something like 150C. As mentioned the efficiency of a solar cell drops off as temperature rises – this is known as the temperature coefficient and is published on the data sheets that go with PV modules. A conventional solar module has no way of losing heat other than through convection, but at the height of summer with no breeze and high ambient temperatures there is very little cooling going on. There is a lot of academic research out there discussing this. The virtuPVT heat exchanger as described in the video is constantly taking heat away to be used for other heating / hot water / process heat. Consequently a virtuPVT collector can actually be cooler than a normal PV module under the same circumstances.

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Make electricity and heat with one device: hybrid solar technology

Make electricity and heat with one device: hybrid solar technology

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Make electricity and heat with one device: hybrid solar technology
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37 thoughts on “Make electricity and heat with one device: hybrid solar technology technology device”

  1. жаль нет технических данных , сравнения их технологии с раздельным (классическим методом) получением электричества и тепла /PV модули + вакуумные трубки/

  2. they say heat exchanger will take away heat from pv modules… but what if there is no need for hot water? you would need some kind of cooling unit that will cool the water if there is no hot water consumption…

  3. concept is very good. the important now is the market price, specialy the price/advantage ratio verssu all other systems. if price will be cheap it can be a sucess, as an architect I would start using this in my projects if the price is done correctly.

  4. but the efficiency of the panels doesn't be affected by the extremely high temperature inside capsules? almost all electrical components works better in low temperatures…

    Ah, ok! i just found your comment about water cooled system in the cells. probably the water circulating in cells could maintain cells under the range of work temperature, right? great!

  5. Interesting idea, the advantages are combined electricity and heat generation, thus saving roof space, and the ability to position the tubes at an angle unrelated to roof pitch.

    Disadvantages would include [much] higher manufacturing cost than PVs, higher cell temperature (and hence lower PV output) on days of low hot water usage (which results in higher water temps), greater complexity of installation due to the number of electrical connections, greater chance of electrical failure for the same reason.

    There have been one or two cylindrical PV systems over the years, such as the Solyndra system, they have all gone under due to the higher cost – if you can't compete with low cost PVs combined with heat pumps, then you are not going to get much market share. The only manufacturer I know of still making these things is tubesolar.de

    I guess time will tell, but it's pretty hard to compete with the economics of standard large format PV panels, with their simple racking installation and connection systems.

  6. I'm a noob and will admit so. The product is very interesting. My question. Living in a northern climate and snow build up ,can or doesn't the tube which creates heat melt the snow?. We can get several feet in one storm.

  7. The back reflectors are a brilliant idea. The only thing about the video that was confusing was the area about how it was cooled. Had to read the comments to get the answers though.

  8. Wow this video literally gave me goosebumps! I am really glad to see this technology becoming available. It really looks like it has amazing features!

  9. Operating at 60c during summer seems quite a bit optimistic. I mean if you optimise the setup for around 60c in the summer then the water will drop in temperature quite a bit for the rest of the year making it hard to use as you would either need massive volume or additional heating. Also while the PV panels efficiency wont drop terribly it will be overall less than a regular open air panel. I am not quite sure there will be a space saving compared to a properly densly packed solar thermal+ PV. What is the price point of this product? As a two in one solution it has some potential at the right price point. Also Can it beat just a whole bunch of PV panels that are used for water heating too in terms of price and space saving?

  10. Now I see this as a product already I’m thinking, why are people not doing this already. The fact they are singular units makes installation seem a lot easier and then the liquid cooling effect on the solar panels as using that heat to make hot water.
    I’m 🤦‍♂️ ing right now. It seems so obvious
    👍🏼

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