Autonomous Photovoltaic Optimizations with Liquids OPALE

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by Remundo » 11/02/13, 08:27

Back to the OPALE "large roofs"

Installation Sycamoreen2 confirmed its leading position in kWh / kWp in the Auvergne region, and signs for the 2nd consecutive year a production higher than the average observed in Côte d'Azur.

Installation Sycamoreen1 achieves honorable results. See all our productions on the dedicated FAQ.

The OPALE Photovoltaic Garage will have completed his test year in April 2013.

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by Remundo » 02/05/13, 14:25

First feedback on the OPALE photovoltaic Carport

It is a small roof in a suburban environment. The location is not ideal because of the orientation and shading. But it allows interesting technical tests.

Target achieved: 5690 kWh for 5700 expected.

Performance per kWp of panels: 1003 kWh / kWp
Performance per inverter kWp: 1138 kWh / kWp

More information : Announcement from 01/05/2013
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by Remundo » 24/06/13, 11:09

Hello to Econologues,

Some good news in May 2013 Autonomous Photovoltaic Optimizations with Flowing Liquids (OPAL)

The 100 kWh threshold is crossed for the cumulative production of different OPALE sites currently in operation

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by Christophe » 24/06/13, 11:41

Hey Remundo, did you really need to wet your panels since the spring was over there? : Cheesy: :?: :|
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by Remundo » 24/06/13, 12:01

Some days it starts.

And the tanks are indeed full, the overflows have even flowed enough :P
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by Remundo » 19/08/13, 11:56

Hello to Econologues,

an interesting article about Sycamore OPAL :

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Source: Energeek
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by Remundo » 20/08/13, 22:37

Hello to Econologues,

Just to let you know that the above article is now available in a pdf 'clean' in the Sycomoreen PV FAQ (19/08/2013)

And if you are interested in the "guts" of SMA 3000TL inverters, a small video is available here (19/08/2013).

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by Remundo » 01/02/14, 11:41

The latest good news from mountain OPALs

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Sycomoran announcement of 26/01/2014
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by Remundo » 31/10/15, 10:42

Hello to Econologues,

News from Sycamore OPALS,

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Rather good!

More details here
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Re: Autonomous Photovoltaic Optimizations with OPALE Liquids




by BaudouinLabrique » 16/02/18, 12:53

Feedback from this OPALE system over 7 years?


At the time, I was interested in cooling the panels and I even discussed them on the forums (but not on this one that I discovered a short time ago).

Context (Belgium, 50km north of Maubeuge): since 2012, I have made my old home (> 50 years old) with positive energy (electricity, heating but also water, especially drinking).
Details about self-sufficiency

I have a photovoltaic tracker of 30 panels x 327Wp (9.810Wp) on 45m²

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I think I can cool them very well given the current equipment:

1 ° a 15.000 liter rainwater tank (I overproduce and even if it is very dry and long: I invented a system of water recovery from showers to feed the 3 toilets
2 ° a hydrophore group (660kWh) which flows at 4,7kg / cm² and therefore powerful enough to bring the water smoothly above the follower
3 ° the water is filtered to 5 microns (cascade of three washable filters: shirts of 50, 25 and 5 mucrons)
4 ° I already have a 1000 liter tank (PVC and armature) in recovery (60 €) to collect the water from the follower and slowly redirect it to the main tank
with a buried pipe (avoid water clogging and therefore overflows + cool it)
5 ° I have already bought enough to collect water from the follower (in addition to bringing additional rainwater when it rains

Material to acquire:

1) bring the water to the follower for 50m: buried pipe so that the starting temperature at 16 ° remains (tank buried in a ground which is always in the shade)
2) Armaflex type sheath intended for the pipe between its earth outlet and the ridge of the follower
3) Ramp (Socarex-type pipe recovered with perforated holes (surplus following the installation of horizontal geothermal collectors)
4) Velleman electronic radiator thermostat in kit (at 7 € !!!) whose sensor is placed at the bottom of the central panel and all connected to a solenoid valve which controls the water supply. I already installed this type of thermostat more than 5 years ago on my hydrophore group so that it stops automatically in the event of overload (set at 30 °) in the event of water damage.




Total budget (except 15.000 liter tank and hydrophore group) of equipment: less than 1500 €!
IF we count the tank and the group: 3.500 €, knowing that in addition we have free water and especially drinking water (reverse osmosis)! Just on the consumption water saved, for a household of two people, the system will fully amortize over less than 6 years for someone who has to invest everything.

Expected gain: 1500kWh / year (if I had to pay for electricity, this would count here in Belgium 375 € at a rate of 0,25 € / kWh)

Implementation: by my own means (except climb on the follower (7,5m high),
Knowing that it will be necessary in particular:
1 ° dig in the ground for about 50 m (about 50 cm)
2 ° remove the space between the follower panels (so that water flows everywhere and without loss)


NB I intend to do it according to my future needs:

1 ° if I equip my house with an electrolyzer / fuel cell pair (see topic The hydrogen house, because I will have to produce more electricity
2 ° at the latest when, in around 15 years, the decline in panel production will be felt (NB cooling of the panels also increases their lifespan)
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«There are those who see things as they are and wonder why. Me, I see them as they could be and I say to myself: why not! (Sir Bernard Shaw)
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