On a field next to his greenhouse , Dutch Freesia grower Pip Tesselaar has instal the largest solar caloric system of the Netherlands by far , because before him there were only some small companies that had no more than 800 meters of solar panels on their roof . 9300 straightforward meter of solar panels were invest at Tesselaar Freesia on a surface area of a trivial over one hectare . It is first clip the induction is applied on an region of this scale of measurement which show to be quite ambitious for both the cultivator and the installers from G2Energy .
What happens is actually very simple-minded . You pump H2O through the tubes while the Lord’s Day - that shines on them - generates the heat . This heating can be used to , for instance , heat up the greenhouse which in number save on gas . In the eccentric of Pip , it saves around 400,000 to 500,000 m3 per yr .
Drain back systemBesides the scale of the project , there are two main reason why it is so particular . First of all , no stock glycol system of rules was installed but rather , they opt for a ‘ debilitate back system ’ .
In a glycol system – which can be found a lot in Denmark , the country with the most developed solar thermal systems of all – ethylene glycol is being pumped around so no overheating or freezing can take place . This intend that the scheme always ask to be turning which can be seen as a disadvantage . However , this is not the casing with the waste pipe back scheme of Pip Tesselaar .
At night or during the wintertime month there is hardly any sun . The solution to this problem was get hold in the form of the ‘ debilitate back ’ head teacher , which implicate draining the organisation of all its water when it is not flex . To make certain the water flows away on its own you only really require one thing , and that is a drainage . This saves on energy , makes it easier for the users to handle and has as an contribute incentive that there is no need for diol , a meaning that is environmentally polluting and in times of a leakage , seeps into the grease .
Efficient heat exchangeIt is also special how the whole matter matches specific company conditions , the existing energy supplying and the heat postulate for the crop . The freesia bulb need to be cool down in the land but do expect a fleck warmer temperatures above primer coat . To make this little plot of affectionateness and cold to match the sun , whether it shines or not , people really needed to remember about an efficient agency for high temperature exchange to take place – especially when keeping risk spreading in psyche , masses have opted to use two closed system – and heat storehouse . Regarding the latter , an supererogatory heat buffer of 800 cubic metre was installed to be fix for a few blurred daylight . Besides this , the grower has a theoretically boundless reservoir in the ground where he can store up to 140 m3 of pee per hour and from which he can harvest heating during the winter and coolness during the summer . The idea is to have a temperature of around 25 degrees Celsius in the warm reservoir underground , and around 8 degree in the inhuman one .
Good manipulation of CO2As for the heart that keep the organisation twist , Tesselaar can shape well with the solar instrument panel that were establish on an neighboring barn for peculiarly this intent . After all , the whole affair only turns when the Sunday is actually shining , and besides that , the grower still has his own CHP - installation . Steaming need to take plaza on a veritable foundation , but he can also make good use of the CO2 . Where back in the day , Pip used to steamer whole nursery in one go , he now plans things in such a way that only a small part of the glasshouse get stead every day . This mode all of the CO2 that was produced can be used in the greenhouse and nothing goes to wastefulness .
New projectsIn short , a very streamlined project , and a major investment funds to boot ( about three million euros or so were apparently used , but the necessary subsidy was also collected ) . However , it does give up well on its promise and although , by their own report , it has n’t really pluck up steam yet , both the grocery and familiar cultivator are looking with interest at what is transpire . Pip has experienced the quislingism between him and the installers at G2Energy as pleasant . According to him : they saw an chance in the market and used this undertaking to strain and turn out their worth . That is why nothing was result up to fortune , people where very helpful and people had to , as they read , really see this project as an investment for themselves . If this is in fact the case , this tactic has sort or less already been rewarded with a second , corresponding but even large undertaking at Mol Freesia from the neighboring townspeople of Nibbixwoud in the Netherlands . Mol Freesia – which happen to be a second freesia grower from the neighborhood – did not become their second guest by simple coincidence . The raiser know each other very well and both have extend their noesis in the field without settle any of it in a contract . Finally , people are most definitely talking behind the scenes and Pip knows about at least one major plant grower that has demonstrate some serious interestingness .
Tesselaar Freesia grows freesia on 38,000 m2 on one side of the road , and on the other side of the road , he has one hectare of greenhouses where he breeds and grows . He sells his new breeds to either Van den Bos Flower Bulbs or to Hofland , who then takes it to grocery . Tesselaar is also part of the growers ' system known as Unicum , where twelve Dutch growers are link up who aggregate interpret about half of the provision . Their combined area in the Netherlands covers around 65 hectares .
For more info :
Tesselaar FreesiaAltonstraat 61704 ml HeerhugowaardT : 072 572 0337E:[email protected]www.tesselaarfreesia.nl
