Solarzellenpaneele oder Sonnenkollektoren?

Posted by Marcel van der Steen in Energy saving, Explanation, Solar energy No Comments»

20140626_131259_artikelIn diesem Artikel erkläre ich wie ich eine Wahl getroffen habe zwischen Solarzellenpaneele (oder kürzer Solarpaneele, bringen elektrische Energie) und Sonnenkollektoren (bringen Wärme-energie).  Ich habe schön eine Wärmepumpe (Nutzung der Erdwärme mittels Wasser) und vielen raten mir an Sonnenkollektoren zu verwenden, damit die warmes Wasser machen wenn es viel Sonne gibt. Das Pufferfass wird so extra aufgewärmt durch warmes Wasser von den Kollektoren damit die Wärmepumpe keine (elektrische) Energie anwenden muss für Heizung. Dazu kommt noch dass für die Heizung warmes Wasser eine Wärmepumpe ein niedrigeres Leistungszahl hat weil die Temperatur des Wassers hoch sein muss (45 – 50 Grad).

Dieser Artikel macht einen Energie- und Kostenvergleich zwischen beide Forme von Energieerzeugung.

The Real Price of Solarpanels

Posted by Martin Kleinman in Solar energy 2 Comments»

panelen Due to very popular demand ☺ I was asked to translate my original article into English.    The original article, written in Dutch, can be found here.   Because this article is 6 months old,  I have updated the latest prices.

Last summer I received a question from one of my co-workers about our solar panels.   He didn’t want to know the recovery time of the whole set,  but the net kWh price from the generated electricity over the lifetime of the set of solar panels.  After making a calculation,  I found the conclusion surprising.

Home Build Solar System

Posted by Hans Maas in Solar energy 7 Comments»

3rd-panelI could see that my electricity bill was increasing year after year,  mostly because my modern day appliances can’t be turned off anymore.   I noticed that I had many appliances in the house which are on standby day in and day out.  This not only harms the environment,  but also my bank account as I am using electricity for nothing.   Unable to solve this problem (as this is how appliances are designed and I can’t change this),  I started to look into renewable energy to compensate for my unneeded losses and to take some pain from my bank account.

My Solar Panel System of 2940 Wp

Posted by Harm Otten in Solar energy 9 Comments»

20090430-zonnepanelen_On April 29’th 2009, finally my solar panels are installed! 14 panels of 210 Wp (Watt Peak) each (Suntech STP210-18/Ub). In total 2940 Wp (Watt Peak). Not a small one. Especially if I tell you that my last year’s usage in electricity has been around 1600 kWh. That’s why I bought it also for the future. If I had an addition to the family, and an electric car! My choices: Hybrid plug-in, or pure electrical, depending on what models will be available. But I will write an article about that some other time. Now more about this installation…

Desertec can provide whole Europe with Solar Energy

Posted by Jeroen van Agt in Solar energy 3 Comments»

cspOur sun, a nuclear fusion source which is already working reliably for more than 5 billion years, produces an extreme amount of energy. Within 6 hours, deserts on Earth receive more solar energy than we use in a whole year globally. Therefore it is strange that we are not already using this free energy source to it’s full potential. It looks like this is going to change now. A group of twenty big German corporations has plans to deliver solar power from Africa to German households in Europe within 10 years. The plan consists of investing 400 billion euros to build gigantic large Concentrated Solar Power (CSP) plants in North-Africa. With this investment, 15% of the total European electricity can be generated by solar power day and night. It is one of the biggest private green initiatives.