rmakhoebe
Based on your March 10 2010 post, you may not have a clear understanding of what the Control/Automation capabilities of X10 is.
In essence X10 can only turn things ON and OFF. You can use the X10 home automation software to turn things ON and OFF by time or by conditional logic via macros you construct. The macros can be triggered by time, by external events, by date, etc.
The X10 web site (
http://www.x10.com) has a lot of examples of X10 control of lighting and appliances (for North America use) especially under the "ActiveHome Pro" and "Automation" tabs. The X10 equipment sold in North America is primarily for 120V 60Hz, so you may want to visit
http://www.x10europe.com/ which sells 230 V 50Hz X10 product.
Use X10 to turn ON and OFF a few lightbulbs and a fan with the X10 home automation controller / software and be sure to call your project "Green". I'm sure you get a high grade.