Solar server up and running very stable
How to run your server on SunPower? Since January my Homepage runs off grid on solar. I spend approximately 400 € on two 50 W panels, a 20 Ah lithium batterie and an old Dell Tablet PC. Prevent GmbH in Karlsruhe offered a charge controller for free. Thanks a lot. Now I have unlimited GB […]
Vanadium redox flow, new battery type on the market!
Makes electric independence more affordable and eco-friendlier than led and lithium. The European Union funded scientific work on Redox flow batteries already years ago. You might have heard of Redox Flow batteries. Maybe you have seen Barack Obama being proud of saying out loud vanadium flow battery in his interview. It seemed promising. But often […]
Low tech building with higher comfort
Imagine a building with 5% more rentable surface and higher standard. Imagine your tenants more satisfied, without mould problems and less investement. The base of wellbeing in housing is energy. Clever energy concepts bring shelter, drinking water, electricity for cooking and entertainment as well as fresh air with an enjoyable temperature. Radiators, floor heating ore […]