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Off The Grid

I'm going to live off-grid. Read my blog and learn how to do it yourself!

In august, during the “Do It Yourself 2.0” workshops set up by Cohabitat, I ran a workshop in which I taught how to build a simple and affordable solar thermal collector that is suitable for domestic hot water.

Of course I made a lot of video and photos so that I could edit it all into a short video. Here’s the video. The commentary is in Polish, but below you find a translated transcript. (more…)

5 ways to harness solar thermal energy

Today I wanted to show you in brief 5 good ways to use solar energy to produce useful heat. Most people probably at this moment think about solar thermal collectors for domestic hot water, but there are many other possibilities.

Of course I will write about solar collectors, though it’s not a device I suggest to use or purchase.

I hope this article will be an inspiration for further research and reading for you.

1. Solar thermal collectors for hot water

This is the traditional way many people in modern Europe use solar energy. The solar irradiation heat the fluid circulating in flat plate or evacuated tube collectors. If frost is not a concern, this fluid is simply domestic water, while in colder climates some solution of glycol has to be used. In the latter case an additional heat exchanger must be used. (more…)

Off-grid heating, ventilation and cooling

Off-grid house should not get any energy input from outside. It should use only energy generated on-site. Because of that, in my opinion a house that’s powered by propane (for genset, cooking and heating) is not off the grid.

But in cool climates most of the energy is required for heating and domestic hot water. How can an autonomous house get large amounts of energy needed for those two uses?

In this article I will get you a short review of off-grid HVAC, or off-grid heating, ventillation and air conditioning. (more…)

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