Solar & Wind Energy ⁽²⁾

DIY guides on harvesting solar and wind energy at home — from $5 wind generators built from scrap motors to pop-can solar heaters that cut winter heating bills. Written for the practical builder, not the armchair theorist: every project has a real parts list, real cost, and honest trade-offs about what works and what does not.

DIY Solar Heating

The cheapest warm air you will ever buy. Our master DIY solar air heater guide walks through building a 2-kilowatt pop-can panel for under $200 that will push 35°C+ air into your home on any sunny winter day. Step-by-step plans, cost breakdown, mounting tips, and the critical detail most guides skip: how to stop backdrafting at night.

Wind Generators

Yes, you really can build a functional wind generator for under $50 from a repurposed treadmill motor, printer-motor, or car alternator. Our DIY wind turbine plans guide compares motor choices head-to-head — which gives you genuine output at 10 mph, which only works at gale force, and which are a waste of copper. Tower height, blade pitch, charge controllers, and the battery-bank math that prevents roasting your batteries after a month.

Serbian-Language Deep Dives

For Serbian-speaking readers building off-grid systems, our solarni kolektori za grejanje kuće and solarni paneli guide go deeper on local suppliers, materials, and Serbian-winter performance numbers that Western guides gloss over.

What This Category Is Not

This is not a corporate "go buy a 6kW grid-tied install from our preferred contractor" content mill. It is DIY-first, written from the perspective of someone who has built and busted these systems, with real numbers instead of marketing brochures. If you want to hire a pro instead of build, the honest answer is usually: hire the pro. But if you enjoy the build, these guides will save you months of trial and error.

New builds documented regularly. If you are attempting a project not covered here, send the build log — the most requested topics usually become the next article.