You can build your own solar panel with this Mother Earth News blueprint.
This solar heat box attaches to the outside of a windowsill to harness the sun. This easy-to-follow blueprint includes photographs, wiring instructions, and airflow diagrams. Includes a list of materials and step-by-step instructions for a successful DIY project.
DISCLAIMER
It is your responsibility to make sure that any project you undertake is safe, effective, and legal for your situation. All Ogden Publications blueprints are offered AS IS for information and entertainment purposes only. No warranties are expressed or implied. By using this information or this blueprint you agree to hold Ogden Publications harmless from any damages or injuries of any kind that might result from errors, omissions, or other causes.