Most income is generated by the sale of our own literature and products world wide.
We define practical as simple, inexpensive, environmentally-considerate, easy to build, low maintenance and, applicable to small scale energy needs. We find practical solutions for ourselves and then we share those solutions with everyone. We gather information from diverse sources, perform comprehensive experiments using rigorous standards, then publish how-to books to share the results with other researchers and the general public. Eagle-Research does not accept government grants. The money acquired from the sale of our books and devices is used to finance our on-going research.