The following information you read helps you understand Jeff Davis better. Jeff Davis, The DIY Home Energy System has helped thousands of people create more energy, and save on their bills! It is always better to use simple English when writing descriptive articles, like this one on Jeff Davis. It is the layman who may read such articles, and if he can't understand it, what is the point of writing it? Everything youll learn from this course will help you to build your power system. Jeff Davis, The DIY Home Energy System has helped thousands of people create more energy, and save on their bills! It is always better to use simple English when writing descriptive articles, like this one on Jeff Davis. It is the layman who may read such articles, and if he can't understand it, what is the point of writing it? Jeff Davis, The DIY Home Energy System has helped thousands of people create more energy, and save on their bills! Everything youll learn from this course will help you to build your power system.