“DIY home power” covers several different goals. Define the goal first; otherwise comparisons become meaningless.
Goal 1: lower bills
Begin with usage measurement, efficiency and rate-plan understanding. Generation comes after you know the load.
Goal 2: outage backup
List essential circuits/appliances, starting watts, running watts and desired runtime. Then evaluate batteries, portable power stations or generators.
Goal 3: off-grid independence
This is a system design problem involving load reduction, generation, storage, seasonal conditions, controls and backup.
Goal 4: experimentation
Experimental energy projects can be educational, but they should not be confused with certified household backup equipment or connected to home wiring without qualified guidance.
Related: home energy independence, lowering electric bills, and Energy Revolution alternatives.