We cannot speak on how other companies do business but in those cases their system is likely not producing 100% of their power so they need electricity from their utility company at the same rate you’d pay without it. This in conjunction with a solar payment is certainly not ideal but usually still saves money. When it comes to our company not only are we very transparent with what your offset will be with solar. (How much of your electricity will be supplied from the panels vs what you need) we evaluate your home to ensure the panels will produce what we project prior to executing a contract.