Currently the best hybrid inverter has got to be the EG4 18KPV Inverter with the Sol-Ark 15K coming in second only due to the $2,600 price difference. Both of these inverters can do it all. They are relatively easy to install, can be used with a small system and can scale up to handle a 200 amp system with as little as three units (you can start with one and two would cover most consumers needs), have small idle consumption, and can be setup in a variety of ways. If you are looking to DIY a system, I don’t think you can go wrong with either of these units.