Ideally I would like to get solar panels. In a perfect world I would just build an off grid system and be done with it. But I don't have unlimited money or time to do it. Need to start some where and end up some where. Ideally I would start with a grid tie setup, but grid tie and going off grid setup couldn't be more different from each other. The only thing they have in common is solar panels and that's it. Even then if you don't get the ideal solar panels for your grid tie they won't exactly be the best for off grid use later on. Often grid tie setups use 60 cell panels just serried together for insane high DC voltages and 24 or 48v off grid setups use various arrangements 72 cell panels. Grid tie can use 72 cell panels, just serried up for insanely high voltage. In grid tie the solar panels are typically wired for 100 to 600 volts DC. So this way you can move all your power with one pair of relatively small wires to your grid tie inverter. In off grid setups you panel voltage is usually 24 or 48 volts normal working voltage and up to about 150 volts depending on your charge controller or up to 600v if money is no object. You use lots of individual wires or a few real thick ones to move your panel power to a charge controller and the charge controller charges up your batteries. A higher volt charge controller can pay for its self just in copper savings, if you pay retail for your wire depending on how far your panels are from the batteries. Grid tie inverters are useless when the power goes out. With no power grid input signal they won't make any power that's kind of a key safety feature too. That's just how its always been. And that's what they taught us when I was going to school to earn my associates in applied science for wind and solar power generation. There isn't any reason that a grid tie inverter can't produce at least a little useable 120v AC power off the raw incoming solar power while the sun is up, they just aren't made that way. Well sunny boy was like hold my beer and watch this and built a line of grid tie inverters ranging in power output from 3kw to 7kw that have a dedicated off grid power supply. So if the power goes out you can get up to 2,000w out of the secure power supply. Meaning you can get up to 2,000w out of the built in receptacle on the side of the inverter after the power goes out, as long as the sun is up. The main power going to your house cuts out when you loose utility power. I have a feeling it won't deal with surge currents very well. But it's better than what you get with all the previous generations of grid tie inverter. The best part about it is the price is almost the same as any other name brand inverter. But for me I think I found what I need. And it's a little expensive. A radian 4kw hybrid inverter. These take 48v DC panel power and can be used as a grid tie inverter only, a stand alone inverter with batteries or both. But they are expensive. Around double the price of a typical grid tie inverter. When my solar and wind power school books were published, most of them between 2009 and 2012, these things didn't exist or were so new the authors hadn't seen them. So they are fairly new. Maybe I will do both. Start out with a sunny boy with secure power supply, 72 cell panels that can easily be reconfigured by easy access junction boxes for different applications later on then next solar upgrade get a radian hybrid system with batteries, then charge controller solar panels and all later on.