The idea behind solar kits is to do away with the biggest drawbacks to solar energy, the complexity of assembling a full solar power system and its initial cost. Even with the state and federal tax incentives, going green is a major commitment and investment. Solar panels do pay for themselves and even return a bit of a 'profit' after a period of time. Which is fantastic, if you have the capital and can afford the cost upfront. The main objective with a solar kit is cost-effectiveness while simplifying the process. Why pay somebody to do something that you can learn to do yourself? Solar kits usually attract pro-active do-it-yourself kinds of people, but the manufacturers are trying to appeal the average Joe as well.
There are two different types of solar kits that you'll come across. The first kind is the more expensive and more common option. These solar kits include solar panels and wiring and racking and everything that you'll need to start your new green life. Also, these kits come with instructions on how to install all the wonderful new toys you just bought. You have to tread carefully here, because you don't want to end up purchasing an inadequate solar kit. You have to know how much energy your house consumes on average a month. You have to know the average temperature of your region, things of that nature. This is because solar power systems are extremely specialized. Every inverter and solar panel works best in a specific setup. So you have to know your situation well enough to make an educated decision on which kit to purchase. This may seem daunting, but the manufacturers of the solar kits recognize this as a part of their business and make extra efforts to insure that you end up okay.
The second type of solar kit is the kind that would have you completely do it yourself. These solar kits will come with encyclopedic research materials already laid out for you. The idea is to familiarize you with the ins and outs of solar energy so that you can make your own solar panels from scratch. These kits are noticeably less expensive but also more demanding on the customer. These do-it-yourself kits almost always come with video footage and very tedious, step-by-step instruction. Going this route will save a lot of money, but you also obviously run the risk of human error. Your solar system may not be all that it could have been if you would've just paid a professional.
This, as with most everything else in the world of solar energy, depends on what you're looking for and what you're comfortable with, but overall solar kits are a great place to start.