So you're interested in a deluxe solar package. There are many variations on what your could have installed. A good solar contractor will can show your your options and make sure that your system can be upgraded without difficulty if you think you may want to do that. But here's a very rough idea what a typical deluxe system might look like:

for electricity:

solar photovoltaic (PV) panels rated at about 9,000 watts (This might be somewhere in the vicinity of 50-60 modules, depending on the ones used.)

2 Sharp 3500 watt inverters

GridPoint Connect "smart" battery backup system

hardware for PV system (includes hardware to attach panels to roof, AC disconnect, electrical wiring, etc.)

for hot water:

collectors for heating water (typically 2 or more collectors)

water storage tank

water pump

1 or 2 Takagi tankless water heaters to augment output of solar water collectors. These only heat water when needed, so they are very energy efficient. This replaces the old water heater.

hardware

A system like this would meet MOST or ALL of your energy needs. It would reduce your monthly energy bill. It would also reduce your impact on the environment. A system like this would have a battery backup, so during electrical outages, you'd still have power. The GridPoint Connect unit kicks in automatically if the power goes out. It's self-monitoring in case it's not maintaining a backup charge properly.

If your state allows "net-metering", like Virginia and Maryland, you can sell excess electricity back to the power company. When you're not home on a sunny day, your system could be producing electricity and providing this clean energy to others through the electrical grid.

The tankless water kicks in when demand for hot water exceeds the solar water system's ability to provide it. The tankless system heats water extremely quickly on demand. It doesn't store water like a conventional water heater.

To learn more about your options, you can find a local solar contractor or consultant.