Webbing--solar pice

Okay we gotta talk price. 
"A general rule of thumb-small, single-PV systems that produce about 75 watts can cost about $900.00 installed, or $12 per watt.  A 2-kilowatt (1 kilowatt=1,000 watts) system that meets most energy needs of an extremely energy-efficient home can cost $16,000-$20,000 installed, or $8-$10 per watt.  A 5 kilowatt system that completely meets the energy needs of many conventional homes can cost $30,000-$40,000 installed or $6-$8 per watt." (trustyguides.com)  So put all these prices in perspective:  My last utility bill (8/10-9/11) was $189.30.  We used 2189kWh of power.  Our home is small (not even 1400 sq ft) and its not energy efficient other than the light bulbs.  We used a lot of energy for a small house.  That makes it even more important for us to realize what we need to have in our next home that will reduce our energy needs and make solar panels an option.  I am thinking we will fall under the $16,000 - $20,000 range.  We do need to realize that this is something we could install ourselves.  My husband is very good at figuring anything our so maybe he can just do it.  I'm sure he's gonna love that! : )  I am worried about not knowing how much energy we will be using since the house will be brand new.  I guess we will have to have the house set up for solar, but use the electric company power for a few months so we will have an idea of house efficient the home is and then get the panels installed.