Does installing solar panels on your home lower your energy bill?
by Mitch Sandlin
1. influenced by: the initial installation costs
1.1. assumption: no cost installation with financing
1.2. assumption: cost is different with different installer
1.3. assumption: multiple installers will bid
1.4. assumption: no "DIY" installation
1.4.1. everything is included
1.4.2. turn-key system
2. influenced by: the financing terms
2.1. assumption: multiple financing options
2.1.1. multiple down payment options
2.1.2. multiple APR options
2.1.3. multiple payment options
2.2. assumption: credit at a certain level
2.3. assumption: payment must be lower than current utility payment
3. influenced by: the physical aspects of the installation platform
3.1. size of installation area
3.1.1. assumption: too small means not enough kWh
3.2. shape of installation area
3.2.1. assumption: awkward, dis-contiguous shape means not enough kWh
3.3. direction installation area is facing (N/S/E/W)
3.3.1. assumption: best is N/S facing
3.4. surrounding buildings & sun obstructing objects
3.4.1. shade is a factor