Todays prices. Looks like they have come down a little from what they were a couple of years ago.
1- API SOLAR ELECTRIC PANELS- model #API-120-120 watts 34.8 vdc 3.44 amp $240.
Comes with a 25 year warranty.
2- KYOCERA SOLAR PANELS --model # KD205GXLP 205 watts 26.6 volts 7.71 amps $717.50 These are very popular and many off grid homes use this panel.
model # 210GXLP 210 watts 26.6 volts 7.90 amps $483. sale price. ^
25 year warranty.
3- SILRAY SOLAR PANELS model 180W 180 watts 36 volts 5 amps $387. sale price
25 year warranty.