In California, I'am in the SCE area (LA). We only get 3 cents/ kW. It took them 6 months to let that first check out to a " consumer"( I am really a provider or vendor now). I've heard that in the Dallas,TX area each consumer has a choice of one of four vendors. They said they pay about $.08/kW. They also asked me what is a Tier level (they don't have them in Dallas)? With my Leaf and an additional kW of panels, my return will be used to offset the price of gasoline not donated to SCE. Study U-Tube and look at the prices on Craig's list, then consider if you could install them yourself (use an electrician only to check your work). In a 10 k/W system, you'll probably save at least $3000. One last detail: under ideal conditions the 215 Enphase can only convert 225 watts per panel. Maybe your oversize panels will compensate for age in about 10 years (if the micro-inverter lasts that long)....Good Luck