The price that home and business owners will pay decreases as more people sign contracts. The prices begin at tier 1, and as more and more people contract to install systems, the price for all is lowered.
| Tier | 1 | 2 | 3 | 4 | 5 |
| Levels | <25 kW | 25-50 kW | 50-100 kW | 100-200 kW | >200 kW |
| Price | $3.75 | $3.70 | $3.65 | $3.60 | $3.50 |
