How Much Does Commercial Solar Installation Cost?
Average cost: $100,000 | Range: $50,000 - $200,000
Average Cost
$100,000
Low End
$50,000
High End
$200,000
Time Required
1-4 weeks
What Affects the Price?
Commercial installations benefit from lower per-watt costs due to scale. Ground-mount systems cost more for racking but avoid roof penetrations. Structural engineering studies ($2,000-$5,000) are required for most commercial rooftops. Utility interconnection for systems over 25 kW can add $5,000-$15,000.
Key Cost Factors
- System size (kW)
- Mounting type (rooftop vs ground)
- Structural engineering requirements
- Electrical upgrades
- Permitting complexity
- Utility interconnection fees
Cost Per Watt
Low End
$1.80/W
High End
$2.80/W
After the 30% federal ITC, the effective cost per watt drops to $1.26-$1.96/W.
Cost by State (Sample)
| State | Low | High | Avg |
|---|---|---|---|
| Alabama | $46,000 | $184,000 | $92,000 |
| Alaska | $70,000 | $280,000 | $140,000 |
| Arizona | $48,500 | $194,000 | $97,000 |
| Arkansas | $43,500 | $174,000 | $87,000 |
| California | $67,500 | $270,000 | $135,000 |
| Colorado | $54,000 | $216,000 | $108,000 |
| Connecticut | $61,000 | $244,000 | $122,000 |
| Delaware | $52,500 | $210,000 | $105,000 |
| Florida | $50,000 | $200,000 | $100,000 |
| Georgia | $47,500 | $190,000 | $95,000 |