Columbus Solar Overview
Columbus sits in a more favorable solar position than Cleveland—away from Lake Erie's cloud-generating effects. Central Ohio gets more sunshine and AEP Ohio serves most of the metro area. However, AEP Ohio's net billing policy (not true net metering) affects solar economics significantly.
AEP Ohio Net Billing
Understanding AEP's Policy
Important: AEP Ohio uses net billing, NOT true net metering. This is a critical distinction that affects solar economics:
- Net billing: Exports credited at generation rate only (~$0.04-0.06/kWh)
- Not 1:1: You do NOT get full retail credit for exports
- Self-consumption key: Solar you use directly saves full retail rate
- Exports worth less: Excess sent to grid is worth ~30% of retail
AEP Ohio Rate Structure
| Rate Component | Value |
|---|---|
| Retail Rate (consumption) | ~$0.12-0.14/kWh |
| Export Credit (generation only) | ~$0.04-0.06/kWh |
| System Size Limit | 25 kW residential |
| Credit Rollover | Monthly (monetary) |
Ohio Solar Incentives
State Incentives
- Property tax exemption: Solar doesn't increase property taxes
- SRECs: Ohio SREC market exists but values are low (~$5-10/SREC)
- No state tax credit: Ohio doesn't offer state solar tax credit
- Net billing: Lower-value exports (not true net metering)
Federal Tax Credit (2026 Update)
| Purchase Type | Federal Credit | Notes |
|---|---|---|
| Cash/Loan Purchase | None (25D expired) | Ended Dec 31, 2025 |
| PPA/Lease | 30% (48E) | Through Dec 2027 |
Costs & Savings in Columbus
Typical System Costs
| System Size | Gross Cost | Est. Annual Savings* |
|---|---|---|
| 5 kW | $15,000 | $500-700 |
| 7 kW | $21,000 | $700-950 |
| 10 kW | $30,000 | $1,000-1,350 |
*Assumes 60% self-consumption; varies with usage patterns
Self-Consumption Impact
With AEP Ohio's net billing, your savings depend heavily on how much solar you use directly vs. export:
- High self-consumption (70%+): Better economics, ~$140-160/kW annual savings
- Low self-consumption (40%): Weaker economics, ~$80-100/kW annual savings
- Battery storage: Can increase self-consumption significantly
- Daytime usage: Running AC, pool pumps, EV charging during day helps
Columbus-Specific Considerations
Optimizing for Net Billing
Strategies to maximize value under AEP Ohio's policy:
- Right-size your system: Don't oversize—excess exports have low value
- Shift usage to daytime: Run dishwasher, laundry, EV charging during peak solar
- Consider batteries: Store excess for evening use instead of exporting
- Time-of-use rates: Can sometimes improve economics if available
Climate Factors
- Better than Cleveland: Less lake effect cloud cover
- Four seasons: Production varies seasonally
- Severe weather: Occasional hail; consider panel warranties
- Snow: Moderate; panels typically self-clear
The Bottom Line
Columbus solar economics are challenging due to AEP Ohio's net billing.The gap between retail rates and export credits significantly impacts ROI. Payback periods of 13-18 years are common without strategic self-consumption optimization.
Best candidates: Homeowners with high daytime electricity usage (work from home, pool, daytime EV charging), those willing to add battery storage, or those who value energy independence beyond pure economics.
Key strategies:
- Size system to match daytime usage, not total annual usage
- Maximize self-consumption through usage shifting
- Consider battery storage to capture export value
- Evaluate PPA/lease options which may be competitive given challenges
Questions About Columbus Solar?
Our AI can help you understand AEP Ohio's net billing policy and evaluate whether solar makes sense for your Central Ohio home.
Ask About Columbus Solar