Comparison table
All seeded solar savings pages
Source of truth: current seed data
| City | State | Solar irradiance (kWh/m²/day) | Estimated 25-year savings | Payback period (years) | Primary utility + net-metering status | Federal / state / utility incentives summary |
|---|---|---|---|---|---|---|
| Albuquerque | New Mexico | 6.77 | $36,400 | 8.2 |
PNM (Public Service Company of New Mexico) Retail-rate credit for exported solar energy (up to market cap) |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | New Mexico Gross Receipts Tax Deduction (Solar Equipment) (Exemption from NM gross receipts tax on solar equipment purchases); New Mexico Solar Equipment Property Tax Exemption (100% of added home value from solar system) | PNM Net Metering (Retail Rate Credit) (Retail-rate credit for exported solar energy (up to market cap)) |
| Atlanta | Georgia | 5.17 | $28,075 | 9.3 |
Georgia Power Bill savings depend on avoided retail use plus Georgia Power export-program terms |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Georgia residential solar property-tax exemption (Property-tax relief for qualifying residential solar value) | Georgia Power rooftop-solar interconnection / buyback pathway (Bill savings depend on avoided retail use plus Georgia Power export-program terms) |
| Austin | Texas | 5.07 | $16,705 | 10.4 |
Austin Energy ~$0.097/kWh for exported solar energy |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Texas Solar Property Tax Exemption (100% of added home value from solar) | Austin Energy Value of Solar Tariff (VOST) (~$0.097/kWh for exported solar energy) |
| Baltimore | Maryland | 4.60 | $31,900 | 10.6 |
BGE (Baltimore Gas and Electric) Retail rate credit for excess solar exported to the grid under Maryland PSC net metering rules |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Maryland SREC market (Eligible systems generate MD SRECs; Maryland's solar carve-out under the RPS supports a more active SREC market than Ohio); Maryland Community Solar (Option to subscribe to off-site community solar if rooftop solar is not feasible) | BGE net metering (Retail rate credit for excess solar exported to the grid under Maryland PSC net metering rules) |
| Birmingham | Alabama | 4.73 | $21,800 | 11.9 |
Alabama Power ~$0.032–$0.044/kWh for exported solar energy (avoided cost) |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Alabama Power Distributed Generation (Avoided Cost Rate) (~$0.032–$0.044/kWh for exported solar energy (avoided cost)) |
| Boston | Massachusetts | 4.45 | $32,130 | 6.8 |
Eversource Energy (Boston) Retail rate credit (~$0.26/kWh) for excess solar exported to the grid |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Massachusetts SMART Program (Solar Massachusetts Renewable Target) (Monthly incentive payment of ~$0.15–$0.20/kWh generated for 10 years); Massachusetts State Income Tax Credit (15% of net installation cost, up to $1,000); Massachusetts Property Tax Exemption for Solar (Solar system value excluded from property tax assessment) | Eversource Net Metering (Retail rate credit (~$0.26/kWh) for excess solar exported to the grid) |
| Charlotte | North Carolina | 4.63 | $16,538 | 12.1 |
Duke Energy Carolinas Retail-rate bill credit for exported solar (~$0.1187/kWh) |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | NC Solar Property Tax Exemption (100% of added home value from solar); NC Sales Tax Exemption for Solar Equipment (Exempt from NC state and local sales tax (6.75–7.25%)) | Duke Energy Carolinas Net Metering (Retail-rate bill credit for exported solar (~$0.1187/kWh)) |
| Chicago | Illinois | 4.23 | $9,655 | 13.8 |
Commonwealth Edison (ComEd) Retail rate credit (~$0.135/kWh) for excess solar exported to the grid |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Illinois Shines — Adjustable Block Program (ABP) (Lump-sum SREC payment of $7,000–$10,000+ for a 6 kW residential system (block price dependent)); Illinois Property Tax Exemption for Solar (Added value from solar excluded from assessed property value for up to 10 years) | ComEd Net Metering (Retail rate credit (~$0.135/kWh) for excess solar exported to the grid) |
| Cincinnati | Ohio | 4.45 | $33,500 | 11.4 |
Duke Energy Ohio Residential interconnection with customer bill-credit treatment under Ohio regulatory rules |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Ohio SREC market (Eligible systems can generate Ohio SRECs, but market depth and pricing are limited) | Duke Energy Ohio net metering / interconnection (Residential interconnection with customer bill-credit treatment under Ohio regulatory rules) |
| Cleveland | Ohio | 4.40 | $37,177 | 10.2 |
The Illuminating Company (FirstEnergy) Residential interconnection with customer bill-credit treatment under Ohio regulatory rules |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Ohio SREC market (Eligible systems can generate Ohio SRECs, but market depth and pricing are limited) | FirstEnergy / Illuminating Company net metering / interconnection (Residential interconnection with customer bill-credit treatment under Ohio regulatory rules) |
| Columbus | Ohio | 4.54 | $39,475 | 9.8 |
AEP Ohio Interconnection available; export compensation depends on PUCO-approved rules and rates |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Ohio SREC market (Residential systems can generate SRECs, but pricing is limited and market depth is weaker than top-tier SREC states) | AEP Ohio interconnection / export compensation (Interconnection available; export compensation depends on PUCO-approved rules and rates) |
| Dallas | Texas | 5.38 | $16,605 | 10.5 |
Oncor Electric Delivery service area (ERCOT deregulated) Varies by provider — typically $0.03–$0.07/kWh for exported energy |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Texas Solar Property Tax Exemption (100% of added home value from solar) | REP Solar Buyback Programs (Varies by provider — typically $0.03–$0.07/kWh for exported energy) |
| Denver | Colorado | 5.57 | $19,695 | 9.6 |
Xcel Energy (Public Service Company of Colorado) Retail rate credit for exported solar energy |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Colorado Residential Solar Tax Credit (15% of installation cost, up to $2,500); Colorado Solar Property Tax Exemption (100% of added home value from solar) | Xcel Solar*Rewards Production Incentive (Per-kWh production incentive for first 10 years); Colorado Net Metering (Retail Rate) (Retail rate credit for exported solar energy) |
| Detroit | Michigan | 4.25 | $25,200 | 11.0 |
DTE Energy (Detroit Edison) Avoided cost credit (~$0.038–$0.048/kWh) for excess solar exported to the DTE grid |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Michigan Saves Home Energy Financing (Low-interest financing (as low as 2.99–6.99% APR) for energy improvements including solar); Michigan Property Tax Exemption for Solar (PA 478 of 2008) (Solar system value excluded from local property tax assessment) | DTE Energy Distributed Generation (DG) Tariff (Avoided cost credit (~$0.038–$0.048/kWh) for excess solar exported to the DTE grid) |
| Fort Worth | Texas | 5.35 | $16,350 | 10.6 |
Oncor Electric Delivery (ERCOT deregulated — Retail Electric Provider market) Varies by provider — typically $0.03–$0.07/kWh for exported energy |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Texas Solar Property Tax Exemption (100% of added home value from solar excluded from property tax assessment) | REP Solar Buyback Programs (Varies by provider — typically $0.03–$0.07/kWh for exported energy) |
| Houston | Texas | 4.82 | $14,305 | 11.4 |
CenterPoint Energy service area (ERCOT deregulated) Varies by provider — typically $0.03–$0.07/kWh for exported energy |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Texas Solar Property Tax Exemption (100% of added home value from solar) | REP Solar Buyback Programs (Varies by provider — typically $0.03–$0.07/kWh for exported energy) |
| Indianapolis | Indiana | 4.66 | $34,900 | 10.7 |
AES Indiana (Indianapolis Power & Light / IPL) Post-2022 export compensation under EDG tariff, not legacy full-retail net metering |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Indiana — no major state residential solar tax credit (No broad statewide residential solar tax credit or rebate) | AES Indiana Rider 16 Excess Distributed Generation (Post-2022 export compensation under EDG tariff, not legacy full-retail net metering) |
| Jacksonville | Florida | 5.48 | $23,313 | 10.0 |
JEA (Jacksonville Electric Authority) Legacy net metering for grandfathered pre-2018 systems; current DG exports compensated near fuel rate (~$0.03050/kWh) |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Florida Residential Solar Sales Tax Exemption (100% exemption from Florida sales tax on eligible solar equipment); Florida Residential Renewable Energy Property Tax Exemption (100% of added home value from residential PV excluded from property tax) | JEA Distributed Generation / Legacy Net Metering Context (Legacy net metering for grandfathered pre-2018 systems; current DG exports compensated near fuel rate (~$0.03050/kWh)) |
| Kansas City | Missouri | 4.87 | $19,120 | 13.1 |
Evergy (Kansas City service territory) Full retail rate ($0.112/kWh) credit for exported solar energy, up to 100 kW system size |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Missouri Net Metering (1:1 at Retail Rate, up to 100 kW) (Full retail rate ($0.112/kWh) credit for exported solar energy, up to 100 kW system size); Missouri Solar Energy System Property Tax Exemption (100% of added home value from solar system excluded from property tax assessment) | Evergy Energy Efficiency Rebates (Variable rebates for qualifying energy efficiency upgrades; check current Evergy programs) |
| Las Vegas | Nevada | 6.33 | $39,400 | 9.8 |
NV Energy (Nevada Power) Export credit at PAGAD rate, well below retail |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Nevada Property Tax Exemption for Solar (Full assessed-value exemption for residential solar equipment) | NV Energy Net Metering (NEM 3.0 equivalent) (Export credit at PAGAD rate, well below retail) |
| Los Angeles | California | 5.62 | $38,845 | 6.0 |
Los Angeles Department of Water and Power (LADWP) Retail rate credit (~$0.215/kWh) for exported solar energy |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | California Property Tax Exclusion for Solar (100% of added assessed value from solar installation); Self-Generation Incentive Program (SGIP) — Battery Storage ($150–$1,000 per kWh of battery capacity (income-qualified tiers higher)) | LADWP Net Energy Metering (NEM) (Retail rate credit (~$0.215/kWh) for exported solar energy) |
| Louisville | Kentucky | 4.69 | $39,000 | 12.7 |
LG&E (Louisville Gas and Electric) 1:1 retail-rate credit for grandfathered customers; reduced rate for new 2025+ enrollments |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Kentucky — no major state residential solar incentive (No broad statewide residential solar tax credit or rebate) | LG&E Net Metering (transitional) (1:1 retail-rate credit for grandfathered customers; reduced rate for new 2025+ enrollments) |
| Memphis | Tennessee | 5.17 | $28,297 | 11.2 |
MLGW / TVA No utility net-metering entry listed |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Tennessee — no major state residential solar incentive (No broad statewide residential solar tax credit or rebate) | TVA Green Connect / local TVA clean-power option (TVA Green Connect functions as a flat-price clean-power differentiator, not a traditional rooftop-solar rebate) |
| Miami | Florida | 5.49 | $18,305 | 9.9 |
Florida Power & Light (FPL) Retail rate credit for excess solar exported to the grid |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Florida Sales Tax Exemption for Solar Equipment (6% Florida sales tax waived on solar equipment); Florida Property Tax Exemption for Residential Solar (100% of added home value from solar installation) | FPL Net Metering (Retail rate credit for excess solar exported to the grid) |
| Milwaukee | Wisconsin | 4.17 | $42,990 | 9.4 |
We Energies Residential interconnection with utility bill-credit treatment for qualifying customer-owned solar |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Focus on Energy residential solar / clean-energy incentives (Program availability varies; Milwaukee homeowners should verify current Focus on Energy solar-related rebate paths before signing a contract) | We Energies net metering / customer-owned generation (Residential interconnection with utility bill-credit treatment for qualifying customer-owned solar) |
| Minneapolis | Minnesota | 4.80 | $26,000 | 8.3 |
Xcel Energy (Northern States Power) Retail rate credit (~$0.135/kWh) for excess solar exported to the Xcel grid |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Minnesota Property Tax Exemption for Solar (Solar system value excluded from property tax assessment) | Minnesota Solar*Rewards (Xcel Energy) (Monthly performance payment of ~$0.07/kWh generated for 10 years); Xcel Energy Net Metering (Retail rate credit (~$0.135/kWh) for excess solar exported to the Xcel grid); Minnesota Solar*Rewards Community (Community Solar) (Bill credits for subscribing to a community solar garden (no rooftop install required)) |
| Nashville | Tennessee | 4.50 | $19,300 | 13.5 |
Nashville Electric Service (NES) Grid-tied interconnection available; export credited at TVA avoided-cost rate (not full retail) |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Tennessee — No State Income Tax (context note) (N/A — no state income tax credit exists because TN has no personal income tax); Tennessee Sales Tax Exemption for Solar Equipment (Potential exemption from TN state and local sales tax) | NES/TVA Residential Solar Interconnection (Grid-tied interconnection available; export credited at TVA avoided-cost rate (not full retail)) |
| New Orleans | Louisiana | 5.10 | $34,000 | 11.2 |
Entergy New Orleans Retail rate credit for excess solar exported to the grid under Louisiana PURPA-based net metering rules |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Entergy New Orleans net metering (Retail rate credit for excess solar exported to the grid under Louisiana PURPA-based net metering rules) |
| Oklahoma City | Oklahoma | 5.22 | $38,500 | 12.7 |
OG&E (Oklahoma Gas and Electric) Retail-rate credit for exported generation under OG&E net-metering tariff |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Oklahoma — no major state residential solar incentive (No broad statewide residential solar tax credit or rebate) | OG&E Net Metering (Retail-rate credit for exported generation under OG&E net-metering tariff) |
| Orlando | Florida | 5.32 | $34,100 | 11.3 |
Duke Energy Florida / OUC Duke: retail-rate net metering; OUC: community-solar-rate export credit for new post-2025 applications, then retail fuel rate |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Florida Property Tax Exemption for Residential Solar (Full assessed-value exemption for residential renewable energy systems); Florida Sales Tax Exemption on Solar Equipment (Florida sales tax exempt on solar energy systems and components) | Duke Energy Florida / OUC Solar Export Credit (Duke: retail-rate net metering; OUC: community-solar-rate export credit for new post-2025 applications, then retail fuel rate) |
| Philadelphia | Pennsylvania | 4.65 | $22,500 | 10.8 |
PECO (PECO Energy Company) Retail rate credit (~$0.155/kWh) for excess solar exported to the grid |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | PA Sunshine Solar Program (Up to ~$0.10/watt for residential systems; competitive program — verify current availability); Pennsylvania AEPS SREC Market (~$15–$40 per SREC (1 SREC = 1 MWh generated); ~6.9 SRECs/year for a 6 kW system); Pennsylvania Property Tax Exemption for Solar (Solar system value excluded from property assessment for local real estate taxes) | PECO Net Metering (Retail rate credit (~$0.155/kWh) for excess solar exported to the grid) |
| Phoenix | Arizona | 6.54 | $20,470 | 9.3 |
Arizona Public Service (APS) ~$0.076/kWh for exported solar energy |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Arizona Residential Solar Energy Tax Credit (25% of installation cost, up to $1,000); Arizona Solar Equipment Property Tax Exemption (100% of added home value from solar) | APS Net Billing (Resource Comparison Proxy) (~$0.076/kWh for exported solar energy) |
| Pittsburgh | Pennsylvania | 4.42 | $40,232 | 9.8 |
Duquesne Light Company Bill credit treatment under Pennsylvania net metering rules for qualifying customer-owned generation |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Pennsylvania AEPS SREC market (Residential systems can generate PA SRECs; value is real but materially smaller than DC or New Jersey economics) | Duquesne Light net metering / interconnection (Bill credit treatment under Pennsylvania net metering rules for qualifying customer-owned generation) |
| Portland | Oregon | 4.04 | $8,860 | 14.6 |
Portland General Electric (PGE) Full retail rate credit for exported solar energy |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Oregon Solar Property Tax Exemption (100% of added home value from solar system) | Energy Trust of Oregon Solar Rebate (Up to $0.20/W — approximately $1,200 for a 6 kW system); Oregon Net Metering (Retail Rate) (Full retail rate credit for exported solar energy) |
| Raleigh | North Carolina | 4.70 | $35,500 | 10.8 |
Duke Energy Progress Full retail-rate bill credit for exported solar (~$0.116/kWh) |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | NC Solar Energy Equipment Property Tax Exclusion (80% of solar equipment value excluded from property tax assessment) | Duke Energy Progress Net Metering (Full retail-rate bill credit for exported solar (~$0.116/kWh)); Duke Energy Progress Residential Solar Rebate (Check current program availability at duke-energy.com/home/products/solar) |
| Richmond | Virginia | 4.94 | $45,000 | 9.4 |
Dominion Energy Virginia Full retail-rate credit for exported generation up to 150% of annual load |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | PJM SREC Market — Virginia Solar Renewable Energy Credits (Virginia SRECs trade on the PJM market; value varies with RPS compliance demand) | Virginia Clean Economy Act — Net Metering 3.0 (Full retail-rate credit for exported generation up to 150% of annual load); Dominion Energy Solar Rebate Program ($250 per kilowatt installed (AC)) |
| Sacramento | California | 5.28 | $27,520 | 7.7 |
Sacramento Municipal Utility District (SMUD) Flat export credit (~$0.07–$0.085/kWh) for exported solar energy |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | California Property Tax Exclusion for Solar (100% of added assessed value from solar installation); Self-Generation Incentive Program (SGIP) — Battery Storage ($150–$1,000 per kWh of battery capacity (income-qualified tiers higher)); AB 1236 Expedited Solar Permit Review (Streamlined permit processing — 3-business-day target for qualifying systems) | SMUD Net Energy Metering (NEM) (Flat export credit (~$0.07–$0.085/kWh) for exported solar energy) |
| Salt Lake City | Utah | 5.50 | $34,500 | 11.0 |
Rocky Mountain Power (PacifiCorp) Export credit at avoided-cost rate (~$0.055–$0.065/kWh) for customers enrolling post-December 2017 |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Utah Renewable Energy Systems Tax Credit (25% of system cost, capped at $1,600 per residential system); Utah Solar Energy Equipment Property Tax Exemption (Solar equipment value excluded from residential property tax assessment) | Rocky Mountain Power Net Metering (Non-Grandfathered) (Export credit at avoided-cost rate (~$0.055–$0.065/kWh) for customers enrolling post-December 2017) |
| San Antonio | Texas | 5.30 | $17,291 | 10.1 |
CPS Energy Credit for exported solar energy at avoided cost rate |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Texas Solar Property Tax Exemption (100% of added home value from solar) | CPS Energy Solar Buyback (NEM) (Credit for exported solar energy at avoided cost rate) |
| San Diego | California | 5.82 | $57,850 | 4.3 |
San Diego Gas & Electric (SDG&E) Avoided-cost credit (~$0.04–$0.08/kWh) for exported solar energy |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | California Property Tax Exclusion for Solar (100% of added assessed value from solar installation); Self-Generation Incentive Program (SGIP) — Battery Storage ($150–$1,000+ per kWh of battery capacity (income-qualified tiers higher)) | SDG&E Net Billing Tariff (NEM 3.0) (Avoided-cost credit (~$0.04–$0.08/kWh) for exported solar energy) |
| San Francisco | California | 4.96 | $28,685 | 8.0 |
Pacific Gas and Electric (PG&E) Export credits at ~$0.04–$0.08/kWh (Avoided Cost Calculator rate) |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | California Property Tax Exclusion for Solar (R&T §73) (100% of added assessed value from solar installation); Self-Generation Incentive Program (SGIP) — Battery Storage ($150–$1,000 per kWh of battery capacity (income-qualified tiers higher)) | PG&E Net Billing Tariff (NEM 3.0) (Export credits at ~$0.04–$0.08/kWh (Avoided Cost Calculator rate)) |
| San Jose | California | 5.14 | $52,945 | 4.7 |
Pacific Gas and Electric (PG&E) ACC export credit (~$0.04–$0.08/kWh for exported solar energy) |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | California Property Tax Exclusion for Solar (100% of added assessed value from solar installation); Self-Generation Incentive Program (SGIP) — Battery Storage ($150–$1,000 per kWh of battery capacity (income-qualified tiers higher)) | PG&E NEM 3.0 Net Billing (ACC export credit (~$0.04–$0.08/kWh for exported solar energy)) |
| Seattle | Washington | 3.57 | $6,400 | 21.0 |
Seattle City Light Full retail rate credit for exported solar energy |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Washington State Sales Tax Exemption on Solar (Full retail sales tax exemption on solar equipment and installation (≈10.25% in Seattle)); Washington Solar Property Tax Exemption (100% of added home value from solar system) | Washington Net Metering (Full Retail Rate) (Full retail rate credit for exported solar energy) |
| St. Louis | Missouri | 4.67 | $17,990 | 13.6 |
Ameren Missouri Full retail rate ($0.110/kWh) for exported solar energy, up to 100 kW system size |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Missouri Net Metering (1:1 at Retail Rate, up to 100 kW) (Full retail rate ($0.110/kWh) for exported solar energy, up to 100 kW system size); Missouri Solar Energy System Property Tax Exemption (100% of added home value from solar system) |
| Tampa | Florida | 5.46 | $27,500 | 9.4 |
Tampa Electric (TECO) Bill credit for exported solar energy at applicable FL PSC net metering rate |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Florida Residential Solar Sales Tax Exemption (100% exemption from Florida sales and use tax on eligible residential solar energy equipment); Florida Residential Renewable Energy Property Tax Exemption (100% of added home value from residential solar excluded from property tax assessment); Florida Solar Rights Act (Legal protection against HOA or local restrictions prohibiting residential solar) | TECO Net Metering (FL PSC Rules) (Bill credit for exported solar energy at applicable FL PSC net metering rate) |
| Tucson | Arizona | 6.39 | $19,970 | 9.0 |
Tucson Electric Power (TEP) ~$0.076–$0.092/kWh for exported solar energy |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | Arizona Residential Solar Energy Tax Credit (25% of installation cost, up to $1,000); Arizona Solar Equipment Property Tax Exemption (100% of added home value from solar) | TEP Net Metering (Avoided Cost Rate) (~$0.076–$0.092/kWh for exported solar energy) |
| Washington | District of Columbia | 4.54 | $12,335 | 12.5 |
Pepco (Potomac Electric Power Company) Retail rate credit (~$0.14/kWh) for excess solar exported to the grid |
Federal Solar Investment Tax Credit (ITC) (30% of system cost) | DC SREC-II (Solar Renewable Energy Credits) (~$350–$450 per SREC (1 SREC = 1 MWh generated); 7+ SRECs/year for a 6 kW system) | Pepco Net Metering (Retail rate credit (~$0.14/kWh) for excess solar exported to the grid) | DC Solar for All (Low-income customers may receive free solar and bill credits; moderate-income rebates available); DC Property Tax Exemption for Solar (Solar system value excluded from real property tax assessment) |