Key Takeaways
- In 2023, US residential solar installations reached 4.1 GWdc, representing 36% of total US solar additions
- Global residential solar PV market size was valued at USD 52.4 billion in 2022 and is projected to reach USD 98.7 billion by 2030 at a CAGR of 8.3%
- Residential solar accounted for 15% of global distributed solar capacity additions in 2022, totaling 25 GW
- In Q4 2023, US residential solar installations hit record 1.2 GW, up 44% YoY
- Average US residential solar system size increased to 8.5 kW in 2023 from 7.8 kW in 2022
- 487,000 new residential solar systems were installed in the US in 2023
- Levelized cost of residential solar fell to $0.08/kWh in 2023 from $0.10/kWh in 2022
- Average upfront cost for a 7 kW US residential solar system was $19,500 after incentives in 2023
- Residential solar payback period averaged 6.5 years in sunny states like AZ in 2023
- Average residential solar panel efficiency reached 20.5% in 2023 deployments
- Bifacial panels comprised 30% of new residential solar installs in 2023, boosting yield 10%
- Home battery capacity paired with solar averaged 13 kWh per system in 2023
- Residential solar ITC extended 30% through 2032 under IRA 2022
- 43 US states offered residential solar rebates or incentives in 2023
- California's SGIP provided $1,000/kWh for low-income residential storage 2023
The residential solar energy industry is experiencing rapid global growth driven by falling costs and supportive policies.
Cost Trends and Economics
- Levelized cost of residential solar fell to $0.08/kWh in 2023 from $0.10/kWh in 2022
- Average upfront cost for a 7 kW US residential solar system was $19,500 after incentives in 2023
- Residential solar payback period averaged 6.5 years in sunny states like AZ in 2023
- Battery storage added $10,000 to average residential solar system cost in 2023
- Solar PPA prices averaged $0.045/kWh for residential in 2023, down 15% YoY
- Federal ITC claimed $7.5 billion in residential solar credits in 2023
- Soft costs accounted for 40% of residential solar installation costs in 2023
- Average residential solar LCOE in California was $0.07/kWh in 2023
- Lease penetration dropped to 20% of residential solar in 2023 from 75% in 2015
- Hardware costs declined 5% YoY to $1.20/W for residential modules in 2023
- Residential solar savings averaged $1,500/year per household in 2023
- BOS costs for residential solar averaged $1.10/W in 2023
- 85% of residential solar owners saw ROI within 10 years in 2023 analyses
- NEM 3.0 increased residential solar costs by 20% in CA post-2023
- Average loan interest rate for solar financing was 4.5% in 2023
- Residential solar electricity bill savings reached 90% for paired storage systems in 2023
- Module prices hit $0.25/W for Tier 1 residential panels in late 2023
- O&M costs for residential solar averaged $10/kW-year in 2023
- Cash purchases averaged $2.50/W pre-incentive in high-cost states 2023
- PPA contract lengths averaged 20 years with 2.9% annual escalators in 2023
- Inflation Reduction Act boosted residential solar savings by 30% via enhanced ITC
- Average residential solar system value appreciated home prices by $15,000 in 2023
- Financing approval rates for residential solar hit 92% in 2023 with good credit
- Utility bill escalation rates assumed 2.5% annually in 2023 solar economics models
- Residential solar breakeven grid parity achieved in 45 US states by 2023
- Storage adder to solar LCOE was $0.03/kWh in 2023 residential models
- Average warranty value for residential panels was 25 years linear degradation 0.5%/year 2023
- Residential solar hedge against 5% utility rate hikes saved $25,000 over 25 years in 2023 calcs
- Q1 2024 residential solar costs stable at $2.72/W despite supply chain issues
- Residential bifacial module adoption cut costs 8% in 2023 installs
Cost Trends and Economics Interpretation
Installations
- In Q4 2023, US residential solar installations hit record 1.2 GW, up 44% YoY
- Average US residential solar system size increased to 8.5 kW in 2023 from 7.8 kW in 2022
- 487,000 new residential solar systems were installed in the US in 2023
- California led with 175,000 residential solar installations in 2023
- Florida residential solar installations numbered 85,000 systems in 2023
- Texas saw 45,000 new residential solar installs in 2023
- Over 80% of US residential solar installations in 2023 included battery storage pairings
- Residential solar installation time averaged 2.5 days per system in 2023, down 20% from 2021
- In 2023, 65% of US residential solar installs were leased or financed, 35% cash purchases
- Arizona installed 35,000 residential solar systems in 2023
- Nevada residential installs reached 25,000 systems in 2023
- New York state added 30,000 residential solar systems in 2023
- 1 in 25 US households now have solar panels as of 2023 installations data
- Average installation cost per watt for residential solar dropped to $2.80/W in 2023
- 70% of 2023 residential solar installs used high-efficiency monocrystalline panels
- Residential solar permitting time averaged 45 days in 2023, varying by state
- In 2023, 55% of installs were ground-mount vs. roof-mount in rural areas
- Massachusetts installed 22,000 residential systems in 2023
- Utility interconnection approvals for residential solar reached 95% success rate in 2023
- 40% of 2023 residential installs included EV charger integration
- Hawaii installed 12,000 residential solar + storage systems in 2023
- Average rooftop space used for solar was 450 sq ft per US residential install in 2023
- 25% of 2023 installs were repowers or expansions of existing systems
- New Jersey added 28,000 residential solar systems in 2023
- Colorado residential installs hit 18,000 in 2023, up 22%
- 60% of residential solar labor hours in 2023 were certified NABCEP installers
- US residential solar systems installed per capita highest in California at 1 per 70 homes in 2023
- In 2023 Q1-Q3, residential solar exports to grid totaled 5 TWh in California
- 2023 saw 15% of installs in multifamily residential buildings
- Average residential solar inverter size was 7.5 kW in 2023 installs
- US residential solar installation growth slowed to 10% in Q1 2024 due to high interest rates
Installations Interpretation
Market Growth
- In 2023, US residential solar installations reached 4.1 GWdc, representing 36% of total US solar additions
- Global residential solar PV market size was valued at USD 52.4 billion in 2022 and is projected to reach USD 98.7 billion by 2030 at a CAGR of 8.3%
- Residential solar accounted for 15% of global distributed solar capacity additions in 2022, totaling 25 GW
- US residential solar market grew by 35% year-over-year in 2022, installing 3.8 million systems cumulatively
- By 2024, residential solar is expected to represent 40% of new US solar capacity additions annually
- California's residential solar market installed 1.2 GW in 2023, comprising 45% of national residential additions
- Residential solar capacity in Europe reached 12 GW by end of 2023, with Germany leading at 4 GW
- Australia's residential solar installations hit 3.2 GW in 2023, up 12% from 2022
- India's residential rooftop solar capacity grew to 1.5 GW by 2023, targeting 10 GW by 2027
- Residential solar market in Japan added 1.8 GW in FY2023, driven by post-Fukushima incentives
- By 2030, residential solar is forecasted to account for 25% of global rooftop PV capacity at 350 GW total
- US residential solar financing volume reached $15 billion in 2023, up 28% YoY
- Florida's residential solar installations surged 50% in 2023 to 800 MW
- Texas residential solar grew 40% to 600 MW in 2023 despite grid challenges
- Residential solar in the UK installed 1.2 GW in 2023, doubling from 2022
- Brazil's residential solar added 2.5 GW in 2023, leading Latin America
- Cumulative US residential solar capacity exceeded 25 GW by end of 2023
- Asia-Pacific residential solar market share is 55% of global in 2023
- Residential solar job creation in US reached 12,000 direct jobs in 2023
- Global residential solar capacity forecast to grow at 12% CAGR to 2030
- In 2023, Arizona residential solar installations totaled 450 MW, up 25% YoY
- Nevada residential solar market rebounded 30% to 300 MW in 2023 post-net metering changes
- Residential solar penetration in Hawaii reached 20% of households by 2023
- Massachusetts added 250 MW residential solar in 2023, growing 15%
- New Jersey residential solar hit 400 MW in 2023, up 20%
- Cumulative global residential solar installations surpassed 200 GW by 2023
- US residential solar represented 60% of distributed solar additions in 2023
- South Korea residential solar grew 18% to 1 GW in 2023
- Residential solar market in China added 15 GW in 2023, 40% of global
- By mid-2024, US residential solar pipeline exceeded 10 GW
Market Growth Interpretation
Policy and Incentives
- Residential solar ITC extended 30% through 2032 under IRA 2022
- 43 US states offered residential solar rebates or incentives in 2023
- California's SGIP provided $1,000/kWh for low-income residential storage 2023
- NEM 2.0 legacy systems comprised 70% of CA residential solar in 2023
- Federal 30% ITC claimed by 1.2 million residential solar households since 2023 IRA
- New York's NY-Sun program funded 10,000 residential installs worth $200M in 2023
- Massachusetts SMART program paid $0.268/W average for residential solar 2023
- Florida's net metering allowed full retail credit for residential exports until 2023 changes
- IRA direct pay option enabled non-profits 100% ITC for residential solar 2023
- 27 states had residential solar carve-outs in RPS policies by 2023
- Hawaii's 100% RPS drove residential solar to 20% penetration via incentives 2023
- Colorado's renewable energy standard included residential solar credits at 1.25x multiplier 2023
- Australia's SRES created 15 GW residential solar certificates by 2023
- Germany's EEG feed-in tariff paid €0.08/kWh for residential solar <10kW in 2023
- India's PM Surya Ghar scheme allocated $1.2B for 10M residential solar roofs 2023-2027
- UK's SEG paid up to £0.15/kWh export for residential solar 2023
- Texas streamlined residential solar interconnections via SB7 deregulation 2023
- IRA's 30C efficiency credits stacked with solar ITC for $3,200/home avg 2023
- 15 states banned or restricted HOA solar restrictions by 2023 laws
- New Jersey's SRECs valued $90/certificate for residential solar 2023
- Virtual net metering enabled multifamily residential sharing in 12 states 2023
- Low-income residential solar pilots funded $500M federally via IRA 2023
Policy and Incentives Interpretation
Technology and Performance
- Average residential solar panel efficiency reached 20.5% in 2023 deployments
- Bifacial panels comprised 30% of new residential solar installs in 2023, boosting yield 10%
- Home battery capacity paired with solar averaged 13 kWh per system in 2023
- Microinverter market share hit 65% in US residential solar in 2023 for better performance
- Residential solar systems achieved 98% uptime in 2023 monitoring data
- PERC module degradation rate averaged 0.4%/year in 10-year residential data 2023
- Smart optimizers improved residential solar yield by 15% under shading in 2023 tests
- Residential solar + storage self-consumption rates reached 85% in 2023 VPP programs
- TOPCon modules entered 10% of residential market in late 2023 with 22% efficiency
- DC-coupled storage systems gained 40% share in new residential installs 2023
- Residential panels produced 1,600 kWh/kW annually in average US conditions 2023
- Enphase IQ8 microinverters enabled 100% grid-forming for residential backup 2023
- Bifacial gain averaged 12% in low-albedo residential roofs per 2023 NREL study
- Residential VPP participation grew to 50,000 systems in CA by 2023, dispatchable 2 GW
- HJT cells hit 23.5% efficiency in residential products sampled 2023
- Solar + heat pump combos saved 40% on heating costs in 2023 pilots
- Residential monitoring apps showed 2% annual performance ratio improvement 2018-2023
- 50% of 2023 residential installs used 400W+ high-power modules
- Tesla Powerwall 3 cycle life rated 4,000 cycles at 100% DoD in 2023 specs
- Rapid shutdown compliance 100% in UL-listed residential systems 2023
- Residential solar irradiance forecasting accuracy 95% via AI in 2023 apps
- String inverters lost 5% market share to MLPE in residential 2023
- Residential systems with trackers yielded 25% more in ground-mount setups 2023
- Degradation warranty claims under 0.1% for Tier 1 panels in residential fleets 2023
- EV bi-directional charging pilots with solar achieved 90% round-trip efficiency 2023
- Residential agrivoltaics pilots showed 10% dual-use yield increase 2023
- Software DC sizing optimized residential systems 8% cheaper 2023
- 2024 residential panels averaging 405W with 21% efficiency standard
Technology and Performance Interpretation
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