Updated: Aug 27, 2025
Location and Projects
Address
3979 E Guasti Rd, Ontario, CA, 91761
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Sun Power Corporation Solar Contractor
Sun Power Corporation at 3979 E Guasti Rd, Ontario, CA 91761, has a BuildZoom score of 103 and ranks in the top 10% of 336,931 California contractors.
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Sun Power Corporation Contact Information
Address: 3979 E Guasti Rd, Ontario, CA 91761
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Sun Power Corporation Ontario
Quality
103
90th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Sun Power Corporation has a BuildZoom score of 103, which places them above 90% of 336,931 contractors in California.
Activity
|
2 projects
|
2025 |
|
7 projects
|
2024 |
|
12 projects
|
2023 |
Our building permit records indicate that Sun Power Corporation has worked on at least
21.0 projects over the past 3 years.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Experience
|
18 projects
|
Solar installations |
Analyzing permits over the last 4 years shows that Sun Power Corporation mostly works on
solar installation
projects.
Pricing
|
6 projects
|
$5k-$20k |
|
4 projects
|
$20k-$50k |
The typical size of their permits is approximately $16,000. This graph shows the distribution of these job values.
Pro tip:
For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.
Building Permits by Sun Power Corporation
This is a sample of this contractor's permits. Click here to access their complete permit history.
Install 8.8 kw roof mounted photovoltaic system with 22 modules microinverters 1 load center 450 sf.**permit revised on 2/18/22 to reflect the revised scope of the project.**
Valuation:
$24,000
Permit #:
RESB-11-21-50668
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Miscellaneous (bxx) - othcn - other construction
2025-08-16
New energy storage system - 2 battery enphase iq battery - 5p-1p-na. 10kwh each
Valuation:
N/A
Permit #:
BXX2500930
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Miscellaneous (bxx) - othcn - other construction
2025-08-27
Energy storage system 10 kwh battery backup iqbattery 5p 1p na
Valuation:
N/A
Permit #:
BXX2500614
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install 12.75 kw roof mounted photovoltaic system (635 sqft) with 30 modules 30 microinverters 100 amp load center
Valuation:
$30,000
Permit #:
RESB-12-21-51132
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Roof mount 17 panels 6.800kw 100a load center no mpu smoke and carbon monoxide ltr due at final wmp req'd before final
Valuation:
$17,000
Permit #:
2023-232
Status:
final
Fee:
$446
Permit Type:
N/A
Building Type:
N/A
Install 4.68 kw roof mounted photovoltaic system (233 sqft) with 11 modules 1 inverter 100 amp load center
Valuation:
$15,000
Permit #:
RESB-12-21-51133
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install 5.52 kw roof mounted photovoltaic system (286 sqft) with 16 modules 16 microinverters 1 load center (100 amps) to (e) solar system
Valuation:
$20,000
Permit #:
RESB-10-21-49816
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install 6.80 kw roof mounted photovoltaic system with 17 modules microinverters 1 load center upgrade main panel to 225 a 348 sf
Valuation:
$17,000
Permit #:
RESB-01-21-44850
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install 5.25 kw roof mounted photovoltaic system (238 sqft) with (15) modules (15) microinverters (1) 100 amp load center
Valuation:
$15,000
Permit #:
RESB-10-21-50168
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install 5.25 kw roof mounted photovoltaic system (268 sqft) with (15) modules (15) microinverters (1) 100 amp load center
Valuation:
$15,000
Permit #:
RESB-10-21-50164
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install 5.25 kw roof mounted photovoltaic system (268 sqft) with 15 modules 15 microinverters 100 amp load center.**
Valuation:
$15,000
Permit #:
RESB-09-21-49597
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install 5.46 kw roof mounted photovoltaic system (261 sqft) with 13 modules 13 microinverters
Valuation:
$20,000
Permit #:
RESB-09-21-49522
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install 4.20 kw roof mounted photovoltaic system (215 sqft) with 12 modules 12 microinverters
Valuation:
$12,000
Permit #:
RESB-11-21-50584
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install 4.20 kw roof mounted photovoltaic system (215 sqft) with 12 modules 12 microinverters
Valuation:
$12,000
Permit #:
RESB-11-21-50583
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install 4.20 kw roof mounted photovoltaic system (215 sqft) with 12 modules 12 microinverters
Valuation:
$12,000
Permit #:
RESB-09-21-49596
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install 4.92 kw roof mounted photovoltaic system with 12 modules microinverters 204 sf
Valuation:
$12,000
Permit #:
RESB-05-21-47205
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install 3.24 kw roof mounted photovoltaic system with 9 modules microinverters 161 sf
Valuation:
$12,000
Permit #:
RESB-05-21-47204
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Navani residence: installation of roof mounted photovoltaic system- 9
Valuation:
$25,600
Permit #:
B-SO20-0176
Status:
final
Fee:
$593
Permit Type:
Solar panel
Building Type:
N/A
Install 7.38 kw roof mounted photovoltaic system with 18 modules microinverters 1 load center 368 sf. **10/29/21 revise: addition (1) energy storage system (13 kwh) remove load center install 200 amp hub**
Valuation:
$18,000
Permit #:
RESB-06-21-47848
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Photovoltaic system
Valuation:
$30,360
Permit #:
B23-03580
Status:
final
Fee:
$456
Permit Type:
Solar panels-phot...
Building Type:
N/A
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Sun Power Corporation Reviews
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Recent Buildzoom Projects
Sun Power Corporation License info
License Not Required
| Status | Not Required |
- BuildZoom verified in November, 2024 that this contractor does not need a license to be a contractor in California.
This is a sample of licensing data; click here to access a complete history.
103
BuildZoom Score
50
Permits
- Building permit records show that Sun Power Corporation has worked on 50 permitted projects.