SIG Solar

What SIG Solar does

SIG Solar, legally Solar Installation Group Inc., is a family-owned solar photovoltaic (PV) installation contractor founded in 2013 by the Kerr family in Oakdale, California. The company designs, sells, and installs grid-tied solar PV systems for three customer verticals: residential homeowners, commercial businesses, and agricultural operations (dairies, vineyards, crop farms) across Northern California, with a core service area in Stanislaus County and surrounding communities. SIG Solar is a certified installer of major battery storage platforms including Tesla PowerWall 3, Enphase IQ Battery 10C, Franklin a/Power 2, and EcoFlow, and exclusively specifies American-made PV components.

The company operates an in-house, non-subcontracted installation and service model, with a dedicated service center in Oakdale and a sales team offering free consultations, custom system design, and full permitting and PG&E utility interconnection support. It monetizes through one-time installation fees, Power Purchase Agreements (PPAs) with zero upfront cost to the customer, low-interest solar loans, and direct purchase with eligibility for the 30% Federal Investment Tax Credit. Pricing is unit-based, with sample residential systems at roughly $18.7K gross for 4.02 kW and commercial ROI typically achieved in 3-7 years.

SIG Solar is a privately held, family-controlled business with no institutional investors, no parent company, and no disclosed funding rounds. It holds California Contractor License #997639 and has been recognized with regional Readers' Choice and Best of 209 awards in 2020-2022. Revenue, headcount trends, and project pipeline are not publicly disclosed; the company competes on local reputation, family-operated service quality, transferable 25-year workmanship warranties, and multi-brand battery integration rather than on proprietary technology or scale.

Name

SIG Solar

Legal name

Solar Installation Group Inc.

Website

https://sig.solar

Company type

Private

Founded year

2013

Operating status

Operating

Headcount range

11–50 employees

Short description

SIG Solar is a family-owned solar PV installation contractor in Oakdale, California, designing and installing residential, commercial, and agricultural solar systems across Northern California with in-house crews and certified battery storage integration.

Ownership category

akta.pro rank

Product category

Solar Installation Services

NAICS

Solar Electric Power Generation (221114)

akta.pro industry

PRIMARYEUAMABAB

Solar EPC & Construction (Utility-Scale, Rooftop, Balance of System)

Energy, Utilities & Environment/Renewable Energy (Solar, Wind, Hydro & Geothermal)/Solar Energy (PV, CSP, Rooftop & Utility-Scale)

SECONDARYIMADAFAO

Solar Roofing & Roof-Mounted PV Systems

Industrials, Manufacturing & Construction/Building Materials & Products/Roofing Materials & Systems

SECONDARYEUAMABAJ

Solar Financing, Leasing & Ownership Platforms (Tax Equity, PPA, Securitization)

Energy, Utilities & Environment/Renewable Energy (Solar, Wind, Hydro & Geothermal)/Solar Energy (PV, CSP, Rooftop & Utility-Scale)

Keywords

• Solar installation services
• Residential solar
• Commercial solar
• Agricultural solar
• Battery storage systems

Headquarters

HQ city

Oakdale

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Personnel, Supply Chain, Operations, Marketing or Sales, Technology or R&D

Revenue model

1. Solar Installation Services: Direct installation of solar panel systems for residential, commercial, and agricultural customers. Revenue is generated through one-time installation fees, with options for direct purchase, solar loans, or PPA arrangements.
2. Power Purchase Agreement (PPA): Customers pay only for electricity generated at a fixed rate lower than utility costs, with zero upfront costs. SIG Solar installs and maintains the system while customers pay for energy consumption.
3. Solar Loans: Financing option allowing customers to spread costs over time with low-interest loans while retaining system ownership and tax incentives.
4. Battery Storage Systems: Installation and integration of battery backup systems including Tesla PowerWall, Enphase, Franklin, and EcoFlow products as certified installer.
5. Service and Maintenance: Ongoing service, monitoring, and support for installed solar systems, including troubleshooting, warranty support, and performance optimization.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels7 records

Core offering

SIG Solar designs, sells, and installs grid-tied solar photovoltaic systems for residential, commercial, and agricultural customers in Northern California. The company also integrates certified battery storage systems and offers financing options including Power Purchase Agreements (PPAs), solar loans, and direct purchase.

Differentiator

Problem solved

Functional benefit

Products and services

• Residential Solar Installation Custom-designed solar panel installation services for single-family homes in Northern California, intended to reduce or eliminate electricity bills, increase property value, and enable battery backup integration.
• Commercial Solar Installation Custom solar PV system design and installation for commercial facilities such as retail, hospitality, and manufacturing, intended to lower operating costs, capture the 30% federal tax credit, and typically achieve ROI within 3–7 years.
• Agricultural Solar Installation High-capacity solar systems for farms, dairies, vineyards, and crop operations, including ground-mount and rooftop installations with battery storage to power irrigation, equipment, and refrigeration, often in remote locations.
• Battery Storage Systems Certified installer of backup battery and energy storage systems including Tesla PowerWall 3, Enphase IQ Battery 10C, Franklin a/Power 2, and EcoFlow for residential and commercial backup power and energy independence.
• Solar Maintenance and Service Ongoing in-house service, troubleshooting, performance monitoring, and warranty support for installed SIG Solar systems, including 25-year workmanship warranty coverage.
• Solar Financing Options (PPA, Solar Loans, Direct Purchase) Customer financing products for solar installations: Power Purchase Agreements (zero upfront, monthly per-kWh payments), low-interest solar loans (customer retains ownership and tax incentives), and direct purchase (maximizes long-term savings and federal tax credits).

Quantifiable outcome

• 60% reduction in energy costs for dairy farm operations
• +5 more outcomes

Named customers8 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Five partnerships are on record, tiered core.

• TeslacoreTechnology or IntegrationSIG Solar is a certified installer of Tesla PowerWall 3 battery systems for residential and commercial backup power and energy storage solutions.
• EnphasecoreTechnology or IntegrationCertified installer of Enphase IQ Battery 10C products for solar energy storage and backup power applications.
• FranklincoreTechnology or IntegrationCertified installer of Franklin a/Power 2 battery storage systems for home backup power solutions.
• EcoFlowcoreTechnology or IntegrationCertified installer of EcoFlow battery storage and portable power solutions for solar applications.
• PG&EcoreOthersPartnership with Pacific Gas and Electric for grid interconnection, net metering, and utility coordination for solar installations in Northern California service area.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Trinity Solar: Large U.S. residential solar installer with multi-state operations and in-house sales/installation teams, similar vertically integrated model. Comparable in GTM motion and customer mix.
• Sunrun: National residential solar installer and PPA originator offering solar and battery storage across the U.S., including California. Directly comparable to SIG Solar's residential and PPA business model.
• Blue Raven Solar: Residential solar installer with BluePower+ financing offering initial low payments; serves multiple Western U.S. states including California. Competes for the same residential homeowner customer.
• ADT Solar (formerly Sunpro Solar): National residential solar installer with operations in California offering solar and battery systems with multiple financing options, including PPA-like structures. Direct overlap on residential and battery-attached projects.
• Momentum Solar: Residential solar installer operating in California with in-house installation crews and battery storage offerings (including Enphase IQ and Tesla Powerwall). Comparable vertically integrated regional installer.
• Tesla Energy: Sells solar roof, solar panels, and Powerwall directly and through certified installers in California. Competitor for the same residential and commercial storage-attached solar projects SIG targets.
• SunPower (Complete Solar / Maxeon): Long-standing residential and commercial solar installer operating in California with direct-purchase, loan, and PPA/PACE financing options. Direct competitor across SIG's core segments.

Others

• Enphase Energy: Manufacturer of microinverters and the IQ Battery line; SIG Solar is an Enphase-certified installer. Enphase is a technology partner/supplier rather than direct competitor, but increasingly enables direct-to-consumer models.

Regional players

• Baker Electric Home Energy: Southern California-headquartered residential and commercial solar and battery installer with custom system design. Comparable regional California installer targeting similar homeowner/business customers.
• Semper Solaris: California-based residential and commercial solar installer with battery storage offerings, serving Northern and Southern California. Closest like-for-like regional competitor to SIG Solar.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks1 record

Key highlights7 records

Customer concentration

• Facebookfacebook.com/SolarInstallationGroup
• LinkedInlinkedin.com/company/solar-installation-group-inc.
• Instagraminstagram.com/sig.solar
• Xx.com/sigsolarca

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about SIG Solar