Big Sun Solar

What Big Sun Solar does

Big Sun Solar is a Texas-based commercial solar engineering, procurement, and construction (EPC) firm headquartered in San Antonio with an additional office in Austin. Founded in 2015 (previously operating as Go Smart Solar LLC) by Robert Miggins and Jason Pittman, the company designs, installs, and services rooftop, ground-mount, and solar canopy photovoltaic systems, plus battery energy storage, for commercial, nonprofit, municipal, and utility customers across Texas.

The company's core offering is end-to-end commercial solar installation executed by in-house NABCEP-certified engineering and construction teams, complemented by performance monitoring, annual inspections, inverter service, and optional panel cleaning as recurring post-installation services. It also structures third-party-owned Power Purchase Agreements (PPAs) in utility territories that permit them (for example, via a 3-party PPA with GVEC and Vitesco Technologies), provides sustainability/ESG reporting, and operates a community solar waitlist program through CPS Energy. Pricing is quote-based, typically $2-4 per watt before incentives, with reported commercial payback periods of 4-7 years after the 30% federal Investment Tax Credit and depreciation benefits.

Big Sun Solar goes to market through direct enterprise field sales targeting manufacturers, auto dealers, nonprofits, multi-family and hotel operators, office and self-storage owners, and public-sector buyers including school districts (via the TIPS cooperative purchasing program), municipalities, and utilities. Major contract wins include the $30 million City of San Antonio onsite solar project (the largest municipality project in Texas and second-largest in the US), a 5,200-panel solar canopy at El Paso International Airport funded by FAA and DOE grants, and projects for Safran Helicopter Engines, H-E-B, Cavender Auto Group, Ancira Auto Group, and Vitesco Technologies. The company holds SOC 2 Type II, NABCEP PVIP, NABCEP ESIP, TECL #32590, and Texas PACE Authority credentials, and pursues a 1% Pledge carbon-neutrality-by-2025 commitment.

Name

Big Sun Solar

Legal name

Big Sun Solar LLC

Website

https://bigsunsolar.com

Company type

Private

Founded year

2015

Operating status

Operating

Headcount range

11–50 employees

Short description

Big Sun Solar is a Texas-based commercial solar EPC firm that designs, installs, and services rooftop, ground-mount, and solar canopy photovoltaic systems with battery storage for manufacturers, auto dealers, nonprofits, municipalities, and utilities across Texas.

Ownership category

akta.pro rank

Product category

Commercial Solar Installation Services

NAICS

Utility System Construction (2371)

SIC

Electrical Work (1731)

akta.pro primary industry

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

akta.pro secondary industries

Solar Roofing & Roof-Mounted PV Systems (IMADAFAO), Solar Mounting, Racking & Trackers (Fixed-Tilt, Single/Dual-Axis, Rooftop Mounts) (EUAMABAF), Solar Financing, Leasing & Ownership Platforms (Tax Equity, PPA, Securitization) (EUAMABAJ), Solar Balance-of-System Components (Cables, Combiner Boxes, Switchgear, Transformers) (EUAMABAG)

Keywords

• Commercial solar installation
• Battery energy storage
• Solar canopies
• Power purchase agreements
• Community solar programs

Headquarters

HQ city

San Antonio

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Solar Installation Services: Design, engineering, permitting, installation, and interconnection services for commercial solar systems. Revenue generated from project installation fees based on system size (typically $2-4 per watt before incentives).
2. Power Purchase Agreements (PPA): Third-party owned solar projects where Big Sun Solar owns and operates the system while customers purchase the electricity generated. Available in some utility territories with 3-party agreements.
3. Ongoing Monitoring and Maintenance: Recurring monitoring services, annual inspections, inverter service, and optional panel cleaning to maintain system performance.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels9 records

Core offering

Big Sun Solar designs, engineers, permits, installs, and commissions commercial-scale solar photovoltaic systems for Texas businesses, nonprofits, municipalities, schools, and utilities. Offerings span rooftop arrays, ground-mount systems, and parking-lot solar canopies, with battery energy storage, ongoing performance monitoring, and optional power purchase agreement (PPA) financing structures.

Product overview

Big Sun Solar is a Texas-based commercial solar installation company offering a unified portfolio of solar products and services. The core offering consists of Commercial Solar Installation services, which include rooftop, ground-mount, and solar canopy systems. The company also offers Battery Storage as an add-on module for demand charge reduction and backup power. Additional services include Sustainability Reporting for ESG tracking and a Community Solar Program for residential customers. The products work together to provide comprehensive solar energy solutions for commercial businesses, municipalities, nonprofits, and utility partners across Texas.

Differentiator

Problem solved

Functional benefit

Products and services

• Commercial Solar Installation (Rooftop and Ground-Mount) End-to-end commercial solar PV installation services for Texas businesses and institutions, including site assessment, in-house engineering, permitting, construction, and interconnection with the utility grid. Systems are delivered as rooftop arrays or ground-mount arrays, sized to offset commercial electricity consumption.
• Solar Canopies (Solar Carports) Parking-lot canopy structures that support solar panels to provide shaded parking while generating electricity. Targets airports, auto dealerships, hotels, and commercial properties; lowers insurance premiums by protecting vehicles and inventory from hail and heat.
• Battery Energy Storage Systems (BESS) Battery Energy Storage Systems that store solar energy for later use, enabling peak shaving, demand-charge reduction, and backup power capabilities for commercial and institutional customers.
• Power Purchase Agreements (PPA) Third-party owned solar project structures in eligible utility territories (for example, via 3-party PPAs with GVEC), in which Big Sun Solar owns and operates the system while the customer purchases the electricity generated.
• Performance Monitoring and Maintenance Services Recurring performance monitoring, annual system inspections, inverter servicing, and optional panel cleaning to maintain expected system performance over the asset's lifetime.
• Sustainability Reporting ESG and sustainability reporting services that help businesses track carbon reduction, energy savings, and environmental impact metrics generated from their solar installations.
• Community Solar Program

Quantifiable outcome

• Reduces payback period to 4-7 years for Texas commercial systems depending on utility territory, size, and incentives
• +4 more outcomes

Named customers15 records

Segments8 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Eight partnerships are on record, tiered core and minor.

• CPS EnergycoreStrategic or Co-development PartnerSelected by CPS Energy for largest community solar program in Texas. In CPS Energy territory, customers are generally required to directly own the solar system, and third party owned PPAs are not permitted. CPS Energy offers rebates and interconnection for commercial customers.
• Austin EnergycoreStrategic or Co-development PartnerRegistered and approved Austin Energy commercial solar contractor. Offers Performance Based Incentive (PBI), Value of Solar (VoS) rate, and Solar Standard Offer Program for commercial customers. Big Sun Solar manages full process from engineering and application to interconnection and verification.
• Guadalupe Valley Electric Cooperative (GVEC)coreStrategic or Co-development PartnerApproved 3-party power purchase agreement (PPA) with Big Sun Solar and Vitesco Technologies. GVEC enables the PPA structure that allows Vitesco to purchase electricity from Big Sun Solar's solar project to offset their energy consumption.
• Ready to WorkminorStrategic or Co-development PartnerWorkforce development program that Big Sun Solar actively participates in for recruiting talent. Part of company's commitment to building meaningful jobs in San Antonio.
• Venture for AmericaminorStrategic or Co-development PartnerTalent recruitment partnership program for building meaningful jobs in San Antonio.
• Students and StartupsminorStrategic or Co-development PartnerTalent recruitment partnership for recruiting from local startup and student programs in San Antonio.
• Silver Ventures and PearlminorStrategic or Co-development PartnerPartnership with Silver Ventures and Pearl for Full Goods Building solar repower project, donating solar equipment to Alamo College District St. Philip's College Power Generation and Alternative Energy program.
• TIPS (Texas Public Schools)coreChannel Partner/ Reseller/ DistributorPre-negotiated solar pricing for Texas Public Schools through TIPS (Texas Education Agency's cooperative purchasing program). Allows school districts to access Big Sun Solar services through established procurement contracts.

Scale indicators8 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Borrego Solar: National commercial and utility-scale solar EPC with in-house engineering, construction, and O&M services; comparable to Big Sun's vertically integrated model but at significantly larger scale across multiple states.
• Baker Renewable Energy: California-based commercial and residential solar EPC with in-house design, installation, and NABCEP-certified teams; comparable vertically integrated model focused on commercial customers.
• Longhorn Solar: Texas-focused solar EPC with both residential and commercial offerings, competing for the same local commercial customer base and incentive-driven demand Big Sun targets.
• Renu Energy Solutions: Regional commercial and residential solar EPC with NABCEP-certified installers offering solar + battery storage; comparable operating model and product set but serves the Carolinas rather than Texas.
• NATIVE Solar: Austin-based commercial and residential solar EPC operating across Texas with a similar end-to-end installation model and focus on Texas-specific incentives — directly comparable as a same-state competitor targeting overlapping commercial segments.
• TriSMART Solar: Texas-based commercial solar installer providing design, installation, and maintenance to businesses, municipalities, and nonprofits in the same core verticals (manufacturing, schools, government) as Big Sun Solar.

Regional players

• ReVision Energy: Northeast U.S.-based employee-owned commercial and residential solar installer; similar in-house engineering/construction model and NABCEP-certified approach but geographically non-overlapping.

Broad incumbents

• Tesla Energy: Large diversified solar, battery storage, and energy products provider; overlaps with Big Sun on commercial-scale solar and storage deployments but is a broad incumbent rather than a Texas-focused commercial specialist.
• Freedom Forever: National solar installer with growing commercial presence; competes with Big Sun on commercial solar installs but is significantly larger and primarily residential-led.
• SunPower (Commercial): National solar provider with a commercial division offering rooftop and ground-mount systems plus storage; competes with Big Sun on commercial installs but at significantly broader geographic and product scope.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xtwitter.com/bigsunsolar
• Facebookfacebook.com/bigsunsolar
• LinkedInlinkedin.com/company/big-sun-solar
• Instagraminstagram.com/bigsunsolar

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 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 Big Sun Solar