CitiGreen Inc

What CitiGreen Inc does

CitiGreen Inc is a privately-held commercial solar developer and EPC contractor founded in 2001 by Mark Frederick in Auburn, California, specializing in commercial-scale photovoltaic (PV) systems across PG&E territory in Northern California with select installations in Hawaii. The company delivers turnkey solutions spanning site assessment with LiDAR-based shading analysis, system design using proprietary in-house software (including tariff-specific TOU modeling and dollar-denominated performance monitoring), financing structuring, construction with American-made equipment, and long-term operations and maintenance under 25-year warranties. CitiGreen's core business model combines one-time installation revenue with recurring PPA-based electricity sales, complemented by a 2025-launched marketplace for transferable federal Section 48E Investment Tax Credits sold at $0.75 per dollar to tax-equity buyers.

Revenue is generated across five streams: upfront commercial solar installation (one-time), long-term Power Purchase Agreements (subscription), ITC transferability fees, equipment loan and tax-lease facilitation (managed services), and an emerging SolarH2 LLC subsidiary focused on solar-powered PEM-electrolyzer green hydrogen production targeting fleet and industrial buyers under Section 45V. Customer segments are vertically diversified across owner-occupied commercial businesses, commercial landlords, non-profits, agriculture, and nascent transportation/industrial hydrogen buyers, with named installations including Hanlees Auto Group (1.25 MW across 10 sites), Micro-Mechanics (791 kW), A-1 Jay's Machining (664 kW across 3 sites), and Koloa Landing Resort (300 kW). Distribution is exclusively direct, combining inside sales with regional field advisors (Bay Area and Northern California/Sacramento) plus referral pipelines through a formalized Collaborators program with seven industry associations including NAIOP and the Sacramento Regional Builders Exchange.

The company operates on an enterprise field-sales GTM with free consultations, side-by-side 2025-vs-2026 Safe Harbor urgency marketing, and time-deadline incentive positioning tied to the July 4, 2026 federal tax credit regime. Equipment sourcing is anchored by FEOC-compliant partnerships with QCELLS and Hyundai, an increasingly critical compliance constraint under current Department of Energy rules. With only 1-10 employees and no institutional funding rounds disclosed, CitiGreen runs a lean, founder-led operating model relying heavily on subcontracted installation capacity while retaining design, financing, asset management, and regulatory expertise in-house.

Name

CitiGreen Inc

Legal name

CitiGreen Inc.

Website

https://citigreeninc.com

Company type

Private

Founded year

2001

Operating status

Operating

Headcount range

1–10 employees

Short description

CitiGreen Inc is a privately-held commercial solar EPC founded in 2001 in Auburn, California, designing, financing, and installing commercial PV systems across Northern California (PG&E territory) with diversifying expansion into Hawaii. The company serves owner-occupied businesses, landlords, non-profits, and agriculture customers through PPAs, tax-lease, and PACE financing, and has launched a SolarH2 green hydrogen subsidiary.

Ownership category

akta.pro rank

Product category

Commercial Solar Installation Services

NAICS

Solar Electric Power Generation (221114)

SIC

Electric Services (4911)

akta.pro primary industry

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

akta.pro secondary industries

Solar PV Power Plant EPC (Utility-Scale) (EUAEAAAG), Solar Design, Engineering & Performance Software (PV Modeling, Digital Twins, Monitoring) (EUAMABAH), Solar Financing, Leasing & Ownership Platforms (Tax Equity, PPA, Securitization) (EUAMABAJ)

Keywords

• Commercial solar installation
• Solar energy systems
• Green hydrogen production
• Solar financing solutions
• Solar operations maintenance

Headquarters

HQ city

Causeway Bay

HQ country

Hong Kong SAR China

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Commercial Solar Installation: CitiGreen designs, engineers, constructs, and commissions commercial solar PV systems for businesses. Revenue is generated through upfront system sales and installation fees. The company provides turnkey solutions including permitting, interconnection, and long-term maintenance.
2. Power Purchase Agreement (PPA): CitiGreen purchases, develops, owns, and operates solar energy facilities and sells solar-generated electricity to host customers through long-term PPAs. This provides recurring revenue from electricity sales without upfront cost to customers.
3. Tax Credit Transferability: CitiGreen offers verified 48E federal Investment Tax Credits generated from completed commercial solar projects for sale to qualified buyers. Credits are sold at a discounted rate ($0.75 per dollar), providing upfront capital to CitiGreen while allowing buyers to reduce tax liability dollar-for-dollar.
4. Equipment and Tax Lease Financing: Facilitates equipment loans and tax lease arrangements for commercial solar installations, potentially generating fees from financing partnerships.
5. Green Hydrogen Production (SolarH2): SolarH2 subsidiary develops solar-powered hydrogen production facilities. Revenue will be generated through sale of hydrogen to commercial and industrial users, primarily for fleet fueling and offsite delivery, supported by federal Section 45V tax credits.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels7 records

Core offering

CitiGreen designs, engineers, finances, installs, and maintains commercial-scale solar PV systems for owner-occupied businesses, landlords, non-profits, and agricultural operations across Northern California's PG&E territory. Through its SolarH2 subsidiary, the company also develops solar-powered green hydrogen production facilities using PEM electrolyzers to supply low-carbon hydrogen for transportation and industrial use.

Product overview

CitiGreen Inc is a commercial solar solutions provider offering an integrated portfolio of products and services. The core offerings include Commercial Solar Systems (design, financing, construction, and maintenance) and SolarH2 (green hydrogen production using solar-powered electrolysis). The company provides multiple financing products including Power Purchase Agreements (PPAs), Tax Leases, PACE, Equipment Loans, and Outright Purchase options. Supporting services include system design with proprietary software, professional construction with commercial-grade equipment warranties, and comprehensive Operations & Maintenance programs. Additionally, the company offers transferable 48E Federal Tax Credits and operates a Collaborators partnership program. The portfolio serves commercial properties across PG&E territory in California, targeting owner-occupied businesses, landlords, non-profits, and agricultural operations.

Differentiator

Problem solved

Functional benefit

Brands

• SolarH2: Solar-powered green hydrogen production subsidiary developing renewable hydrogen facilities in Northern California using dedicated solar energy to produce low-carbon hydrogen for transportation, industrial, and energy applications.

Products and services

• Commercial Solar Systems High-performance commercial solar PV systems for owner-occupied businesses, landlords, non-profits, and agricultural operations, including rooftop, ground-mounted, and carport configurations. End-to-end service from design and engineering through financing, construction, commissioning, and long-term maintenance.
• SolarH2 Green Hydrogen Production Solar-powered green hydrogen production facility using PEM electrolyzers to convert dedicated solar generation into renewable hydrogen for fleet fueling, industrial users, and energy storage applications. Each facility produces roughly 110,000 kg of hydrogen per year, supported by federal Section 45V tax credits.
• Solar System Design Services Custom solar system engineering including system sizing, structural and electrical (DC/AC) engineering, permitting support, LiDAR-based shading analysis, and time-of-use tariff modeling to optimize output against actual operating hours.
• Solar Construction Services Professional solar installation delivered by certified crews with flexible, non-disruptive scheduling. Includes rooftop, ground-mount, and carport installation work, with 25-year equipment warranties on commercial-grade American-made components.
• Solar Operations and Maintenance (O&M) Ongoing solar system support including commissioning, preventative maintenance, corrective maintenance, continuous asset management monitoring, and cleaning services. Cleaning has been shown to increase annual energy production by 5-10% in dry-season climates.
• Transferable 48E Federal Tax Credits Verified federal Section 48E Clean Energy Investment Tax Credits generated from completed CitiGreen commercial solar projects, sold to qualified buyers at a discounted rate ($0.75 per dollar of credit). Minimum purchase $50,000 ($25,000 for individuals), with each dollar purchased reducing federal tax liability dollar-for-dollar.

Quantifiable outcome

• Energy cost savings of 20-50% for businesses in PG&E territory
• +5 more outcomes

Named customers9 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Ten partnerships are on record, tiered minor and core.

• NAIOP SacramentominorGTM or Marketing PartnerPartnership with NAIOP Sacramento chapter, a commercial real estate association. CitiGreen collaborates with NAIOP for networking events and lead generation within the commercial property sector.
• NAIOP San Francisco Bay AreaminorGTM or Marketing PartnerPartnership with NAIOP San Francisco Bay Area chapter for commercial real estate networking and solar solution promotion to members.
• EBMG (Energy Business Management Group)minorGTM or Marketing PartnerCollaboration with Energy Business Management Group for industry networking and energy solution promotion.
• MFANC (Manufacturer's Association of Northern California)minorGTM or Marketing PartnerPartnership with MFANC for manufacturer outreach and commercial solar solution promotion to industrial businesses.
• PowerInn (Sacramento Area Regional Energy Alliance)minorGTM or Marketing PartnerCollaboration with PowerInn, a Sacramento area regional energy alliance, for energy infrastructure promotion and member referrals.
• ACRE (Sacramento Regional Builders Exchange)minorGTM or Marketing PartnerPartnership with Sacramento Regional Builders Exchange for construction industry networking and solar project referrals.
• SRBX (Sacramento Regional Construction Management Association)minorGTM or Marketing PartnerCollaboration with Sacramento Regional Construction Management Association for industry connections and project referrals.
• QCELLScoreTechnology or IntegrationEquipment partner providing solar modules. QCELLS is fully compliant with current FEOC (Foreign Entity of Concern) regulations under today's rules. The partnership provides domestic solar equipment for CitiGreen's commercial installations.
• HyundaicoreTechnology or IntegrationEquipment partner providing solar components. Hyundai is fully compliant with current FEOC regulations. Partnership ensures access to verified FEOC-compliant equipment for tax credit qualification.
• SolarH2 LLCcoreStrategic or Co-development PartnerSolarH2 LLC is an affiliated company developing solar-powered green hydrogen production facilities. This represents CitiGreen's next phase of renewable energy development, combining solar generation with hydrogen production through electrolysis for transportation and industrial applications.

Scale indicators10 records

Recent moves7 records

Expansion highlights6 records

Emerging players

• Plug Power: Plug Power is a green hydrogen producer and fuel-cell developer. While not a solar EPC, it represents the downstream hydrogen end-market CitiGreen's SolarH2 subsidiary targets, making it thematically comparable for the hydrogen vertical.

Direct peers

• Catalyze: Catalyze develops, owns, and operates commercial and industrial solar and storage projects using PPA and tax-lease structures. Its financing-led, on-bill approach mirrors CitiGreen's no-money-down model for commercial property owners.
• Pivot Energy: Pivot Energy is a national commercial and community solar developer offering PPA financing, ITC monetization, and full EPC services. Comparable to CitiGreen in its vertically integrated approach and use of tax-credit transferability.
• Borrego Solar: Borrego Solar is a commercial and utility-scale solar EPC and developer focused on distributed-generation projects across multiple U.S. states. Like CitiGreen, it offers turnkey design, financing (PPAs), and O&M services to commercial customers, making it a close operational comparator.
• Baker Electric Home Energy: Baker Electric is a Southern California commercial and residential solar EPC with decades of operating history. Comparable to CitiGreen in its regional California footprint, commercial focus, and integrated design-build-finance services.
• Nexamp: Nexamp develops, owns, and operates commercial and community solar assets with PPA structures and is active in monetizing tax credits. Its full-stack development model is structurally similar to CitiGreen's solar-plus-financing approach.

Regional players

• Renu Energy Solutions: Renu Energy is a regional commercial solar EPC serving the Carolinas and Southeast U.S. Like CitiGreen, it is a smaller, regionally concentrated commercial installer with a focus on turnkey solar + financing solutions.

Broad incumbents

• Tesla Energy (Commercial Solar): Tesla Energy offers commercial-scale solar and storage solutions including Megapack and Powerwall. As a much larger incumbent, it competes for the same commercial customers CitiGreen serves in California, with deeper balance sheet and brand.
• REC Solar (a SunPower subsidiary): REC Solar is a long-standing commercial solar developer and PPA provider. As a larger incumbent with national reach, it competes with CitiGreen for commercial accounts while offering comparable PPA financing structures.

Others

• EnergySage: EnergySage is a solar marketplace that connects commercial customers with installers. While not a direct competitor to CitiGreen's own sales channel, it is an alternative lead-generation channel that competes for commercial deal flow in the same geography.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/citigreeninc
• Instagraminstagram.com/citigreeninc
• LinkedInlinkedin.com/company/citigreen-inc
• Xtwitter.com/citigreeninc

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries1 record

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 CitiGreen Inc