Reservoir Sun
Reservoir Sun develops decentralized solar energy solutions for self-consumption, delivering 100%-financed turnkey photovoltaic installations via long-term PPAs (15-30 years) to commercial, industrial, public sector, and tertiary clients across multiple international geographies.
- Company typePrivate
- Founded2007
- HeadquartersMarseille, France
- Headcount11–50
- GTM typeB2B
- OfferingServices
What Reservoir Sun does
Reservoir Sun develops solar energy solutions for self-consumption, headquartered in Marseille, France. According to the available data, the company operates within the broader GreenYellow ecosystem — GreenYellow being an international solar operator established in 2007 with a Paris headquarters and activities spanning 14+ geographies across Europe, Asia, Latin America, and Africa/Oceania. The firm delivers decentralized photovoltaic installations including rooftop, parking canopy, ground-mounted, floating, and hybrid system configurations, with its flagship #SHIFTProduction offering covering the full project lifecycle from needs analysis and design through construction and long-term operations.
The business model is built on 100%-financed turnkey delivery: the company covers all capital costs and clients purchase electricity via Power Purchase Agreements (PPAs) running 15-30 years, either on-site (direct installation on client property) or off-site via Corporate PPAs (CPPAs) injected to the grid. Revenue streams include long-term recurring energy sales under PPA contracts, managed services tied to performance monitoring and maintenance, and add-on modules (#SHIFTEfficiency, #SHIFTStorage, #SHIFTMobility) that extend the platform into energy efficiency, storage, and EV charging infrastructure.
Go-to-market is direct enterprise field sales with local expert teams in each geography, targeting four primary customer segments: commercial and industrial businesses (primary), public sector and government, the tertiary sector (retail, logistics, commercial real estate), and industrial manufacturers. Named customers include Puerto de Barranquilla BITCO (Colombian port operations), MITR PHOL (Thai sugar and agribusiness), and Aéroport Roland Garros (Indian Ocean regional airport). Pricing is project-specific and not publicly disclosed; the firmographic profile indicates 11-50 employees.
Reservoir Sun firmographics
Firmographics- Name
- Reservoir Sun
- Legal name
- GreenYellow
- Website
- https://reservoirsun.com
- Company type
- Private
- Founded year
- 2007
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Reservoir Sun develops decentralized solar energy solutions for self-consumption, delivering 100%-financed turnkey photovoltaic installations via long-term PPAs (15-30 years) to commercial, industrial, public sector, and tertiary clients across multiple international geographies.
- Ownership category
- akta.pro rank
Reservoir Sun industry classification
Industry- Product category
- Commercial & Industrial Solar Energy Services
- NAICS
- Solar Electric Power Generation (221114)
- SIC
- Cogeneration Services & Small Power Producers (4991)
- akta.pro primary industry
- Solar Project Development & IPP (Utility-Scale & Rooftop) (EUAMABAA)
- akta.pro secondary industries
- Solar EPC & Construction (Utility-Scale, Rooftop, Balance of System) (EUAMABAB), Solar Financing, Leasing & Ownership Platforms (Tax Equity, PPA, Securitization) (EUAMABAJ), Solar Design, Engineering & Performance Software (PV Modeling, Digital Twins, Monitoring) (EUAMABAH)
Keywords
Where Reservoir Sun is headquartered
LocationHeadquarters
- HQ city
- Marseille
- HQ country
- France
- HQ region
- Europe
Offices1 record
Markets served
Reservoir Sun business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Technology or R&D, Infrastructure, Personnel, Operations, Supply Chain, Marketing or Sales
Revenue model
- Solar Energy Production Contracts: Long-term Power Purchase Agreement (PPA) contracts ranging from 15-30 years where clients purchase solar-generated electricity at guaranteed prices, providing predictable revenue streams and reducing client energy costs.
- Turnkey Solar Project Development: Full-service project development from needs analysis and design through construction, financing, and operational management. Revenue generated through energy sales over contract duration.
- Performance-Based Maintenance: Ongoing performance monitoring and maintenance services bundled with installations, ensuring optimal energy production and guaranteed results throughout the contract period.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Custom enterprise solutions with 100% financing |
Go-to-market motion2 records
Distribution channels2 records
Marketing channels4 records
Reservoir Sun product offering
Product offeringCore offering
Reservoir Sun develops customized decentralized solar energy solutions for business and public-sector self-consumption, encompassing rooftop solar, parking solar canopies, ground-mounted solar farms, floating solar, and hybrid systems. The company delivers 100%-financed turnkey projects covering needs analysis, design, administrative procedures, construction, and operational maintenance, with revenue realized through long-term Power Purchase Agreements (PPA On Site and PPA Off Site/CPPA) over 15–30 year contract durations.
Product overview
GreenYellow offers a comprehensive solar energy ecosystem centered on its #SHIFTProduction flagship offering. The portfolio includes five distinct solar installation types (rooftop, parking canopy, ground-mounted, floating, and hybrid systems) combined with flexible financing through PPA contracts (On Site and Off Site/CPPA). Additional value-added modules (#SHIFTEfficiency, #SHIFTStorage, #SHIFTMobility) complement the core solar offering to provide end-to-end energy transition solutions. All solutions are 100% financed by GreenYellow with guaranteed performance over 15-30 year contract periods.
Differentiator
Problem solved
Functional benefit
Brands
- #SHIFTProduction: Solar energy production solutions including rooftop solar, parking solar shades, ground-mounted solar farms, and floating solar
- #SHIFTEfficiency
- #SHIFTStorage
- #SHIFTMobility
Products and services
- #SHIFTProduction (Solar Energy Production) Flagship offering providing customized, fully-financed decentralized photovoltaic solar energy solutions covering the entire project lifecycle from design and financing through construction to long-term operation and maintenance. Available to businesses and public-sector organizations seeking to reduce energy costs and carbon emissions via on-site or grid-injected solar power under PPA contracts.
- #SHIFTEfficiency (Energy Efficiency Solutions) Energy efficiency solutions designed to optimize client energy consumption ahead of, and alongside, solar projects, helping prevent system oversizing and improve overall energy economics for commercial and industrial clients.
- #SHIFTStorage (Energy Storage Solutions) Energy storage solutions complementary to solar production, designed to enhance energy independence, time-shift generation, and provide resilience for businesses.
- #SHIFTMobility (EV Charging Infrastructure / IRVE) Electric vehicle charging infrastructure (IRVE) solutions for charging stations, deliverable standalone or powered by solar canopies as part of a combined mobility-and-generation offering.
Quantifiable outcome
- Reduced energy charges and guaranteed energy pricing throughout contract duration
- +2 more outcomes
Companies that use Reservoir Sun
Customer profileNamed customers3 records
Segments4 records
Ideal customer profiles4 records
Reservoir Sun technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature7 records
Reservoir Sun partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- GreenYellowcoreSince 2007, GreenYellow has established itself as a leader in decentralized photovoltaics, providing comprehensive solar energy solutions including 100% financed turnkey installations, performance guarantees, and lifecycle management across multiple geographies including Europe, Asia, Latin America, and Australasia. The organization operates as an international solar expert with local operational teams in each region.
Scale indicators4 records
Recent moves5 records
Expansion highlights5 records
Reservoir Sun competitors and assessment
Company assessmentDirect peers
- Akuo Energy: French renewable energy IPP specializing in solar, wind, and storage with project development, financing, and operations across Europe and emerging markets. Closely comparable business model with full-lifecycle project management and PPA structures.
- Lightsource BP: Global solar developer and operator with projects across Europe, Americas, Asia, and Australia. Offers PPA-financed solar solutions to C&I customers, directly competing with Reservoir Sun's core offering.
- Sonnedix: Global solar IPP focused on developing, financing, and operating distributed and utility-scale PV plants under long-term PPAs across Europe, Americas, and Asia-Pacific. Direct competitor in the C&I and decentralized solar segment.
- Voltalia: French-headquartered renewable energy IPP and solar developer offering turnkey solar, wind, and hybrid projects with PPA structures across Europe, LATAM, and Africa. Direct competitor in decentralized C&I solar and multi-country project development.
- Neoen: French independent power producer developing solar, wind, and storage projects under long-term PPAs globally. Direct competitor in utility-scale and C&I solar with comparable corporate PPA offerings across multiple geographies.
Broad incumbents
- Iberdrola Renovables: Spanish utility's renewables division operating large-scale solar and wind across Europe, Americas, and Australia. Competes in corporate PPA market with significant capital resources.
- Engie Green: Renewables arm of French utility Engie, developing and operating solar, wind, and storage across France and internationally. A much larger incumbent with overlapping C&I solar PPA capabilities and deeper balance sheet.
- EDF Renewables: Renewables subsidiary of French utility EDF, active across solar, wind, and storage globally. Competes in the same decentralized solar space with utility-backed financing advantages.
- TotalEnergies Renewables: Renewables arm of TotalEnergies with growing solar IPP and PPA activities worldwide. Major incumbent leveraging corporate balance sheet to finance distributed solar projects for C&I clients.
Regional players
- SunPower (Maxeon): Solar panel manufacturer and C&I solar solutions provider with strong presence in North America and select international markets. Comparable in C&I rooftop solar offerings but with different geographic focus.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
Reservoir Sun social profiles
Digital presenceReservoir Sun financial estimates
Financial estimateRevenue estimate
Valuation estimate
Reservoir Sun leadership team
Management profileNumber of profiles
Reservoir Sun funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Reservoir Sun M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Reservoir Sun
What does Reservoir Sun do?
Reservoir Sun develops customized decentralized solar energy solutions for business and public-sector self-consumption, encompassing rooftop solar, parking solar canopies, ground-mounted solar farms, floating solar, and hybrid systems. The company delivers 100%-financed turnkey projects covering needs analysis, design, administrative procedures, construction, and operational maintenance, with revenue realized through long-term Power Purchase Agreements (PPA On Site and PPA Off Site/CPPA) over 15–30 year contract durations.
When was Reservoir Sun founded?
Reservoir Sun was founded in 2007. It employs 11 to 50 people.
Where is Reservoir Sun based?
Reservoir Sun is headquartered in Marseille, France, in the Europe region.
How does Reservoir Sun make money?
Three revenue lines are on record. Solar Energy Production Contracts are the primary driver. The others are turnkey Solar Project Development and performance-Based Maintenance.
Who are Reservoir Sun's main competitors?
Direct peers on record are Akuo Energy, Lightsource BP, Sonnedix, Voltalia and Neoen. Broad incumbents are Iberdrola Renovables, Engie Green, EDF Renewables and TotalEnergies Renewables. SunPower (Maxeon) is listed as a regional player.
Does Reservoir Sun have an API?
No public API is recorded for Reservoir Sun.
What industry is Reservoir Sun in?
Reservoir Sun's product category is Commercial & Industrial Solar Energy Services. Its primary akta.pro industry code is EUAMABAA, Solar Project Development & IPP (Utility-Scale & Rooftop), with a secondary code of EUAMABAB, Solar EPC & Construction (Utility-Scale, Rooftop, Balance of System). Its NAICS code is 221114 and its SIC code is 4991.