RaYSun is a Belgian B2B energy community manager that connects organizations—companies, public authorities, associations, and co-owners' associations—to share locally produced renewable electricity, cutting energy bills by an average of 26% without requiring solar panel investments. The company handles the full process, from feasibility studies and legal setup to monthly monitoring and automated billing, offering both turnkey integration into existing sharing operations and custom-built multi-site communities.
Funding
Funding not disclosed
Founders
Product
Problem
Organizations in Belgium face rising energy costs and often lack the leverage to reduce them, while those with solar panels struggle to valorize their surplus production. The legal and administrative complexity of setting up energy sharing communities—including regulatory dossiers, contracts, and technical matching—discourages many businesses, public entities, and co-owners' associations from adopting this model.
Solution
RaYSun operates as both a design office and an energy community manager, providing end-to-end support for creating and operating energy sharing communities in Belgium. The company connects producers and consumers—such as industrial sites, offices, public buildings, and co-owners' associations—so they can directly trade locally produced solar electricity at prices below standard market rates, bypassing the traditional commercial supply chain. RaYSun handles everything from free diagnostics and feasibility simulations to legal structuring, regulatory filings, producer-consumer matching, and monthly operational management. Members remain connected to the grid and keep their regular supplier for complementary power, while RaYSun's proprietary simulator models complex sharing arrangements, including allocation keys and tariff structures, calibrated with real operational data.
Target Audience
Primary customers are Belgian organizations—industrial sites, offices, retail, public buildings, and co-owners' associations—that either consume significant electricity or produce solar surplus and want to reduce energy costs through local renewable sharing.
Features
- Proprietary simulation tool capable of modeling complex energy communities, including allocation keys, tariff structures, and market prices, calibrated with real operational data
- Full legal and administrative management, including CER/CEC entity formation (ASBL, cooperative), regulatory dossiers, and contract drafting
- Quarter-hourly energy flow monitoring using smart meter data (EAN codes) from grid operators, with fixed or dynamic allocation keys
- Automated dual billing system: one invoice for shared electricity at community-agreed prices, one from the traditional supplier for the remainder
- "My Community" platform for members to track real energy flows from monthly down to 15-minute intervals
- Two service models: Energilia (rapid integration into an existing sharing operation, taking days to weeks) and dedicated accompaniment (custom multi-site sharing operations within an existing legal structure)
- Response to public tenders for municipalities, intercommunales, and institutions, plus feasibility and profitability studies for private actors