What Solenium does

Solenium (legal entity SOLENIUM SAS) is a Colombian renewable-energy infrastructure company founded in 2016 and headquartered in Medellín that develops, finances, and owns distributed solar mini-grids (minigranjas solares) under the consumer brand Solé. Each mini-grid is a decentralized photovoltaic generation asset that delivers electricity to residential households and light industries in underserved Colombian regions, with operations executed through partner Unergy. Reported current operating metrics include 2.4 GWh of annual production, 376 tons of CO2 avoided per year, 1,200+ households and industries powered, and project-level returns exceeding 15%; the company ranks in the Top 5 of Colombia's distributed-generation sector per the SIN-XM real-generation platform. The product portfolio also includes the Solab sustainability sub-brand, which bundles IFC-aligned environmental, social, and biodiversity criteria into project planning.

The business model is B2B infrastructure development rather than direct retail energy sales: Solenium holds the assets, raises debt capital from development finance institutions (notably FMO, the Dutch Development Bank) and family offices, and relies on Unergy for day-to-day operations. A US$40 million debt facility (FMO US$30M + family office US$10M) was closed in November 2025 for 40 mini-grids, followed by a US$100 million facility announcement in April 2026 targeting 100 mini-farms and 100,000 users, with combined capital deployment targets of US$180-200 million. The company has executed its first international technology export to Brazil (2024) and, via Unergy, deployed Colombia's first regulated energy community under Resolución CREG 101 072 de 2025 in partnership with Empresas Públicas de Medellín in the Laureles neighborhood, opening an urban bill-credit customer segment in addition to the rural/underserved base. Pricing is not publicly disclosed and revenue is project-financing driven rather than subscription-based at the retail level.

Name

Solenium

Legal name

SOLENIUM SAS

Website

https://solenium.co

Company type

Private

Founded year

2016

Operating status

Operating

Headcount range

11–50 employees

Short description

Solenium is a Colombian renewable-energy infrastructure developer that builds, finances, and owns distributed solar mini-grids under the Solé brand to deliver clean electricity to residential households and light industries in underserved Colombian regions, operating through partner Unergy and DFI-backed project debt.

Ownership category

akta.pro rank

Product category

Distributed Solar Energy

NAICS

Solar Electric Power Generation (221114), Hydroelectric Power Generation (221111)

SIC

Cogeneration Services & Small Power Producers (4991)

akta.pro primary industry

Distributed Generation (DG) Solar & Small Wind (EUAMAJAD)

akta.pro secondary industry

Project Finance & Capital Structuring (Debt/Tax Equity/Project Bonds) (EUAMAAAD)

Keywords

• Solar mini-grids
• Distributed generation
• Renewable energy infrastructure
• Decentralized power generation
• Clean energy access

Headquarters

HQ city

Medellín

HQ country

Colombia

HQ region

Latin America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Energy Generation and Distribution: Revenue generated through solar mini-grid infrastructure that produces and distributes clean energy to residential and industrial customers, generating 15%+ ROI on projects.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels1 record

Core offering

Solenium develops, constructs, and operates solar mini-grids (minigranjas solares) under its consumer brand Solé to provide decentralized, clean energy to residential households and light industries across Colombia. The company funds project development through debt facilities from development banks and family offices, and day-to-day operations are managed by its operational partner Unergy under IFC-aligned ESG standards.

Product overview

Solenium is a Colombian renewable energy startup that operates primarily through its consumer brand Solé, offering solar mini-grids (minigranjas solares) for distributed energy generation. The company develops, constructs, and operates solar installations that provide clean energy to homes and industries. The core offering consists of solar mini-grids with the Solé brand, complemented by the Solab sustainability initiative that integrates environmental and social impact criteria. Solenium ranks in the Top 5 of distributed generation in Colombia and has expanded internationally with technology exports to Brazil.

Differentiator

Problem solved

Functional benefit

Products and services

• Solé Minigranjas Solares (Solar Mini-Grids) Decentralized solar mini-grid installations that produce and distribute clean electricity to homes and industries across multiple regions of Colombia. Operated by Unergy under IFC-aligned ESG standards; ranks Top 5 in Colombia's distributed generation sector.

Quantifiable outcome

• 86 GWh annual generation from 40 planned mini-grids
• +3 more outcomes

Named customers1 record

Segments2 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

Three partnerships are on record, tiered core and minor.

• UnergycoreStrategic or Co-development Partner · 9 December 2025Unergy serves as the operational partner managing the 40 solar mini-grids under ESG standards. CEO Eduardo Ospina simultaneously scales the energy community model through Solenium infrastructure company, with Unergy handling day-to-day energy community operations including the first regulated energy community pilot in Medellín's Laureles neighborhood.
• Empresas Públicas de Medellín (EPM)coreStrategic or Co-development PartnerEPM partnered with Unergy to launch Colombia's first regulated energy community in Medellín's Laureles neighborhood, enabling residential users to receive solar power bill credits under the new CREG framework.
• IFC (International Finance Corporation)minorOthersIFC international standards referenced as best practice benchmark for ESG integration, environmental criteria, social impact, and biodiversity considerations in project planning.

Scale indicators8 records

Recent moves5 records

Expansion highlights5 records

Emerging players

• PowerGen Renewable Energy: Mini-grid and distributed solar developer active in East Africa (Kenya, Tanzania, Nigeria). Comparable to Solenium on mini-grid architecture, energy-as-a-service revenue model, and DFIs as principal capital partners.
• M-KOPA: Pay-as-you-go solar provider serving millions of off-grid households in East Africa with a financed asset model. Comparable to Solenium's emphasis on debt-financed distributed energy access, though a different primary product (SHS vs. mini-grids) and customer segment.

Direct peers

• Unergy: Solenium's operational partner for its 40+ solar mini-grids in Colombia. Unergy operates, monitors, and runs day-to-day energy community deployments that Solenium finances, with shared leadership (CEO Eduardo Ospina), making it the closest functional and structural peer.
• Sun King (formerly Greenlight Planet): Global leader in pay-as-you-go and distributed solar home systems, including mini-grid deployments across Sub-Saharan Africa and South Asia. Highly comparable to Solenium in product category (distributed solar + energy services), end-customer base (under-electrified households), and pay-as-you-go/managed-service business model.
• Husk Power Systems: Mini-grid developer operating solar-hybrid mini-grids serving rural customers across India and Sub-Saharan Africa. Closely comparable to Solenium on asset type (community-scale solar mini-grids), end market (underserved communities), and project-finance scaling model.

Broad incumbents

• Celsia: Colombian multi-utility with a meaningful distributed generation and solar portfolio via its Celsia Solar program and Ya! platform. Directly relevant to Solenium's Colombian DG market, but operating at much larger scale and across generation, transmission, and distribution.
• Empresas Públicas de Medellín (EPM): Colombia's largest multi-service utility and Solenium's partner for the Laureles regulated energy community pilot. A much larger incumbent that competes and collaborates in distributed generation, with the regulatory and customer reach Solenium depends on for its energy community model.

Regional players

• Energia Renovável Distribuída — Yellow / Sunne (Brazil): Brazil-focused distributed solar platform that aggregates and finances residential and commercial GD projects under Brazil's mature net-metering framework. Solenium has already begun exporting solar technology to Brazil, making Yellow a comparable LATAM distributed-generation operator in the next expansion geography.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/soleniumco
• LinkedInlinkedin.com/company/soleniumco

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds1 record

Investors1 record

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 Solenium