What Clean Horizon does

Clean Horizon is a Paris-based energy storage consultancy founded in 2009, positioned as one of the earliest entrants globally dedicated exclusively to battery energy storage system (BESS) advisory. The firm operates with the dual mandate of providing market analysis and technical consultancy on storage projects, serving four primary client segments: battery storage project developers, investors and financiers, utilities/TSOs/DSOs, and policymakers/regulators. Its service portfolio spans Market Advisory (market and regulatory analysis, competitive intelligence, strategic entry guidance) and Technical Advisory (owner's engineering, feasibility studies, development support, procurement, construction auditing, and commissioning).

The company's product stack centers on proprietary technology including COSMOS (a simulation engine for calculating storage revenue stacks across day-ahead, intraday, FCR, aFRR, mFRR, and capacity mechanisms with 15-minute dispatch optimization, now delivered as a SaaS platform), AI/ML-driven Price Forecast reports covering European markets through 2050, the Storage Index (a free monthly benchmark across 15 European countries), and the Premium Index (a paid customized asset benchmarking product). The business model combines traditional professional services consulting with recurring SaaS subscriptions and freemium-to-paid content products, supported by a sales-led, event-driven go-to-market that relies on industry conferences, webinars, partnerships with media (Solar Media/Energy Storage News) and data platforms (Nord Pool).

The firm has designed or audited over 21 GWh of energy storage projects across 83 countries, operates three international offices (Paris, Miami, and Mainz), and is founder-owned (Michael Salomon) with no disclosed external institutional funding. It achieved ISO/IEC 27001 certification in December 2025 and maintains a team of roughly 30+ specialists including partners, consultants, engineers, and data scientists.

Name

Clean Horizon

Legal name

Clean Horizon Consulting

Website

https://cleanhorizon.com

Company type

Private

Founded year

2009

Operating status

Operating

Headcount range

11–50 employees

Short description

Clean Horizon is a Paris-based energy storage consultancy providing market analysis and technical advisory to BESS developers, investors, utilities, and policymakers worldwide. Its proprietary COSMOS simulation tool, AI-driven price forecasts, and Storage Index benchmark serve the European energy storage sector.

Ownership category

akta.pro rank

Headquarters

HQ city

Paris

HQ country

France

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Market Advisory Consulting: Market analysis, regulatory analysis, competitive analysis, and strategic advisory for energy storage projects in specific countries. Includes overview of storage technologies, revenue streams, market regulations, and route-to-market guidance.
2. Technical Advisory Consulting: Owner's engineering services including feasibility studies, development support, procurement, construction auditing, and commissioning support for energy storage projects.
3. Price Forecast Reports: Proprietary price forecasts for electricity and ancillary services markets up to 2050, covering wholesale prices, FCR, aFRR, mFRR, and capacity market prices. Sold as subscription reports accessed via Clean Horizon Platform.
4. COSMOS Tool Access: SaaS access to COSMOS simulation tool for business plan optimization, available via Clean Horizon Platform. Provides optimal sizing, cashflow calculations, NPV/IRR analysis, and sensitivity analyses.
5. Storage Index: Free monthly benchmark available to all, providing annualized revenue benchmarks for energy storage across 15 European countries.
6. Premium Index: Paid customized version of Storage Index with itemized daily revenue stacks, weekly granularity, and project-specific parameters. Tailored to real asset benchmarking.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels6 records

Core offering

Clean Horizon provides specialized consulting services and proprietary analytical tools for the energy storage sector. The company offers market advisory (regulatory analysis, competitive intelligence, route-to-market guidance) and technical advisory (owner's engineering, feasibility studies, sizing, procurement, commissioning, auditing) for battery energy storage projects. It complements these services with subscription-based software products including the COSMOS simulation tool, Price Forecast reports for European wholesale and ancillary services markets, the free Storage Index benchmark, and the Premium Index for asset-level benchmarking.

Product overview

Clean Horizon is a consulting firm 100% dedicated to energy storage, offering a portfolio of interconnected analytical tools and advisory services. The core product suite consists of the COSMOS simulation tool (a SaaS platform for optimizing BESS dispatch and calculating project economics), the Storage Index (a free monthly benchmark of battery storage revenues across 15 European countries), and the Premium Index (a customized paid version for benchmarking real asset performance). These are supported by proprietary Price Forecast reports covering multiple European markets up to 2050. The company also provides Market Advisory (market analysis, competitive intelligence, regulatory insights) and Technical Advisory (owner's engineering, feasibility studies, commissioning, auditing) services. The Clean Horizon Platform serves as the central hub for accessing tools and reports.

Differentiator

Problem solved

Functional benefit

Brands

• COSMOS: Simulation tool for optimizing energy storage revenue stacks and business plans, now available as a SaaS platform.
• Storage Index
• Premium Index
• Price Forecast

Products and services

• COSMOS SaaS simulation tool for calculating battery energy storage revenue stacks, optimal sizing, cashflows, NPV and IRR. Simulates BESS dispatch and market participation across European markets including day-ahead, intraday, FCR, aFRR, mFRR and capacity mechanisms, with 15-minute timestep optimization. Targets energy storage developers and investors.
• Price Forecast Subscription-based forecast reports covering wholesale and ancillary services prices (FCR, aFRR, mFRR) up to 2050 across multiple European markets. Includes market overviews, three electricity mix scenarios, and revenue stack analysis. Accessed via the Clean Horizon Platform. Targets storage developers, investors, and policymakers.
• Storage Index Free monthly benchmark that calculates annualized gross revenue of a storage asset based on energy, capacity, and ancillary services prices. Covers 15 European countries with different battery discharge durations (1-hour, 2-hour, 3-hour, 4-hour). Targets developers, investors, and policymakers.
• Premium Index Paid customized version of the Storage Index for project owners to benchmark real asset financial performance. Includes itemized revenue stack by source, daily granularity, and is tailored to project specificities including grid limitations and battery state of health. Targets project owners and asset managers.
• Market Advisory Consulting service including market and regulatory analysis, competitive analysis, and strategic comparison of European opportunities for energy storage projects. Targets developers, investors, utilities, and policymakers.
• Technical Advisory

Quantifiable outcome

• 21 GWh of energy storage projects designed or audited, majority operational
• +2 more outcomes

Named customers1 record

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability3 records

Feature5 records

Partnerships

Three partnerships are on record, tiered core and minor.

• Nord PoolcoreGTM or Marketing Partner · 9 March 2026Nord Pool and Clean Horizon announced a partnership to distribute the Clean Horizon Storage Index through Nord Pool's data portal. The partnership aims to bring transparency and standardization to the European battery storage market by combining Clean Horizon's energy storage expertise with Nord Pool's market data distribution excellence. The Storage Index is now available through Nord Pool's data portal at data.nordpoolgroup.com.
• YUSOminorStrategic or Co-development PartnerYUSO provides route-to-market and energy optimisation services to BESS assets, operating an energy platform to provide market access. Presented jointly with Clean Horizon in webinars discussing BESS revenue optimization and market participation strategies.
• Energy Storage News (Solar Media)coreGTM or Marketing PartnerSolar Media Limited (publisher of Energy Storage News) co-hosts webinars with Clean Horizon experts on topics including BESS revenue models, grid limitations, and market outlook. Clean Horizon experts contribute content and participate as speakers in Solar Media organized events.

Scale indicators6 records

Recent moves9 records

Expansion highlights7 records

Direct peers

• BloombergNEF: Bloomberg's energy research arm producing subscription market intelligence and forecasts across energy storage, power markets and renewables. Competes directly in the European BESS analytics and advisory space.
• Modo Energy: European battery storage market intelligence subscription platform covering revenues, ancillary services and policy developments. Direct comparable to Clean Horizon's Storage Index in coverage and audience.
• Aurora Energy Research: European-headquartered power market analytics firm offering forecasts, market intelligence and consulting across European electricity markets including storage. Closely comparable subscription-plus-advisory model.
• Energy Exemplar: Provider of PLEXOS energy market simulation software used by utilities and developers for storage dispatch and revenue optimization modeling. Comparable simulation-tooling and storage dispatch optimization offering.
• Wood Mackenzie: Global energy research and consultancy firm with deep BESS market coverage, subscription research products and consulting practice. Closest direct competitor in European storage market intelligence and advisory.
• LCP Delta: European energy consulting firm with deep power markets, flexibility and storage analytics practice. Comparable in scope of European storage market advisory and bespoke consulting engagements.

Broad incumbents

• DNV: Norwegian certification and advisory firm with established energy storage advisory, due diligence and owner's engineering practices. Overlaps with Clean Horizon's technical advisory offering but serves a wider energy portfolio.
• AFRY: European engineering and management consulting firm with energy storage advisory and owner's engineering capabilities. Broader incumbent competing for technical advisory and feasibility mandates in European BESS.
• S&P Global Commodity Insights: Large energy market intelligence and consulting arm of S&P Global covering power, gas, renewables and storage with global reach. Broader incumbent with overlapping BESS research and consulting products.

Emerging players

• Pexapark: European renewables and battery storage PPA price intelligence and risk management platform. Comparable subscription-data approach to European power market price discovery, with focus on PPA benchmarking rather than full revenue-stack modeling.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/clean-horizon

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 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 Clean Horizon