MW Storage

What MW Storage does

MW Storage AG is a Swiss-based independent developer, financier, and operator of industrial-scale Battery Energy Storage Systems (BESS) for the European grid. Founded in 2019 and headquartered in Wollerau, Switzerland, the company develops, structures private financing for, and actively operates large-scale battery storage projects designed for a minimum 15-year operational lifespan, with manufacturer-backed performance guarantees. Its operational portfolio comprises 7 active projects totaling 201 MW of installed capacity and 297 MWh of storage capacity across Germany (50%, 100 MW / 1 project), Finland (36%, 73 MW / 4 projects), and Switzerland (14%, 28 MW / 2 projects), with project sizes ranging from approximately 8 MWh to 200 MWh.

The company delivers its offering as 'Energy Storage as a Service' across three phases — Planning (site analysis and permitting), Financing (independent, private, returns-oriented capital structuring), and Operations (active asset management and continuous revenue-strategy optimization). MW Storage targets two primary B2B customer segments: institutional investors (pension funds, insurance companies, and private market investors seeking long-duration infrastructure exposure) and grid operators and energy utilities requiring grid stabilization, frequency regulation, and renewable integration services. Anchor capital relationships include VALYOU (a Swiss pension fund investment foundation, partner since October 2017) and the dedicated MW Storage Fund; operational management is delivered in partnership with Cenvion, with a broader industrial partner ecosystem spanning hardware (Fluence, Siemens Energy, Hitachi, SMA), energy trading and AI optimization (Enspired, Capalo AI), and local utilities (BKW, Alpiq, CKW, Fortum, Vibeco). Revenue is generated via long-term infrastructure returns, energy market participation, and grid services contracts, though specific financial figures are not publicly disclosed.

Name

MW Storage

Legal name

MW Storage AG

Website

https://mwstorage.ch

Company type

Private

Founded year

2019

Operating status

Operating

Headcount range

1–10 employees

Short description

MW Storage AG is a Swiss independent developer, financier, and operator of industrial Battery Energy Storage Systems (BESS) in Europe, operating 201 MW across 7 projects in Germany, Finland, and Switzerland for institutional investors and grid operators.

Ownership category

akta.pro rank

Product category

Battery Energy Storage Infrastructure

NAICS

Electric Power Generation (22111), Electric Power Generation, Transmission and Distribution (2211)

SIC

Cogeneration Services & Small Power Producers (4991)

akta.pro industry

PRIMARYEUAFAAAA

Utility-Scale BESS Project Development & Ownership (IPP/Developer)

Energy, Utilities & Environment/Energy Storage & Grid Flexibility (Batteries, Hydrogen Storage, Demand Response)/Battery Energy Storage Systems (BESS) & Stationary Storage

SECONDARYEUAEAEAA

Utility-Scale BESS EPC & Integration

Energy, Utilities & Environment/Energy Infrastructure & Services (EPC, O&M, Field Services)/Energy Storage EPC & Integration (BESS, PCS, EMS)

SECONDARYEUAFAAAG

BESS Operations, Maintenance & Asset Performance Management (APM)

Energy, Utilities & Environment/Energy Storage & Grid Flexibility (Batteries, Hydrogen Storage, Demand Response)/Battery Energy Storage Systems (BESS) & Stationary Storage

SECONDARYEUAFAAAI

BESS Financing, Insurance & Contracting (Tax Equity, PPA/Tolling, Warranties)

Energy, Utilities & Environment/Energy Storage & Grid Flexibility (Batteries, Hydrogen Storage, Demand Response)/Battery Energy Storage Systems (BESS) & Stationary Storage

Keywords

• Battery energy storage
• Grid stabilization services
• Energy infrastructure investment
• Battery storage operations
• Renewable energy integration

Headquarters

HQ city

Zug

HQ country

Switzerland

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Battery Storage Energy Services: MW Storage develops, finances, and operates industrial battery energy storage systems (BESS) that provide grid stabilization and flexibility services. Revenue is generated through long-term infrastructure investment returns, energy market participation, and grid services contracts with transmission system operators and energy utilities. The company acts as an independent investor and asset operator.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

MW Storage develops, finances, and operates industrial battery energy storage systems (BESS) for grid stabilization and energy infrastructure across Europe. The company delivers Energy Storage as a Service across three phases: project planning (site analysis, permitting), independent private financing, and active asset operation with continuous revenue optimization. Projects are designed for a minimum 15-year operational life with performance guarantees and serve institutional investors, transmission system operators, and energy utilities.

Product overview

MW Storage offers a unified Energy Storage as a Service platform comprising three integrated phases — Planning, Financing, and Operations — for industrial battery energy storage systems. The company operates seven active BESS projects totaling 201 MW / 297 MWh across Germany, Finland, and Switzerland, with a project portfolio ranging from 8MW/8MWh (Ingenbohl II) to 100MW/200MWh (Arzberg). Complementing the operational platform is the MW Storage Fund, a dedicated investment vehicle for institutional capital seeking exposure to European energy storage infrastructure.

Differentiator

Problem solved

Functional benefit

Products and services

• Energy Storage as a Service A three-phase battery storage service encompassing project planning (site analysis, permitting), independent financing (private capital, returns-oriented), and active operations (continuous optimization, market response) for industrial energy storage systems serving institutional investors, grid operators, and energy utilities.
• MW Storage Fund A specialized energy infrastructure investment fund that provides long-term capital to a diversified portfolio of Battery Energy Storage Systems (BESS) in European energy infrastructure, targeting institutional investors seeking sustainable returns from grid-stabilizing storage assets.

Quantifiable outcome

• 201 MW total installed capacity across 7 operational projects
• +3 more outcomes

Segments2 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

Two partnerships are on record, tiered core and minor.

• CenvioncoreStrategic or Co-development PartnerCenvion is MW Storage's operating partner responsible for the operational management of battery storage systems. The Swiss-based, owner-managed company brings extensive experience in operational management of BESS, private equity, infrastructure management, and building European energy platforms with a focus on energy storage and flexibility solutions.
• CaverionminorImplementation/ SI/ Consulting PartnerCaverion is listed as an industrial partner, providing engineering and implementation services for MW Storage's battery storage projects.

Scale indicators4 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• Fluence Energy: Fluence is a global leader in utility-scale BESS products, services, and digital applications, and is also a stated technology partner of MW Storage. It is the most direct comparable as a vertically integrated BESS developer/integrator/operator competing for the same European utility-scale projects and institutional investor capital.
• Penso Power: Penso Power develops, finances, and operates utility-scale battery storage and flexible generation in the UK and Europe. Its independent developer-financer-operator model closely mirrors MW Storage's vertically integrated Energy Storage as a Service approach.
• Wärtsilä Energy Storage: Wärtsilä offers its GridSolv Quantum BESS platform and integrated energy storage solutions targeting utility-scale grid applications in Europe. It competes directly with MW Storage for European utility-scale BESS projects and long-term storage asset investors.
• Harmony Energy: Harmony Energy is a UK-based developer and operator of utility-scale BESS projects, including one of Europe's largest battery storage facilities. It is a direct comparable as an independent European BESS developer targeting institutional investors and grid services revenue.
• Boral Energy: Boral Energy is a European BESS developer focused on standalone battery storage projects for grid services and renewable integration. It competes for the same institutional investor capital and European grid-scale project pipeline as MW Storage.
• Nidec ASI: Nidec ASI provides utility-scale BESS solutions based on its Power Conversion System and PCS technology, active across European grid-scale storage markets. It is a direct peer in developing and operating industrial battery storage projects for grid services and renewable integration.

Emerging players

• GridBeyond: GridBeyond provides AI-driven energy management and battery optimization services for distributed and utility-scale storage across European markets. It overlaps with MW Storage's optimization layer (e.g., Capalo AI, Enspired) and competes for the same customer-side revenue stack, though GridBeyond is primarily a software/platform player rather than an asset owner.

Broad incumbents

• Vattenfall: Vattenfall is a large European utility actively developing and operating utility-scale BESS assets across Northern Europe, including Sweden, Germany, and the UK. It is a broad incumbent in the same European utility-scale storage space as MW Storage.
• EnBW Energie Baden-Württemberg: EnBW is a major German utility with growing investment in utility-scale battery storage in Germany and broader Europe. As a large incumbent utility-affiliated developer, it overlaps with MW Storage's German BESS activities but with materially greater balance sheet and pipeline resources.
• Tesla Energy: Tesla's energy business sells Megapack utility-scale BESS and increasingly develops/operates storage assets globally. It is a broad incumbent competing with MW Storage in the same European utility-scale BESS market but with vastly larger capital, manufacturing scale, and brand recognition.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/mw-storage

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 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 MW Storage