What Terra One does

Terra One is a Berlin-based technology and infrastructure company that develops, builds, and operates grid-scale battery energy storage systems (BESS) in Germany, with project sizes ranging from 15 MW to over 800 MW. Co-founded by Tony Schumacher (CEO), Thomas Antonioli (CFO, formerly CFO of Grover), and Malte Herberg (CTO), the company has assembled a 55-person team in Berlin-Kreuzberg that combines former OpenAI engineers with energy-trading practitioners from RWE and Statkraft. Terra One controls the full value chain in-house — from site selection, permitting, and construction through to long-term AI-driven operation — and reports 1.25 GW of reserved grid connections, 300+ secured land parcels, and 400 MW of projects near ready-to-build.

The company's technical core is T1 AI, a proprietary power-market intelligence system trained on over 2TB of historical European energy data that monitors production, demand, weather, and pricing to forecast and act on arbitrage opportunities. T1 AI is integrated into an automated trading platform that operates around the clock at leading European power exchanges and balancing energy markets without human intervention, using GPT-based optimization to maximize per-battery revenue through charge/discharge decisions. Beyond autonomous trading, Terra One sells project rights to other developers and energy traders, provides EEG-compliant direct marketing for solar PV operators (OneKraftwerk), and acquires BESS projects in early development stages.

Terra One's revenue model is a mix of energy-trading arbitrage profits, percentage-based and fixed direct-marketing fees on solar installations (100 kWp to 1 MWp), EEG market premium management, and project-acquisition fees. In February 2025, the company sold 310 MW of battery project rights to Castleton Commodities International and S4 Energy, achieving profitability in under two years. Capital formation has scaled rapidly: a $7.5M seed round in April 2024 led by PT1, neosfer, 468 Capital, and angel investors was followed in September 2025 by a €150M mezzanine facility from Aviva Investors that unlocks up to €750M of total storage investment. Strategic partners include Consilium (solar-plus-storage co-development), INTILION (battery systems integration), EWE AG (grid connection), and Ascory Bank (non-recourse project debt).

Name

Terra One

Legal name

Terra One Climate Solutions GmbH

Website

https://terra.one

Company type

Private

Founded year

2022

Operating status

Operating

Headcount range

11–50 employees

Short description

Terra One is a Berlin-based developer and operator of grid-scale battery energy storage systems in Germany (15 MW to 800+ MW), using its proprietary T1 AI trading platform to autonomously optimize energy arbitrage at European power exchanges while serving landowners, municipalities, and grid operators.

Ownership category

akta.pro rank

Product category

Grid-Scale Battery Energy Storage

NAICS

Electric Power Generation (22111)

SIC

Cogeneration Services & Small Power Producers (4991)

akta.pro primary industry

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

akta.pro secondary industries

BESS Market Participation & Trading Services (Ancillary/Capacity/Arbitrage) (EUAFAAAL), BESS Operations, Maintenance & Asset Performance Management (APM) (EUAFAAAG), Utility-Scale BESS EPC & Integration (EUAEAEAA)

Keywords

• Grid-scale battery storage
• AI energy trading
• Renewable energy storage
• Battery project development
• Power market optimization

Headquarters

HQ city

Berlin

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Energy Trading (Battery Operations): Battery storage systems charge during low-price periods (high renewable energy share) and discharge during peak prices. Trading profits minus operating costs constitute primary revenue from grid-scale battery operations.
2. Direct Marketing (OneKraftwerk): Marketing electricity from renewable energy sources on power exchanges. Revenue from trading profits minus operating costs, with percentage-based fees charged to customers for systems between 100kWp and 1MWp with fixed monthly fees.
3. Market Premium Management: EEG (German Renewable Energy Sources Act) compliant direct marketing where grid operators pay market premium to compensate difference between market value and bid price, ensuring predictable income for renewable energy plant operators.
4. Battery Project Acquisition: Purchase of battery storage projects (BESS) in various development stages from concept to construction-ready. Provides equity and debt capital for project development.

Pricing tiers

Go-to-market motion3 records

Distribution channels1 record

Marketing channels5 records

Core offering

Terra One develops, builds, and operates large-scale grid-connected battery energy storage systems (BESS) ranging from 15 MW to over 800 MW in Germany. The storage assets are monetized through T1 AI, a proprietary AI-driven automated trading platform that autonomously buys and sells electricity around the clock at leading European power exchanges and balancing energy markets. The company also provides direct marketing services (OneKraftwerk) for third-party solar PV installations and acquires battery storage projects at all development stages.

Product overview

Terra One operates a unified platform-plus-services architecture centered on grid-scale battery energy storage systems (BESS) combined with proprietary AI trading technology. The core offering consists of T1 AI (Power Market Intelligence) - an autonomous AI trading platform that optimizes battery operations - supporting grid-scale BESS deployments ranging from 15 MW to 800+ MW. Additional modules include OneKraftwerk for direct marketing of solar installations and BESS Project Acquisition & Development services for acquiring and developing battery storage projects across all development phases. The company controls everything from site selection and construction to long-term AI-driven operation.

Differentiator

Problem solved

Functional benefit

Brands

• OneKraftwerk: Direct marketing service for renewable energy plants, optimizing electricity feed-in and trading at the power exchange

Products and services

• Grid-Scale Battery Energy Storage Systems (BESS) Large-scale battery storage systems that stabilize the power grid by storing excess renewable energy and releasing it during peak demand. Terra One develops, builds, finances, and operates these systems in Germany, with projects ranging from 15 MW to over 800 MW capacity, including active sites in Ahlerstedt, Oersdorf, Barsinghausen, Visbek, and Tangerhütte.
• T1 AI (Power Market Intelligence) Proprietary AI system that forecasts and responds to European energy market changes, monitors energy production, demand, weather, and pricing across Europe, and powers an automated trading platform for 24/7 autonomous operation at European power exchanges and balancing energy markets. Integrated with GPT-based optimization to maximize battery revenue.
• OneKraftwerk Direct Marketing Direct marketing service for solar PV installations (100 kWp to 1+ MWp) that registers systems with transmission system operators, manages balancing groups, and markets electricity at the power exchange to maximize revenue. Available as fixed monthly fee for smaller systems and percentage-of-monthly-market-value for larger systems.
• BESS Project Acquisition & Development End-to-end service for acquiring battery storage projects (15 MW to 800+ MW) at any development stage and developing them through site selection, permitting, financing, construction, grid connection, and commissioning. Provides equity and debt capital to project developers and offers full or strategic-participation takeover models.

Quantifiable outcome

• Battery projects can supply a city of 100,000 people with electricity for up to 6 hours
• +3 more outcomes

Named customers3 records

Segments5 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability5 records

Feature4 records

Partnerships

Three partnerships are on record, tiered core.

• EWE AGcoreTechnology or Integration · 8 May 2026Provided flexible connection agreement for 15-MW battery project in Visbek, Germany. Critical infrastructure partnership enabling project grid integration.
• INTILIONcoreTechnology or Integration · 15 April 2026Strategic partner for 30 MWh battery storage implementation in Tangerhütte, Saxony-Anhalt. Partner for battery system integration and deployment.
• ConsiliumcoreStrategic or Co-development Partner · 5 March 2026Exclusive strategic cooperation for PV direct investments with integrated storage solutions. Includes project pipeline of over 200 MWp of photovoltaic and approximately 150 MW of storage capacity.

Scale indicators11 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Fluence Energy: Fluence is a global grid-scale BESS developer and operator with its own AI-based optimization software (Mosaic), making it the closest direct competitor to Terra One's hardware-plus-trading-stack model.
• Stem Inc: Stem provides AI-driven energy storage optimization and trading software layered on third-party battery assets, directly analogous to Terra One's T1 AI trading platform positioning.
• S4 Energy: S4 Energy is a Netherlands-based developer and operator of grid-scale battery storage that has actually purchased project rights from Terra One, making it both a customer and a near-twin operator in the Northwest European BESS market.

Broad incumbents

• RWE: RWE is a major German utility rapidly scaling utility-scale BESS in Germany and Europe; Terra One has hired from RWE and competes for the same grid connections, projects and trading opportunities.
• EnBW: EnBW is a German utility with an active large-scale BESS pipeline and renewable direct-marketing operations, overlapping with Terra One's BESS development and OneKraftwerk direct-marketing service.
• Wärtsilä Energy Storage: Wärtsilä's Energy Storage business delivers grid-scale BESS projects globally with its own optimization software, positioning it as a broader incumbent in Terra One's core hardware-plus-software niche.
• Tesla Energy: Tesla's energy business supplies Megapack BESS plus the Autobidder trading platform, a direct large-scale competitor to Terra One's grid-scale storage and AI trading offering.
• BYD Energy Storage: BYD is one of the world's largest BESS manufacturers and is increasingly active as a project developer and IPP in European grid-scale storage, overlapping with Terra One's development and trading operations.

Emerging players

• Energy Vault: Energy Vault develops utility-scale energy storage systems with proprietary technology and optimization software, making it an emerging alternative to lithium-ion BESS developers like Terra One.
• Form Energy: Form Energy is developing long-duration iron-air battery storage systems targeting grid-scale applications, positioning it as an emerging alternative technology peer to Terra One's lithium-ion BESS focus.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Funding overview

Funding rounds3 records

Investors8 records

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 Terra One