Alteso

What Alteso does

Alteso (legal entity: Alternative Energy Solutions GmbH) is a Vienna-headquartered, privately-held renewable energy consulting firm founded in June 2014. The company originally built its business around PEAK, a proprietary digital platform for solar PV power plant monitoring and efficiency optimization; by 2019, PEAK analyses had covered more than 700 MW of capacity across over 10 countries, primarily in the CIS region. In 2021, Alteso divested PEAK and restructured the business around four advisory service lines: emerging technologies implementation, regulatory compliance, efficiency optimization, and strategic planning.

The company serves businesses in the renewable energy sector — including solar developers and infrastructure investment funds — providing expert guidance on technology selection, regulatory navigation, asset performance optimization, and long-term renewable energy planning. Alteso's go-to-market is sales-led and consulting-based, with direct enterprise engagement and no disclosed pricing transparency. Its current customer set, as represented by logos on the corporate website, includes BlackRock, CNBM, Nordic Solar, Saferay, Luxcara, Efsolare, Solarkapital, and SolarArise.

Operationally, Alteso is small (11-50 employees) and single-office (Vienna). The firm faced a material setback in 2022 when it lost access to the Ukrainian market following the Russian invasion, but has retained enterprise relationships across European markets. The company was also a 2014 co-investor in DAS Energy GmbH, an R&D venture developing non-glass photovoltaic modules. No external funding rounds, acquisitions, or leadership changes are disclosed in the available data.

Name

Alteso

Legal name

Alternative Energy Solutions GmbH

Website

https://alteso.at

Company type

Private

Founded year

2014

Operating status

Operating

Headcount range

11–50 employees

Short description

Alteso (Alternative Energy Solutions GmbH) is a Vienna-based renewable energy consulting firm serving solar developers and infrastructure investors with regulatory compliance, emerging technology advisory, PV asset optimization, and strategic planning services.

Ownership category

akta.pro rank

Product category

Renewable Energy Consulting

NAICS

Other Scientific and Technical Consulting Services (54169)

SIC

Electric, Gas & Sanitary Services (4900)

akta.pro primary industry

Utility-Scale Renewable O&M (Solar, Wind, Hydro, Geothermal) (EUAMAGAA)

akta.pro secondary industry

Remote Operations, Control Room & Digital O&M (Monitoring, Diagnostics) (EUAEAGAM)

Keywords

• Renewable energy consulting
• Solar PV advisory
• Regulatory compliance services
• Energy efficiency optimization
• Clean energy strategy

Headquarters

HQ city

Vienna

HQ country

Austria

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Consulting and Advisory Services: ALTESO provides expert consulting and advisory services for renewable energy implementation, regulatory compliance navigation, efficiency optimization, and strategic planning. Revenue is generated through professional services engagements with businesses seeking renewable energy guidance.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Alteso (Alternative Energy Solutions GmbH) provides expert consulting and advisory services to businesses in the renewable energy sector. Its offerings cover emerging renewable technology implementation, regulatory compliance navigation, solar PV power plant efficiency optimization, and strategic planning & development for long-term sustainability goals. The company previously developed the PEAK digital platform for solar PV monitoring but divested it in 2021 and now operates purely as a services firm.

Product overview

ALTESO operates as a consulting and advisory services firm focused on renewable energy. The company previously offered PEAK, a digital solar PV power plant monitoring and efficiency optimization product which was sold in 2021. Today, ALTESO provides expert consulting services including emerging technologies implementation, regulatory compliance guidance, efficiency optimization for renewable energy assets, and strategic planning & development.

Differentiator

Problem solved

Functional benefit

Brands

• PEAK: A groundbreaking digital project that revolutionized solar PV power plant efficiency and monitoring. The technology was sold in 2021.

Products and services

• Renewable Energy Consulting and Advisory Services Comprehensive expert consulting engagement for businesses in the renewable energy sector, covering emerging technologies implementation, regulatory compliance, efficiency optimization of renewable energy assets, and strategic planning & development from concept through execution. Targeted at enterprise and mid-market renewable energy operators, developers, and investors.
• Emerging Technologies Implementation Advisory service helping businesses identify and implement the latest renewable energy technologies so they remain competitive in a rapidly evolving market. Aimed at renewable energy firms evaluating new technology adoption.
• Regulatory Compliance Advisory Expert guidance on compliance with national and international renewable energy regulations, helping clients avoid costly compliance pitfalls. Targeted at renewable energy businesses operating across multiple jurisdictions.
• Efficiency Optimization for Renewable Assets Services that optimize the performance and efficiency of renewable energy assets, drawing on the firm's extensive experience in PV power plant monitoring and analysis, with the goal of maximizing client return on investment.
• Strategic Planning & Development

Quantifiable outcome

• Analyzed over 700 MW of solar power plant capacity across more than 10 countries

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

One partnership is on record.

• DAS Energy GmbHcoreStrategic or Co-development Partner · 1 January 2014ALTESO was a co-investor in DAS Energy GmbH, an R&D start-up dedicated to developing innovative non-glass photovoltaic modules. These cutting-edge modules, made from glass-reinforced plastic, offered lightweight and flexible applications suitable for modern architecture, mobile use, and remote energy supply. This collaboration showcased ALTESO's commitment to pioneering technologies that push the boundaries of renewable energy.

Scale indicators3 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• PVEL (PV Evolution Labs): Independent PV testing and benchmarking laboratory serving project developers, asset owners, and financiers; competes for overlapping diligence, performance, and quality-related advisory work.
• Solargis: Slovakia-headquartered solar resource and PV performance data provider offering analytics, consulting, and digital O&M tools; directly comparable to Alteso's analytics heritage and current efficiency-optimization advisory.
• 3E (Synergi Energy): Brussels-based solar and wind resource analytics and consulting firm providing site assessment, performance optimization, and digital O&M services — a close functional match to Alteso's former PEAK and current advisory offering.

Emerging players

• Raptor Maps: Boston-based drone and AI analytics platform for solar asset management and O&M; an emerging tech-enabled alternative to traditional PV performance-advisory firms like Alteso.
• Aurora Solar: Cloud-based solar PV design and sales-software platform serving installers and developers; represents the digital-product evolution path Alteso could pursue after selling PEAK.
• kWh Analytics: US-based solar asset performance and risk-analytics firm offering benchmarking, O&M data, and insurance-related advisory for PV portfolios — comparable digital-O&M and data advantage angle to Alteso.
• Heliolytics: Drone-based PV inspection and analytics provider serving utility-scale solar asset owners with performance diagnostics — directly overlaps Alteso's efficiency optimization / monitoring value proposition.

Broad incumbents

• Wood Group (Renewables / EIPC): Global engineering and consulting firm providing owner's engineer, O&M advisory, and regulatory-compliance services across solar and other renewables; competes for the same asset-owner consulting mandates.
• TÜV Rheinland (Solar / Energy): Testing, inspection, and certification organization with dedicated renewable-energy advisory and PV plant performance services; competes for similar enterprise and asset-owner clients on quality assurance and compliance.
• DNV (Energy Systems): Global energy advisory, testing, and certification firm offering solar PV advisory, O&M services, and asset management support; overlaps directly with Alteso's regulatory-compliance and efficiency-optimization services, but at much larger scale across energy, maritime, and other verticals.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/altesoPEAK

Revenue estimate

Valuation estimate

Number of profiles

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 Alteso