Dat Le
Co-Founder

“In the face of growing energy demand and the urgent need for sustainable solutions, Battery Energy Storage Solutions (BESS) have emerged as a transformative technology in the energy landscape. These solutions enable the efficient storage and management of energy, providing a reliable means to balance supply and demand, enhance grid stability, and integrate renewable energy sources.
Battery Energy Storage as a Service (BESSaaS) represents a paradigm shift in how businesses, utilities, and consumers approach energy management. Instead of significant upfront investments in battery systems, BESSaaS allows customers to access energy storage capabilities through flexible service agreements. This model not only reduces capital expenditures but also provides scalability and adaptability to meet evolving energy needs.
By leveraging advanced battery technologies, BESSaaS empowers organizations to optimize their energy usage, reduce costs associated with peak demand, and enhance their sustainability profiles. Additionally, these solutions play a critical role in the transition towards a more resilient and decentralized energy system, facilitating the integration of variable renewable energy sources such as solar and wind.
As the energy sector continues to evolve, Battery Energy Storage Solutions as a Service stand at the forefront of innovation, offering a practical and effective path to achieving energy independence, reliability, and sustainability for a diverse range of applications—from commercial facilities to large-scale utility operations.”

Hexagon Plus at a Glance
A JV Alliance, spanning from Equipment Manufacturing, through Project Development, Financing, Execution and Operation of battery energy storage systems as a service (BESSaaS) on arbitrage and merchant models in Eastern Europe and Southeast Asia.
+ Tier 1 BESS Manufacturer
Our manufacturing partner is a leading energy operator and energy storage system solution provider with “energy storage as the core” and a global TIER 1 energy storage system manufacturer. The company’s business covers commercial & industrial, utility-scale and digital energy operations (energy asset management and operations, virtual power plants, power trading, green certificates, carbon asset development and trading, etc.), contributing to the realization of dual carbon targets and new power system architectures.
+ Experienced Project Developer
Hexagon Holdings is a development platform, established in 2019 as a group holding company, headquartered in Singapore and with satellite offices in Ho Chi Minh City, Vietnam and Sofia, Bulgaria.
Its core business activities include in Project Development and long term ownership and asset management of rooftop Commercial and Industrial (C&I) and utility scale projects under Power Purchase Agreements (PPAs) with multinational corporates.
+ Strategic Equity Investor
A strategic equity investor, backing up equity requirements for projects implementation with a long-term holding view and balanced portfolio risk approach.
Projects Pipeline
Number of Projects
17
storage capacity
3.1 GWh
Portfolio eirr
>23%
countries
4
BESSaaS
Behind the Meter Arbitrage
Rising Energy Cost impact Manufacturers’ bottom line.
+ Zero Upfront Cost. No capital investment required – HP handles all equipment costs.
+ Complete service management by in-house expert team.
+ Start saving from day one with proven technology.
+ System ownership transfers to customer at contract end
BESSaaS Wholesale Arbitrage
+ Zero Upfront Cost. No capital investment required – HP handles all equipment costs.
+ Complete service management by in-house expert team.
+ Start earning from day one with proven technology.
BESSaaS Benefits Behind the Meter Arbitrage
Significant Electricity Cost Savings
No Upfront Investment: BESSaaS eliminates the need for large capital expenditures associated with purchasing and installing battery systems, allowing clients to utilize their financial resources more effectively.
Lower Energy Costs: By storing energy during off-peak hours and discharging it during peak periods, customers can significantly reduce their energy bills, taking advantage of lower rates and avoiding demand charges.
Enhanced Power Supply Reliability
Backup Power Supply: BESSaaS provides a reliable backup power source during grid outages or disruptions, ensuring business continuity and minimizing downtime.
Grid Stability: By supporting grid stability through energy discharge during peak demand, customers contribute to a more resilient energy infrastructure.
ESG Impact
Integration of Renewable Energy: BESSaaS facilitates the integration of renewable energy sources, such as solar and wind, enabling businesses to utilize clean energy and reduce their carbon footprint.
Sustainable Practices: By adopting BESSaaS, organizations demonstrate a commitment to sustainability, enhancing their corporate social responsibility (CSR) profile.
Scalability and Flexibility
Tailored Solutions: BESSaaS can be customized to meet the specific energy needs of each customer, providing flexibility in capacity and service agreements.
Adaptation to Changing Needs: As energy demands evolve, BESSaaS allows for easy scalability, enabling customers to expand their energy storage capabilities without significant additional investments.
Operational Efficiency
Optimized Energy Management: BESSaaS offers advanced monitoring and management systems, allowing businesses to track energy usage, optimize performance, and make data-driven decisions.
Improved Load Management: By managing energy loads effectively, customers can enhance operational efficiency and reduce operational costs.
Regulatory Complience
Alignment with Regulations: BESSaaS helps organizations comply with energy regulations and mandates aimed at reducing carbon emissions and promoting renewable energy use.
Access to Incentives: Customers can benefit from various government incentives and rebates for adopting energy storage solutions, further enhancing the financial viability of BESSaaS.
BESSaaS Benefits Grid-Connected Wholesale
Revenue Generation
BESS can exploit price volatility in the spot market by buying electricity during periods of low prices, typically when demand is low or renewable generation is high, and selling it back during high-price periods when demand peaks or prices surge. This trading activity creates an additional revenue stream for energy operators or investors. Effective arbitrage maximizes profit margins, contributing to the financial viability of energy storage projects.
Grid Stability
BESS enhances grid stability by providing rapid response capabilities to balance supply and demand fluctuations. During demand spikes or unexpected generation drops, stored energy can be dispatched quickly, preventing grid frequency deviations and outages. This ancillary service support reduces the need for peaking plants or other fast-acting generation sources..
Peak Shaving
Peak shaving involves reducing electricity consumption during periods of maximum demand (peak hours), which often correspond to high spot market prices. BESS can be charged overnight or during off-peak times and then discharged during peak periods, alleviating stress on the grid and reducing costs for consumers or utilities.
Enhanced Revenue Streams
Beyond arbitrage, BESS can participate in multiple ancillary services such as frequency regulation, voltage support, and reserve provision. This diversification allows operators to generate additional income streams, improving project economics and risk management. By offering multiple services in the spot and ancillary markets, BESS owners can optimize asset utilization and improve overall project profitability.
Flexibility and Rapid Response
BESS can respond almost instantaneously to market signals or grid needs, making them highly effective for short-term arbitrage. This rapid response capability ensures that storage assets can adapt quickly to market price dynamics, capturing fleeting arbitrage opportunities that other resources may miss. The high flexibility also supports grid management during unpredictable events or sudden demand spikes.
Renewable Integration
As renewable energy sources like solar and wind are intermittent, BESS serve as buffers by storing excess renewable generation when supply exceeds demand and releasing it when generation drops. This helps smooth out the variability of renewables, enabling higher penetration without compromising grid stability. It also allows renewable energy to participate more actively in spot markets, increasing overall system efficiency and sustainability.
Our team

Milan Koev
Managing director

Dat Le
Co-Founder

Milen Marinov
Managing Director Europe

Giang Nguyen
MAnaging Director SEA
Some of our clients








