Sustainable Energy Services International

What Sustainable Energy Services International does

Sustainable Energy Services International (SESI) is a Washington, DC-headquartered clean energy project developer founded in 2010 that designs, finances, builds, owns, and operates distributed and grid-connected power systems in developing countries. The company works across solar PV, micro-to-large-scale hydropower, wind, natural gas, and hybrid configurations integrating diesel generation with renewables and battery storage, and uses third-party components such as SMA inverters and Crown Battery flooded lead-acid batteries with SMA webbox remote monitoring. Its core differentiator is the integration of engineering with social development — combining infrastructure delivery with training of local utility staff, community operators, and village management committees to ensure long-term operational sustainability, including innovative pre-paid metering for revenue adequacy.

SESI serves primarily governments, development finance institutions (USAID, World Bank), rural and remote communities, and healthcare facilities across 18 countries on 4 continents spanning Central Asia, Africa, South and Southeast Asia, and Oceania. The company generates revenue through four engagement models: Independent Power Producer (SESI builds, owns, operates and invoices for generated power with no client capital outlay), Partnership (shared investment with the client), Design-and-Construct EPC (client owns the asset), and Transaction Advisory Services covering energy, mining, and agriculture sectors. Notable customers include the Afghanistan Ministry of Energy, the US State Department (TFBSO), the Philippines Department of Energy, Graess Energy UZDE (Uzbekistan 2000MW Solar), and the World Bank. SESI is a member of RTI International's consortium for the USAID Energy II IDIQ (2019-2024) and operates with a small core team of 1-10 employees supported by senior advisory board members with backgrounds in IFC sustainable finance, PV technology commercialization, and energy economics.

Name

Sustainable Energy Services International

Legal name

Sustainable Energy Services International

Website

https://sesinter.com

Company type

Private

Founded year

2010

Operating status

Operating

Headcount range

1–10 employees

Short description

Sustainable Energy Services International is a Washington, DC-based clean energy project developer founded in 2010 that designs, finances, builds, and operates distributed solar, hydro, wind, and hybrid power systems for governments, development finance institutions, and rural communities across 18 countries.

Ownership category

akta.pro rank

Product category

Clean Energy Project Development and EPC Services

NAICS

Solar Electric Power Generation (221114), Electric Power Generation (22111), Electric Power Generation, Transmission and Distribution (2211)

SIC

Electric Services (4911), Cogeneration Services & Small Power Producers (4991)

akta.pro primary industry

Development Management & Owner’s Engineering (Design Basis, Yield, Technical Due Diligence) (EUAMAAAG)

akta.pro secondary industries

Commissioning, Testing & Energization Services (Pre-Commissioning, Grid Code Compliance) (EUAMAFAK), Owner’s Engineering, Grid Interconnection & System Studies (PVsyst/Performance Modeling, Protection Studies) (EUACAGAG)

Keywords

• Clean energy development
• Power project engineering
• Distributed generation systems
• Renewable energy EPC
• Hybrid energy solutions

Headquarters

HQ city

Washington

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Independent Power Producer (IPP): SESI builds, owns, and operates installations, invoicing clients for generated power. No capital outlay required from client. Generates recurring revenue from power sales over project lifecycle.
2. Partnership Investment Model: Shared investment with client on negotiated share basis for installation and ownership. Revenue shared proportionally based on investment shares.
3. Design and Construct (EPC): SESI builds installation on design and construct basis. Client takes full ownership. One-time project revenue for SESI.
4. Transaction Advisory Services: Due diligence, structuring, financing, and promoting projects for Energy, Mining, and Agriculture sectors. Professional services revenue model.

Go-to-market motion2 records

Distribution channels5 records

Marketing channels4 records

Core offering

SESI develops and delivers commercial-scale clean energy power projects in developing countries, covering project identification through feasibility, financing, EPC construction, ownership, and operations. It works across solar PV, hydroelectric (micro to large scale), wind, natural gas, and hybrid systems combining renewables with diesel and battery storage for governments, communities, and development finance institutions. The firm also provides transaction advisory, electricity distribution operations and management, waste-to-energy systems, and capacity building for long-term project sustainability.

Product overview

SESI offers a comprehensive suite of clean energy project development and management services focused on distributed power systems. The core offering encompasses commercial power project development using solar, hydro, and natural gas technologies, coupled with distributed/grid-connected energy system creation, diesel replacement solutions, electricity distribution operations, and waste-to-energy systems. Services are delivered through multiple engagement models: Independent Power Producer (SESI builds/owns/invoices), Partnership (shared investment), and Procurement (design-construct only). Transaction Advisory Services round out the offering for energy, mining, and agriculture sectors. All projects include capacity building and knowledge transfer components to ensure long-term operational sustainability.

Differentiator

Problem solved

Functional benefit

Products and services

• Commercial Power Project Development End-to-end development of commercial-scale power projects using clean energy technologies including solar PV, hydroelectric, wind, natural gas, and hybrid configurations. Covers project identification, feasibility, financing, construction, ownership, and operations for governments, communities, and institutions in developing countries.
• Distributed Energy Systems Creation of distributed or grid-connected energy systems for communities, private institutions, and public institutions. Includes hybrid configurations with renewables, battery storage, and diesel generation, plus pre-paid metering and remote monitoring to support sustainable operations.
• Diesel Replacement Solutions Design and construction of clean energy systems that reduce or replace diesel dependency in challenging environments, combining solar PV, wind, hydroelectric, and battery storage to displace incumbent diesel generation.
• Electricity Distribution Operations and Management Operations and management services for electricity distribution systems, including transmission and distribution network rebuild, pre-paid metering installation, and ongoing support to ensure reliable power delivery to end users.
• Waste-to-Energy Systems Design solutions for by-product and waste-to-energy systems intended to mitigate environmental pollution while generating usable power.
• Transaction Advisory Services Due diligence, structuring, financing, and project promotion advisory services for clients in the Energy, Mining, and Agriculture sectors, delivered alongside strategic partners.

Quantifiable outcome

• Powering 2,500 homes and businesses in Bamyan province with reliable, uninterrupted power
• +2 more outcomes

Named customers8 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• Graess Energy UZDEcoreStrategic or Co-development Partner · 1 January 2019SESI serves as Project Manager for Graess Energy UZDE 2000 MW solar project in Uzbekistan from 2019-2021. This is a flagship project demonstrating SESI's large-scale solar project management capabilities.
• German Energy GroupcoreStrategic or Co-development PartnerStrategic partner for energy projects, particularly in Uzbekistan. German Energy Group brings European energy project expertise to the partnership.
• PRPLSE NRG LimitedminorStrategic or Co-development PartnerEnergy sector strategic partner for project development and co-investment opportunities.
• Wilbahi Investments LimitedminorStrategic or Co-development PartnerStrategic partner bringing agriculture sector expertise and investment capabilities to SESI's project development pipeline.
• 3M Geo Resources LimitedminorStrategic or Co-development PartnerStrategic partner providing mining sector expertise and project development capabilities for energy-intensive mining operations.
• ErustratminorStrategic or Co-development PartnerStrategic partner for mining sector energy projects, combining Erustrat's mining expertise with SESI's energy development capabilities.
• RTI International (USAID Energy II IDIQ Consortium)coreChannel Partner/ Reseller/ DistributorSESI is part of consortium for RTI's USAID Energy II IDIQ - USAID's primary contracting vehicle for worldwide energy programs over 2019-2024. This positions SESI to access major USAID-funded energy projects globally.

Scale indicators9 records

Recent moves4 records

Expansion highlights5 records

Direct peers

• PowerGen Renewable Energy: Africa-focused mini-grid and distributed renewable energy developer operating as a project developer and IPP across East Africa. Closely comparable to SESI in business model (developer/owner-operator of community-scale renewable assets) and target market (rural electrification in developing economies).
• Frontier Energy: Solar and wind project developer focused on emerging markets including South Africa and sub-Saharan Africa, acting in developer, EPC, and IPP roles. Closely comparable to SESI's solar project development and IPP model in African markets.
• Zola Electric: Provides solar-plus-storage distributed energy systems for off-grid and weak-grid customers across Africa. Operates under both IPP and PAYG financing models with remote monitoring — a close analogue to SESI's hybrid IPP offerings and pre-paid metering approach.
• Husk Power Systems: Builds and operates solar mini-grids and hybrid power systems for rural communities in Asia and Africa, combining solar, battery storage, and intelligent load management. Directly comparable to SESI's distributed/hybrid energy model and community-engagement approach.

Broad incumbents

• juwi AG: Global renewable energy project developer and EPC contractor with utility-scale solar, wind, and hybrid projects across multiple continents. Comparable as a renewable EPC and developer competing for many of the same donor-funded and emerging-market opportunities SESI pursues.
• Cummins Inc. (Vulcan Clean Energy / Africa Clean Energy): Through Vulcan and Africa Clean Energy initiatives, Cummins invests in and develops distributed power and hybrid energy projects in sub-Saharan Africa. A broad incumbent with adjacent distributed energy and hybrid capability competing for similar DFI-funded projects.

Emerging players

• M-KOPA: Pay-as-you-go solar home system provider serving East African households with mobile-money-based financing. Comparable to SESI's PAYG metering and customer-finance elements of its distributed energy business.
• d.light: Designs, manufactures, and finances distributed solar energy products and PAYG systems for off-grid households in Africa and Asia. Comparable to SESI's distributed energy and pre-paid metering components, though more focused on pico-solar products than hybrid mini-grids.
• Nuru Energy: Develops hybrid solar-battery mini-grid systems for off-grid communities in East Africa with mobile-money pre-payment. Comparable in the hybrid mini-grid + pre-paid metering niche SESI operates in, particularly for community electrification projects.

Regional players

• SolarArise India: India-focused utility-scale solar project developer with IPP and EPC capabilities. Comparable in business model (developer + IPP) and technology focus (utility-scale solar) though geographically concentrated in India rather than SESI's broad multi-country footprint.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/sustainable-energy-services-international

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 Sustainable Energy Services International