In 1995, the British company, ESD Ltd, won a large project under PHARE Program “Technical and Economic Assessment of Renewable Energy Sources (RES) potential in Bulgaria”. After the successful completion of the project, ESD Ltd, in cooperation with the Bulgarian consultants, established ESD-Bulgaria.

ESD-Bulgaria is registered on the 17th March, 1998, as consultancy company, providing expertise in the field of renewable energy and energy efficiency, co-generation, sustainable development and environmental preservation.

In the period 1998-2009, as part of the British company ESD/Camco (currently called redT energy), one of the leading environmental companies in Central and Eastern Europe, China, USA and Africa, and after 2009, as affiliate of Camco, ESD-Bulgaria has developed and implemented a number of important, for Bulgaria, projects.

2001 – first JI project under the Kyoto Protocol, and the second in Central and Eastern Europe. This project involved installing major boiler to be operated using biomass waste replacing coal while, reducing considerable amounts of methane from the decomposition of biomass waste. ESD-Bulgaria, in co-operation with ESD/Camco (currently called redT energy), developed the project documentation and assisted in the carbon purchaser, the Prototype Carbon Fund (PCF), managed by the World Bank and Sviloza AD to sign the contract.

2002 – ESD-Bulgaria, in co-operation with ESD/Camco(currently called redT energy), set the energy planning scheme in Bulgaria, with the development of Methodology for Energy Planning and Strategy for Sustainable Development. Local Sustainable Energy Planning (LSEP)  is an innovative approach, based on decentralized local planning, uniting local stakeholders to select and implement systems and installations for sustainable energy  generation, distribution and consumption. The methodology is a combination of mathematical approach and various view points, objectives and perspectives, in response to the current energy and economic demands of the society and the business and their impact on the environment.

2004 – working in partnership with ESD/Camco(currently called redT energy), ESD-Bulgaria, developed Central and Eastern Europe’s first Tradable Green Certificate (TGC) scheme to promote the rapid acceleration of renewable electricity in Bulgaria’s energy system. This, and other work ESD-Bulgaria has undertaken, has helped to shape the Energy Law and various legislation that supports renewables, energy efficiency and energy performance and standards in buildings. ESD-Bulgaria has also developed and provided methodology and software, to the Ministry of Energy and the State Energy Regulator, for preferential purchase prices of electricity from renewable energy sources.

2001-2014 – ESD-Bulgaria performed energy audit of over 200 sites (schools, hospitals, kindergartens, administrative and commercial buildings) in Bulgaria, United Kingdom and South Africa.

2006-2014 – ESD-Bulgaria was certified by the Bulgarian Agency for Sustainable Energy Development (ASED) (former State Energy Efficiency Agency) to perform energy audits in buildings. As of 2014, ESD-Bulgaria is not accredited by ASED, however the ESD-Bulgaria experts work in close co-operation with leading Bulgarian companies, accredited by the ASED, for performance of energy audits in buildings and industrial enterprises and offers its clients comprehensive technical and economic analyzes and solutions.

2009 – ESD-Bulgaria is the first Bulgarian company, to support the European initiative for clean development and sustainable green societies, by including in its portfolio environmental impact assessment, through development of carbon footprint of organization, activity, service, event, product,  including carbon calculator, consistent with the activities and the objectives of the client.

2012-2015 – As Verification Assistant, ESD-Bulgaria, in cooperation with KPMG – Bulgaria verified more than 400 projects under project “Monitoring and verification of activities for the contracts, signed under procedure “Energy Efficiency and Green Economy”, under Operational Program “Development of the Competitiveness of the Bulgarian Economy 2007 – 2013”.

From 2000 until present, ESD-Bulgaria has developed a number of specialized methodologies and computer models for assessment of Green House Gas (GHG) emissions trading; feed-in tariffs for promotion of electricity generation from renewable energy sources; methodology for sustainable development and reduction of energy dependency;  methodology and software for energy management and monitoring of energy efficiency indicators in industrial enterprises.