About Otibara
Otibara, formerly OTB Consult, is a sustainability consultancy founded in Lebanon in 2014. We work on energy efficiency, renewable energy, green building, cooling and climate compliance for development finance institutions, government agencies and private clients across the Middle East and Africa.
How we work
Every assignment is led by a senior consultant and staffed from a specialist bench of mechanical, electrical, civil and WASH engineers, trainers and designers, sized to the job.
Clients include UNDP, UNICEF, ILO, EBRD, Mercy Corps and World Vision.
Leadership
Nader Hajj Shehadeh
Executive Director and Principal Consultant
Nader has worked in energy and climate since 2007, across energy efficiency, green building certification, cooling and refrigerant policy, and GHG accounting. He is IFC EDGE Faculty and a Sintali-accredited EDGE auditor.
His assignments span 12 countries: Lebanon, Syria, Iraq, Saudi Arabia, Egypt, Sudan, Senegal, Mali, Burkina Faso, Cameroon, Georgia and Cyprus, for clients including IFC, GIZ, UNDP and UN-ESCWA.
Across these assignments: 3,009 kWp of renewable capacity, 430,081 tCO2 avoided, 764,067 m2 of floor area and 1,601 professionals trained. Realized figures to date.
Credentials: CEM · CMVP · CEA · ISO 14064 Lead Auditor · WELL AP · EDGE Auditor · IFC EDGE Faculty · ISO 50001 Lead Auditor. All accreditations and certifications
Education: B.E. Mechanical Engineering; MBA, Notre Dame University, Lebanon; MSc International Business, Kedge Business School; CAS in Management of Development Projects, EPFL.
Accreditations
IFC EDGE Faculty
IFC · since 2026
Certified Energy AuditorCEA
AEE · since 2021
Certified Measurement & Verification ProfessionalCMVP
AEE · since 2020
Certified Energy ManagerCEM
AEE · since 2017
ISO 14064-1, 2, 3 Lead Auditor
SGS · since 2026
EDGE Auditor
IFC / GBCI · since 2020
WELL AP
GBCI / USGBC · since 2020
ISO 50001:2018 Lead Auditor
SGS · since 2021
EDGE Expert
IFC / GBCI · since 2018
Certified Carbon Auditing ProfessionalCAP
AEE · since 2020
Performance Contracting & Funding ProfessionalPCF
AEE · since 2022
LEED Green Associate
GBCI / USGBC · since 2013
City Climate Planner
GBCI · since 2019
TRUE Zero Waste Expert
GBCI · since 2018
Fitwel Ambassador
Center for Active Design · since 2020
Certifications
Certified RETScreen ExpertCRE
CIET · 2020
Residential Energy Auditor, Foundation Level
CIET · 2021
511 IPCC: Energy, 2006 IPCC Guidelines
GHG Management Institute · 2018
501 IPCC: GHG Inventory Cross-cutting Issues
GHG Management Institute · 2017
Solar Resource Assessment and PV Engineering Trainer
RenAc · 2015
Certified Renewables Grid Manager
RenAc · 2014
Integration of Large Shares of Renewables in Grids
RenAc · 2013
Organizational Capacity Development
MDF · 2015
Certified Sustainable Gas Expert
RenAc · 2015
Low Carbon Policy & Planning
IEA · 2011
Listings
Sintali
Schedule of Auditors, EDGE certification body · since 2024
Islamic Development Bank
Consultant roster · since 2026
European Bank for Reconstruction and Development
Advice for Small Businesses, pre-qualified firm · since 2022
European Bank for Reconstruction and Development
Advice for Small Businesses, pre-qualified consultant · since 2018
Climate Technology Centre and Network, UNEP
CTCN network member · since 2018
UN Women and UN Global Compact
Women's Empowerment Principles, CEO statement of support · since 2024
Global Waste Cleaning Network
Registered member · 2022 to 2026
Lebanese Center for Energy Conservation
Qualified ESCO and Qualified Energy Audit Company · 2020 to 2021
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