Building Infrastructure to Last_

About ASD_

The ASD team offers years of experience in the energy sector and a strategic mix of  technical, management and project development capacities.

ASD works with a wide range of clients including governments, donors, private clients and community groups. ASD has developed unmatched networks within the African renewable, rural electrification and development sectors.

Our Nairobi-based team offers excellent experience in the regional electrification sector. ASD understands on- and off-grid electrification technologies, policies, market trends, key players, and the challenges facing market development. We know what works for Africa.

For our commercial clients, we provide top-tier feasibility studies, system design, installation and after-service support.  ASD enters every new relationship ‘technology agnostic’, with no prescription until our experts have assessed the client’s specific needs.

We have a unique understanding of energy access and community development. We work with communities to develop sustainable business models and technical solutions that meet changing rural electrification needs. Through our work, ASD has seen the successes of private sector approaches to energy access. Our team has been active in the field across 20 countries for over 30 years.


Working towards a prosperous Africa powered by accessible clean energy


ASD provides reliable, modern and intelligent renewable energy solutions to build green economies, sustainable living and rural access.

Leadership Team_

Clean Energy is in the DNA of our leaders


    Mark Hankins has been a pioneer in in rural electrification and renewable energy in East and Southern Africa for over 25 years.  He has worked for private clients, the UN, the World Bank, UNIDO, the GEF, Sida, USAID and others. As MD of African Solar Designs, Ltd., he is a permanent resident of Kenya with both advisory and engineering skills. In the PV sector, he specializes in training, commercial market development, policy, system engineering and project development.  An author of 5 books on solar energy and renewables, he has worked on off-grid electrification projects in over 20 countries in Africa.

Rafael has over 10 years of experience in project development and management, most of which have been in the environment and renewable energy sector. He has specialized skills in renewable energy, energy access, and utility-scale RE projects with extensive project management experience in the development of energy and infrastructure projects such as integrated bioethanol and bagasse cogeneration plants, biomass, wind, solar and hydropower facilities, as well as engineered sanitary landfills.

Currently based in Nairobi, he is providing advisory and technical work on various energy access programs and projects, and manages the business development of ASD.

Isaiah Gitau is a determined worker with vast experience in business management, finance and accounting. Gitau attained his BBA degree in Business Management and Finance at Saint Paul University, and is currently pursuing an MBA degree at Saint Paul University as well.

In addition, he has also attended financial, HRM and Taxation courses. Gitau has been a key resource in offering day to day office management and support to ASD staff and its clients. He has been involved in project management, project logistics, procurement, crises management and advising on project taxation, HRM and operations.

Mark Hankins

Rafael Diezmos

Isaiah Gitau Kariuki

CEO & Founder

Senior Energy Analyst

Office Manager

Benard has over 9 years of proven experience in the energy and ICT industry including technical consulting, engineering management, energy and network design, project management and high level troubleshooting.

He has a bachelor degree in Electrical and Electronic Engineering from the University of Nairobi and a holder of Energy Regulatory Commission T3 PV Solar license.

Dorcas has over 8 years of experience in administration and management. She has a Bachelor’s Degree in business administration and management from St. Paul's University, Kenya.

In her role as a project management officer at African Solar Designs (ASD), Dorcas fosters an environment of teamwork and ensures effective project management while maintaining company morale. Her strong communication and client service skills enhance ASD’s process-driven management philosophy.

Ruhiyyih Rahman André attained her BA in Global Development Studies and French double major with a minor in African Studies from the University of Virginia. She is now a devoted professional to renewable energy access. With experience in marketing and project management, her efforts contribute to overall business development, marketing strategies and project development.Ruhi has covered a range of projects within ASD from off-grid energy access work to market assessments, proving to be a strong Energy Analyst. Ruhi has spent 18 years in the African region and is thus familiar with the African context. More specifically, she has established her professional career in East Africa.

Bernard Keitany

Dorcas Wairimu

Ruhiyyih Rahman André

Senior Energy Engineer

Project Management Officer

Business Development

George is an electrical engineer who brings experience working in both government and non-government projects involving design and construction of renewable electricity projects in Kenya. He has conducted feasibility studies, project design and planning, implementation and maintenance. He has solar technician certification (Class T3) and electrician certification (Class C1) from Energy Regulatory Commission (ERC). He has a Bachelor of Science degree in Electrical and Electronics Engineering (Power Option) from Dedan Kimathi University of Technology as well as Advanced Solar Training Certificate from Solar Energy International (SEI).

Titus is an electrical engineer by profession. He has dealt with power transmission, distribution, and industrial automation (PLC & SCADA). Titus is skilled in the design of off grid PV systems and attained his bachelor’s degree in Electrical & Electronics Engineering at Moi University.


Faith is an administrative assistant at African Solar Designs (ASD). Faith is a capable, determined, and confident administrative assistant with extensive experience in supporting mid and senior level managers by providing them with consistent clerical support. She is a highly approachable individual who has a pleasant attitude and willingness to make a positive mark.


George Otula

Titus Koech

Faith Musangi

Solar Engineer

Support Engineer

Administrative Assistant

Core Values_

Let's talk_

Contact us to inquire about pricing.




PO Box 18092 - 00100

Nairobi, Kenya

T: +254 (0) 20 2187691



Case Studies






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