This ‘best-seller’ is intended to help the technician operating in non-grid areas of the developing world to assess his clients’ needs, to translate these into affordable solutions, and then to teach the client to use and maintain the system. In the developed world it is a boon to anyone reasonably technical wanting to install solar photovoltaic panels, as they can accurately work out what they need, and be prepared to understand and assess the quotations they obtain. As a basic guide to doing it yourself it is excellent. 100 page paperback, heavily illustrated with B&W photos, diagrams and charts. paperback. Practical Action Publishing.