2 17% of the global population are without mains electricity. That’s over 1.26 billion people! About Us SD Wind Energy is a global market leader in the design, manufacture, supply and installation of small scale wind turbines and off-grid energy systems. First established in 1980, our product range is the result of over 30 years’ research, development and innovation. SD Wind Energy offers unrivalled wind power solutions the world over - with over 5,000 installations in over 70 countries and on every continent. Whether for business solutions, domestic applications, offshore developments, community power stations or remote stand alone systems, our track record is unrivalled. A Unique Delta Rotor Design Our small wind turbines regulate their own speed. As the wind gets stronger, the blades pitch and cone to protect the rotor and ensure a high output even in the fiercest storms, unlike alternative turbines which need to be put on brake to protect themselves. This unique downwind technology is what sets us apart from the rest and ensures customers achieve maximum energy yield at all times. SD Wind Energy has been supplying small wind turbines around the globe with many of our early systems now entering their third decade of operation. About Us 2 Introduction 3 Worldwide Installations 4 Technical Specification (SD3 & SD6) 6 Sizing & Load Demand 8 Case Study: Agricultural/Domestic 10 Case Study: Remote Island Community 12 Case Study: Telecommunications 14 Case Study: Rural Electrification 16 Case Study: Cold Climate 18 Case Study: Offshore Oil & Gas 20 Case Study: Coastal Marine 22 Battery Sizing & Selection 24 Charge Controller & Example Schematic 25 Hydraulic Towers 26 Foundations 27 Additional System Components 28 Manufacturing 29