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Micro-power Generation in Africa Harold Anuta and Andrew Crossland December 2012

Micro-power Generation in Africa Harold Anuta and Andrew Crossland December 2012. Harold. Andrew. About us. How does the UK power system work? How does that compare to Africa? How can distributed generation be used in Africa? How is our work relevant?. Power stations. Customers.

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Micro-power Generation in Africa Harold Anuta and Andrew Crossland December 2012

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  1. Micro-power Generation in Africa Harold Anuta and Andrew Crossland December 2012

  2. Harold Andrew About us

  3. How does the UK power system work? • How does that compare to Africa? • How can distributed generation be used in Africa? • How is our work relevant?

  4. Power stations Customers

  5. How does the UK power system work? • How does that compare to Africa? • How can distributed generation be used in Africa? • How is our work relevant?

  6. United Kingdom DR Congo Energy Top Trumps

  7. Rwanda Belgium Energy Top Trumps

  8. “Only about one-fifth of the Sub-Saharan population has access to electricity” (AICD Flagship Report, 2009) Off-grid/microgrid electricity networks may be a viable and affordable alternative to large investments in network infrastructure

  9. How does the UK power system work? • How does that compare to Africa? • How can distributed generation be used in Africa? • How is our work relevant?

  10. Generation Technologies

  11. Hydro http://www.youtube.com/watch?v=iHBRf2bUNXU

  12. Solar

  13. (Electric) Generators

  14. Micro Gas-Turbines

  15. Wind Turbines http://www.youtube.com/watch?v=wGe65xwd-0c

  16. Micro-grid vs. Micro-generation

  17. Micro-generation Micro-grid Micro-grid

  18. Micro-generation Microgeneration involves heat and/or electricity production from mostly low carbon sources by individual households, small businesses or communities Makes use of distributed generation technologies Solar photovoltaics and thermal systems Micro-Turbines Micro-Hydro Fuel cells Combined Heat and Power Internal combustion engine

  19. Micro-grid • Small power distribution system connecting multiple customers to one or more distributed generation units and storage • Localised power generation independent of bulk power grid • Micro-grids were main form of power pre 1950 in most parts of the world • Industrialisation and government policies led to move towards a centralised bulk power system • Major advantage is multiple fuel sources Micro-grid

  20. However... The reality isn’t so simple

  21. What is an electrical power system? • How good is the electrical system in Africa? • What role can a micro-grid play in Africa? • How is our work relevant?

  22. Solar for Health http://www.youtube.com/watch?v=qOxF7Bz8Tso

  23. High solar irradiance in Rwanda; • Falling costs; • Low environmental impact; • Easy to maintain; • Can be used off grid with batteries.

  24. “In stand alone PV systems special attention must be paid to the battery bank… the weakest component of the system and the highest contributor to its life cycle cost” (IEA, 2002)

  25. Battery voltages; • Autonomy; • Condition monitoring; • Usage pattern.

  26. What next for us?

  27. How does the UK power system work? • How does that compare to Africa? • How can micro-grids be used in Africa? • How is our work relevant?

  28. Thank you for Listening Any questions?

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