The TraditionalLarge Scale approach vs. The Wellhead approach (Small is beautiful) Iceland Geothermal Conference Reykjavik, Iceland April 2016 won the 2014 Bloomberg New Energy Pioneer Award and in 2015 nominated for the European Geothermal Innovation Award Green Energy Geothermal .April 2016 .Green Energy Geothermal Accelerating development with geothermal wellhead power plants Green Energy Geothermal Overview • Incorporated in 2008 • Solution developed in Iceland by leading geothermal scientists and engineers • Lead by experienced executive team. Latin America & the Caribbean • Delivering geothermal wellhead power plants in size 3. headquartered in London • Global company working across East Africa.5 to 20 MWe • Today 12 plants are successfully commissioned in Kenya with a combined generation capacity of 65 MWe and additional 3 plants with 15 MWe under construction • Recognized for its solution in the 2013 Global Cleantech 100. Southeast Asia. Green Energy Geothermal Accelerating development with geothermal wellhead power plants GEG geothermal wellhead power plants • • Plants can be delivered as standalone units or several units in power farms Standardized design and components.April 2016 Condenser and NCG Extraction Control System and panels Steam separator Silencer . within 12-14 months. allowing faster return on investment Cooling towers Green Energy Geothermal . optimized to individual well characteristics & output specifications • Modular design allows cost-efficient electricity generation from remote and stranded wells • Early access to revenue and lower up-front investments compared to traditional largescale developments • Containerized modules allow for rapid deployment and early revenues • Plants can be deployed and commissioned on a EPC bases. Green Energy Geothermal Solution.April 2016 . expected start of operation of last plant by June 2016 • 6 substations installed and operating Green Energy Geothermal . scalable in power farms on turn-key basis • Condensing single flash technology • Design adaptable to specific well output characteristics • Rapid deployment.6 MWe • 8 plants of 5 MWe and 4 plants of 6. early revenue GEG plants and projects • 12 plants commissioned and operating at Olkaria in Kenya with total nameplate capacity of 65.4 MWe • 3 plants of 5 MWe under construction.5 to 20 MWe. scope of supply and services GEG geothermal wellhead power plants • Plant sizes from 3. trenches. supply. excavation. quality management Supervision of GEG sub-contractors Procurement to site Preparation of installation and operating manuals Testing and commissioning. installation and commissioning of entire plant Design & engineering. incl. training of operators Additional supply and services • • • • • Main step-up transformer substations Steam system and separator for dry steam as replacement for two-phase alt. solution Diesel Generator systems Civil works. including generator-set. plant fencing with gates.April 2016 . cooling towers and related systems Electrical. control and protection system Scope of service • • • • • • Shipping. drains and flood protection Operation & maintenance Green Energy Geothermal .Green Energy Geothermal Scope of supply and service Scope of supply • • • Steam system Modular plant. April 2016 1 2 2 2 . Large modular substation (1) Mobile substation 8 MVA (2) Green Energy Geothermal .Green Energy Geothermal Additional equipment Substations and related equipment • • • GEG has developed and delivered equipment to connect our plants to the grid. 000 hrs (15 yrs) • Average availability 2014.Green Energy Geothermal Operational experience in Kenya • Total operational: 135.today: 97.April 2016 .2% Green Energy Geothermal . massive piping and infrastructure • Substantial environmental impact. . lowest pressure well dictates operating pressure • High capital/ engineering cost early in the project • Require large power installations.Geothermal power plants The traditional large-scale development approach Traditional large-scale approach Green Energy Geothermal .April 2016 • Large number of wells • Revenue generation only after full completion of plant • Development takes 4-7 years • Complex and tailor made solution • Not movable should reservoir decline • Multiple wells. April 2016 • Single or multiple wells • 1 year from contract to COD • Standardized set-up and modules mitigate project risk • Modular approach provides movability • Each well operated at optimum pressure • Limited early stage capital cost • Earlier return on investment • Small footprint.Geothermal power plants Scalable wellhead power plant approach Wellhead plant Green Energy Geothermal . low visibility and environmental impact . April 2016 .Conventional vs. wellhead plants Resource development & risk Resource development/ resource risk Conventional/ large • Large number of wells required • Complex and tailor made solution • • Wellhead plant • Single or multiple wells • Simple set up and standardized components mitigate project risk Not movable should reservoir decline • Modular approach provides movability Multiple wells. lowest pressure well dictates operating pressure • Each well operated at optimum pressure Green Energy Geothermal . April 2016 .5 to 20 MW units per well Components arrive in standard 40” containers Ease of construction. installed on site in a short period of time Faster power online. earlier revenues Utilize wells outside reach of traditional plants Potential to utilize excess steam from traditional plants Conventional Geothermal Power Plant – 50 MW Year 1 2 3 4 5 6 7 8 9 10+ 6 7 8 9 10+ Geological Research Drilling Evaluation Construction Operation GEG units – 50 MW development Year 1 2 3 4 5 Geological Research Drilling Evaluation Construction Operation Cash flow from operations Green Energy Geothermal .Green Energy Geothermal Wellhead power plant solution • • • • • • Scalable from 3. wellhead plants Faster revenues Early power online/ Bankability Conventional/ large Wellhead plant • Cash flow late in the process • Early cash flow with plant on first well • Bankable relatively late in the investment phase • • Smaller investment phases. Bankable early • Resource failure will have large consequences .Conventional vs.April 2016 .RISK • Can be relocated at relatively low cost in case of resource failure Green Energy Geothermal . wellhead plants Summary A project’s success depends heavily on: • Efficient resource risk management • Thorough preliminary investigations • Careful planning and execution • Staged capacity build up to avoid over exploitation of the resource and unpleasant unforeseen incidents • Being bankable soon in the investment phase Be Observant on the Time-Value of Money! Green Energy Geothermal .April 2016 .Conventional vs. April 2016 .Green Energy Geothermal One well pad: 3x C50. 2x C64 plants in operation. 27.8MW Green Energy Geothermal . For more details on wellhead plants of GEG see: www.co.uk .geg.