Development of 85KwP Solar Minigrid GbamuGbamu , Ogun State

1. Development of 85KwP Solar MinigridGbamuGbamu, Ogun State Bolade A Soremekun

2. Light emission image of Nigeria

3. Rubitec Nigeria Ltd Solar Mini Grid - Gbamugbamu

4. RUBITEC UTILITIES

5. COMMISSIONING Feb, 2018

6. Business Model: Private-Public Model Constellation of Stakeholders State Govt. Min. of Env. Equity from Rubitec ESIA Land Right & Building Permit • Financing: • Imported Generation Assets • Imported Meters • HH installations • Owned by Govt. Transfer of asset ownership to Rubitec • Financing: • Local Distribution Assets • Local Generation Assets (Diesel Genset) • (owned by Rubitec) • Labour Mini-Grid Operator Rubitec (Owns and operates all assets and recoups investment through tariffs) Rural Community & End users Prepaid electricity sales Backed by MoU with Community and Customer contracts Grant for pilot Debt Investors from Bettervest NESP Technical Assistance

7. Gbamugbamu Community – Ijebu East LCDA • Population: 4,500 • HH: 550 • Economic Activities • - Agriculture: Cocoa, Palm Oil, Kernel, Plantain, Cassava • - Milling • - Commercial • - Hospitality • - Public • - Religious • - Educational

8. Project Summary Status: Operating for 14 months Operational: The first mini-grid - in Gbamu Gbamu in Ogun State – was commissioned in Feb 2018. Community profile Gbamu-Gbamu is a large community of 550 households and 5,000 inhabitants located in Ijebu East LGA. It is an agrarian community producing, processing and trading with a wide variety of crops (cocoa, palm produce, plantain, kolanut, etc). The community is 13 km away from the Expressway Pilot project system configuration A system design based on the population of Gbamu Gbamu resulted in the following configuration of mini-grid: 85 kWp of PV, 67 kVA of Diesel Generator and 5.6 km of low voltage grid (covering 80% of the village). The mini-grid design is optimised to match the supply to the demand of the village.

9. System Design (2) - Technical LayoutGrid Design • Overhead lines split into two parts (North and South). The 2 lines are carrying approximately the same load. • Red and brown indicate three phase lines whereas single phase lines are marked blue, green and violet.

10. POWER PLANT

12. 85Kwp Solar array

13. Pre-paid meters

14. 5.2Km Grid

16. Productive Loads • INTEGRATION • Productive loads allow for economies of scale • This in turn improves the profitability • CHALLENGES • Social • Change of habits • ECONOMIC • Productive tariffs need to compete against diesel • Investment hurdle related to mechanization • TECHNICAL • Load/Demand management, e.g. avoid pumps and/or mills etc. running on batteries

17. Commercial Customers: Hospitality

18. The Minigrid Value Chain

19. THE FUTURE: What Is The Demand ? • IEA estimates that 140 M people in Africa will gain access to mini-grids in Africa. Requiring installation of 4000 – 8000 mini-grids a year in 25 years! • Nigeria: 4000 sites – 13 Million people (GIZ mapping on GIS) • Benchmark in Nigeria: Euro 572/house hold connection • Investment need in Nigeria: 2 billion Euro • Capacity need in Nigeria: 1,8 GWp

20. LESSONS LEARNT Mini Grid Development Process Training and Capacity Building – MG Skills Mini Grid Models Business Plans and Bankable Feasibility report Financing; Business Modelling Crowd Funding – long term viability? Community Relations Government Relations/Political skills/Soft Skills Logistics Productive loads allow for economies of scale This in turn improves the profitability Technology – containerized solutions, software, cost,

21. Bolade A Soremekun, CEO +234 8034499670 bolades@rubitecsolar.com b.soremekun@basconsultingltd.com Thank You for Listening