1. Development of 85KwP Solar Minigrid GbamuGbamu, 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
Land Right
& Building Permit
ESIA
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 Community profile
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.
Financing
Total project cost - NGN 200,000,,000
Grant Amount – 40%
Debt : 45%
Equity portion – 15%
KPIs
Tariff - NGN 175
Unlevered project IRR %
Equity IRR % (10 years)

9. System Design (2) - Technical Layout Grid 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.
 Grid Design
Gbamu Gbamu
Single phase LV [km]
2.7
Three phase LV [km]
2.9
Poles [no]
157

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. Thank You for Listening
Bolade A Soremekun, CEO