Presentation ICEED2013

1st Intern. Conference on Environment, Energy and Development (ICEED 2013)

ENERGY SECTOR OVERVIEW &

RESEARCH INTERVENTION

Marcel GAKUBAHead - SRDU

07/08/2013


Outline

• Introduction• Biomass-Biogas• Geothermal• Hydropower• Methane • Peat to Power• Solar Energy• Transmission & Distribution

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Introduction

• EWSA constitutes (former RECO – Rwanda Electricity Company & RWASCO – Rwanda Water & Sanitation Company, and Energy, Water and Sanitation Projects of MININFRA – Rwanda Ministry of Infrastructure)

• Created by Law no 45/2010 of 07/12/2010 to ensure adequate and quality electricity, water and sanitation services in Rwanda at least cost through effective planning, investment, contracting, supply, operations and maintenance.

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Introduction

GoR through EWSA plans to explore and develop around 610 MW (current we have 110 MW) of power generation by the year 2017.

Source Current/MW Added by 2018 /MW

Total /MW

Hydropower 41.95 71 112.95Methane gas 4.2 79 83.2Geothermal - 60 60Peat - 260 260Solar 0.25 10 10.25Import 16.5 40 56.5Thermal 47.8 -20 27.8

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Biomass

• Trainings on Improved charcoal carbonization techniques • Trainings on manufacture

and use of Rural Improved Cookstoves. • Trainings on manufacture

and use of Urban Improved Cookstoves Program

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Biogas

Green•It is renewable •It does not emit soot (CO2) when cooking and it favours cleanliness in the kitchen •Bio-effluent is a good fertiliser

Sustainability•Biogas plant normally lasts for 20 to 30 years •We train masons for construction & maintenance of domestic & institutional biogas- in all Districts •User training is provided to household owning biogas•Provision of after sale services for a period of 1 year

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Biogas

Domestic Biogas• One cow approx. gives 20 kg/ day of dung• Min. size of the Biogas Plant is 4 m3 (2 cows)• Maximum Domestic Biogas Plant has capacity

of 10 m3

Institutional Biogas • Design based on the group size of people or

animals• Minimum size is 10 m3

• The largest is in Ntsinda Prison- 1200 m3

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Biogas-Research Intervention

• Bio digesters Construction Cost reduction• Research on Bio-effluent as good fertiliser• Updating the existing biogas models in terms

of gas production.

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Geothermal

GEOTHERMAL DEVELOPMENT

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Geothermal

• The potential for power generation is estimated to be about 700 MW

• Surface exploration and reconnaissance studies have been carried out in the Western & Northern regions

• Detailed surface studies were conducted & drilling of three exploratory wells started on July 18, 2013 at the Karisimbi Geothermal prospect

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Geothermal-Research Intervention

Surface Manifestation studies• Geology• Geochemistry• Geophysics• Hydrology

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Hydropower

Existing Hydropower Electricity• Rwanda presently has about 44.8MW of mini and

small hydropower plants in operation • It imports 15.5 MW from regional projects Rusizi I

and II

Ongoing on Projects• 10.9 MW of mini and small hydropower plants are

under construction in advanced stages• 28 MW Nyabarongo I plant is under construction

(14 MW late this year & 14 MW early 2014)

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Hydropower

Regional Potential Projects• Rusizi III is a 145 MW hydropower project shared by

Burundi, DRC and Rwanda (48 MW Rwanda share), and is structured as a PPP.

• Rusizi IV is a 287 MW hydropower project (96 MW Rwanda share) has a pre-feasibility study completed, and may be developed as a PPP.

• Rusumo Falls, a 80 MW hydropower project, is to be publicly developed by Tanzania, Burundi and Rwanda (27 MW Rwanda share), and privately managed.

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Hydropower-Research Intervention

• Water resource management (Hydrological modelling of river behaviour and sediments analysis)

• Feasibility studies of pico and micro hydro • Model for management of off grid micro

hydro power plants • Scientific guidance on manufacturing of

pico turbines

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Methane Gas

Why Extract methane (Lake Kivu)?• The Methane Gas deposits in L. Kivu are estimated at

50 – 60 Billion m3

• These deposit could produce about 700 MWe of electricity for about 55 years.

• By removing the methane, the extraction will reduce the potential risk of gas eruption in the lake.

• Methane could potentially be used for Electricity Generation, Gas to Liquid (Kerosene, Diesel, Jet fuel), and Fertilizer (Urea) plants

• Reserves are equally shared between DRC and Rwanda 07/08/2013


Methane Gas

Projects•KivuWatt’s 25 MW Phase I is to be completed by end 2013 •The 75 MW 2nd Phase will be developed contingent on successful operations of Phase I. •REC is seeking partners and financing to revive its plant and scale it up to 50 MW. •GoR’s 4.2 MW KP1

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Methane Gas

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Methane Gas – Research Intervention

• Mass Extraction of Gas• Lake Stability due to Gas Extraction

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Lake Kivu Monitoring

The monitoring consists of the 3 main tasks:1.On-plant inspections:

Inspect the plant for safety and environment Monitor the on-plant operation

2.Near-plant monitoring: Follow the re-stratification of the re-injected water

3.Lake wide and long-term monitoring: Follow the development of the methane resource Ensure the maintenance of the physio- geochemical

stratification Check the ecological integrity of the lake

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Lake Kivu Monitoring

Laboratory & EquipmentFully equipped Lab.

(analysis of nutrients, gases in the lake and on extraction facilities)

2 Weather Stations installed (Rubavu & Karongi )

1 research boat

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Peat to Power• A Peat Master Plan indicates an estimated

reserve of 155 million tons of dry peat spread over about 50,000 hectares

• The estimated potential is equivalent to 1,200MW

• About 77% of peat reserves are in the southern Province

• For 100MW of power estimates shows that around 1500 ha is needed depending on thickness of peat layers and quality of the materials.

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Peat to PowerPeat to Power development status•GoR is developing a 15 MW peat-to-power in Bugarama, Rusizi district. •GoR has negotiated PPA with two Energy Investors for peat to power development projects

• Hakan (Turkey) to develop & manage a 100 MW PP in Gisagara district, Southern Province

• Punj Lloyd (India) to develop and manage a 100 MW Peat Power Plant (FS Stage)

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Peat- Research Intervention

• Characteristics of peat bogs (moisture content, calorific value, ash content,…)

• Identification of substituting wood by peat (especially in the institutions)

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Solar Energy

• Rwanda is characterised by Savannah climate- solar radiation intensity approx. equal to 5kWh/m2/day and peak sun hours of approximately 5 hours per day.

• Existing projects include a 250 kWp grid connected solar plant (since 2007).

• On July 22,2013, GigaWatt Global signed a PPA with GoR for development of 8.5 MW solar power plant in Rwamagana District

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Solar Energy

Solar Water Heaters (SolaRwanda) Program •The SolaRwanda Program is scheduled for a period of four years (2012-2015). • The objectives & targets of SolaRwanda Program is to promote the widespread use of solar water heaters in residential sector through financial incentives, and other support measures, •Subsidy of 186,000 or 279,000RwF for 200 or 300 L SWH •Goal = 12,000 SWH by the end of the year 2015 with a total estimated yearly saving of 23,328 MWh

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Solar Energy

PV installations in 300 Schools ( 0.74 kW each)

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Power TransmissionDomestic Lines Existing • 365.2 Km HV lines (110 & 70 kV)• 2,801,083 Km MV lines ( 30, 15 & 6.6 kV)• 8,361,363 Km LV

Regional interconnections (Projects) • 220 kV Karongi – Rubavu – Goma – Mukungwa –

Birembo TL (Rwanda-DRC interconnection) • 220 kV Mbarara – Birembo TL (Uganda-Rwanda) • 220 kV Kigoma- Huye – Gitega TL (Rwanda-

Burundi)

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Power Transmission

• Loss reduction of distribution network• Impact of introducing single phase

distribution system on entire network • Research on national grid frequency

control system

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THE [email protected]

www.ewsa.rw

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Presentation ICEED2013

Business

Transcript of Presentation ICEED2013