role of the state institutions in promoting renewable energy

8/12/2019 Role of the State Institutions in Promoting Renewable Energy

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Noel Priyantha

Chief Engineer (Renewable Energy)

Ceylon Electricity Board

20 February, 2014

Non Conventional Renewable

Energy Development in Sri Lanka

- Role of the CEB as a Facilitator


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Introduction

Sri Lanka Power Sector

Present Policies on Non Conventional Renewable

Energy (NCRE)

Conventional & Non Conventional power plants

NCRE Development in Sri Lanka

Limitations & Current Issues

Future of NCRE


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Ministry of Power & Energy

Ceylon Electricity Board(CEB)

Lanka Electricity Company(LECO)

Independent PowerProducers (IPP)

Regulator: Public UtilitiesCommission of Sri Lanka

(PUCSL) Sri Lanka Sustainable

Energy Authority (SEA)

Ministry of P & E

CEB SEALECO

IPPGen. Tr. Dist.Dist.

PUCSL

Regulator


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Country population21.4 million (July 2011 estimated)

No. of electricity customers4.9 million

Household Electrification Level94 %

Gross Generation11,801 GWh

Maximum Demand2146 MW (2012)


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Sri Lanka electricity demandAverage Growth Rate: 6.5 %

Year Demand Gross* Losses Generation Peak(GWh) ( ) (GWh) (MW)

2013 11402 14.9 13402 26882014 12149 15.1 14315 28532015 12941 15.1 15238 30352016 13773 15.1 16220 32112017 14630 14.8 17168 33972018 15530 14.6 18188 36042019 16481 14.4 19257 38202020 17489 14.3 20397 40512021 18563 14.6 21741 42582022 19708 14.4 23019 45132023 20932 14.3 24436 47962024 22242 14.2 25922 50922025 23647 14.2 27559 5418


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Ceylon Electricity Board (CEB)

CEB established by the Sri Lanka Act No. 17 of 1969

CEB is a Statutory Body responsible for Generation,Transmission & Distribution of electricity in Sri

Lanka

CEB is a vertically integrated power utility until 1997with a monopoly on Generation, Transmission &

Distribution

In 1997 Generation was opened for Private Sector(IPP)This is based on the GOSL policy


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Power Sector Policy Directions 1997

Hydro power generation potential of the country willbe developed to its full potential

All large scale hydro power generation facilities areto be remain under the governmental control (i.e

CEB) Private sector financing will be utilized for power

generation from renewable energy sources

( development of small power plants maximumcapacity up to 10 MW per project)


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Sri Lanka National Energy Policy

National Energy Policy Target: 10 % of gridelectricity from the Non Conventional RenewableEnergy (NCRE) by 2015

Mahinda ChinthanaFuture Vision

20 % of grid electricity from NCRE by 2020


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Conventional Non Conventional

Hydro with Reservoir, Thermal Power

Firm, Dispatchable

Mini Hydro, Wind, Solar

Non Firm, Non Dispatchable


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Installed capacity in MW

(as at 31/12/2012) including IPP plants

CEB Hydro 1357

CEB Thermal - Oil

CEB Thermal - Coal

544

300

IPP Thermal 784

TOTAL 2,985 MW

Conventional power plants

Source: CEB Statistical Digest 2012


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Classification of

Non Conventional Renewable Energy Plants

Grid Connected:

Connected to the integrated electricity distribution

grid and deliver electricity exclusively to the grid

Off- Grid: Operate in isolation


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NCRE Technologies

Mini Hydro

Wind

Biomass (Dendro)

Municipal Solid Waste

Solar

Waste Heat Recovery


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CEB standard documents to the private sector investors

Guidelines for Private Sector Participation in NCREprojects

Standardized Power Purchase Agreement (SPPA) forNCRE projects

CEB Guide for Grid Interconnection of EmbeddedGenerators (December 2000)GRID CODE


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CEB facilitation role as a energy purchaser

Issue of Letter of Intent to build up theconfidence of the private sector investor

Facilitate interconnection arrangements

Sign SPPA - to attract investments (This is a

bankable document) Facilitate to get Tax Exemptions introduced

by the GOSL (Ex: VAT, NBT exemption)

Allow developer to build the interconnection

facilities under CEB supervision Witnessing the Testing & Commissioning

Payments as per SPPA terms


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Present Status of Non-Conventional Renewable Energy

(NCRE) Sector as at 31stDecember 2013

No Description Project Type No. of

Projects

Capacity

(MW)

1. Commissioned

ProjectsMini Hydro Power 128 270.932

Biomass-Agricultural &

Industrial Waste Power2 11.000

Biomass- Dendro Power 2 5.500

Solar Power 4 1.378

Wind Power 10 78.450

Total - Commissioned 146 367.260

2. Standardized Power

Purchase Agreements(SPPA) Signed

Projects

Mini Hydro Power 55 134.640

Wind Power 5 41.100

Biomass-Agricultural &

Industrial Waste Power2 4.000

Biomass-Dendro Power 10 56.770

Biomass-Municipal Waste 1 10.000

TotalSPPA Signed 73 246.510


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Annual Energy Contribution from NCRE

0.6%

1.0%1.5% 1.6%

2.6%

3.2%

3.7% 3.5%

4.4%

5.5%

6.8% 6.3% 6.3%

0

100

200

300

400

500

600

700

800

2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012

Percentage

from Total

Generation

Energy

GWh

Year


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Daily Load Profile : 25 October 2013

0

500

1000

1500

2000

2500

0 2 4 6 8 10 12 14 16 18 20 22 24

MW

Hrs


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NCRE absorption limit (considering the

total power system and load profile)

Grid substation absorption limit31.5

MVA transformer can absorb only 25 MWof NCRE projects

Line limitationsneed augmentation of

lines & construction of long lines

Limitations of absorption of NCRE


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Impacts on the Power System

Stability Issues

Operational Issues

Safety Issues

Power Quality Issues


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Electricity Network with Distributed Generation


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What are the solutions ?

Improvement of National Load Profile (may be

with the current development program of the

country)

Augmentation of grid substations to absorption

of NCRE

Introduction of NCRE collector GSS ( already

done in Puttalam to absorb wind power)

Construction of long lines to absorb NCRE (need

a policy decision)


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Future: Interconnection optionsIndia and Sri Lanka


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CEB/SPPA.bst

Net Metering

Sri Lanka introduced the net metering

system to electricity customers

Maximum capacity limit42 kVA(Good Newsextended up to 1 MVA)

Difficult to promote due to high cost

of Solar PV


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hank YouCeylon Electricity Board

Web: www.ceb.lk

role of the state institutions in promoting renewable energy

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