Towards Full Electrification Coverage by 2025

Kyoto University – University of Malaya (KU-UM) Rural Electrification Workshop

24 June 2019

Sarawak Rural Electrification

Chen Shiun, PhD., Vice President – RE Barry Law, Manager – RES Project & Planning Christopher Wesley Ajan, Manager – Sarawak Alternative RES

About Sarawak Energy

Our vision: To achieve sustainable growth and prosperity for Sarawak by meeting the region’s need for

reliable & renewable energy

Our values:

Courage Unity Respect Integrity Accountability

About Sarawak Energy

Started in 1921 as a unit in Public Works Department and is now a fully integrated energy development company and power utility wholly owned by Sarawak Government

Workforce 5,000 strong multidisciplinary team and largest employer of professional Sarawak talent

Lowest tariffs in Malaysia and amongst the lowest in ASEAN

Serving close to 3 million people across largest state in Malaysia. 680,000 accounts covering domestic, commercial, industrial and export customers

Largest generator of renewable energy in Malaysia 74% drop in carbon emission intensity for electricity production

75%

Electrified 110,000 rural households since 2009

5,449MW

2020

7,115MW

2025

500 kV

Balingian

Tg Kidurong 1

Interconnection West Kalimantan

Interconnection Sabah

Baleh

1,335MW

2010

Balanced Generation Mix Predominantly hydro and thermal for energy security

Tg Kidurong 2 8%

45% 36%

9%

2% 1%

73%

13%

10%

2% 1% 0.3%

63% 15%

20%

1% 1%

67%

17%

16%

1%

4,701MW

2017 Generation Type

Rural Electrification Coverage

• Starting with NKRA in 2009, rural electrification in Sarawak received intense focus and the coverage has grown significantly to 90.8% by end of 2018

55.9%

61.6%

64.1%

71.1%

74.5%

79.0%

82.8%

87.1%

89.8% 90.8%

92.5% 94.7%

96.7% 98.4%

99.6% 100.0%

0

2,500

5,000

7,500

10,000

12,500

15,000

17,500

20,000

22,500

55%

60%

65%

70%

75%

80%

85%

90%

95%

100%

2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Ho

use

ho

lds

elec

trif

ied

in

eac

h y

ear

Co

vera

ge P

erc

enta

ge

RES Hybrids SARES Coverage

5

97% by 2020

Allocated fund approximately RM4b RM2.37b RM660m

Categories of un-electrified villages/ Villages Households

Cat. 1 – Grid Connectible 253 4,747

Cat. 2 – Grid Possible but Need Access 543 10,614

Cat. 3 – Remote Not Grid Connectible 191 5,296

Total 987 20,657

Full Electrification by 2025

Utilise EHV infra

Community solar

56%

2009 2018

91%

Accelerating Rural Electrification Projects

• To electrify 20,000 more households by 2020 • Rural coverage increases to 97% (statewide 99%)

• Total funding amount of RM 2.37 billion + RM 80 million

Expansion of grid infrastructure to rural areas

• For villages near to grid and/or more accessible by roads Grid

• EHV and MV Substations: 2 EHV and 9 MV substations at strategic locations as reliable sources of energy at rural areas

• MV Covered Conductor Lines: 33kV lines connecting main grid to new MV substations at rural locations

• RES Last-Miles: HT/LT lines that link up the rural villages to existing grid or new MV substations

Stand-alone systems for rural and remotest villages

• For those unreachable (not practical or economical) by grid infrastructure Off-grid

Additional or Late Applicants

• Distribution and service lines to new houses in the already-electrified villages ALAF

11

4

5

8

7

9

2

1 10

3

RPSS & RES A. Rural EHV Substations 1. Tatau 275kV 2. Kanowit 132kV B. Rural MV Substations 3. Sangan 4. Batang Ai 5. Ngungun 6. Julau 7. Pakan 8. Dalat 9. Tinjar 10. Sebauh 11. Bakelalan

SARES D. Off-Grid 12. Ulu Julau 13. Katibas/Bangkit/Tekalit 14. Bukit Mabong 15. Ng. Merit/Punan Bah 16. Telang Usan 17. Mulu/Bario

6

Grid & Off-grid Project Locations

Tatau 275kV Substation

Kanowit 132kV Substation

To reach 97% rural and 99% state-wide coverage • Grid-connect 800 villages • SARES systems for 200 villages

1

2

3

4

6

7

8

9

10

11

12 13

14

15

16

17

5

Grid Infrastructure Implementation

Phase 1 Phase 2 Phase 3

20 332 286

4,423 6,690 4,918

Q1/2019 Q2/2019 Q3/2019

Q2/2019 Q3/2019 Q4/2019

Q3/2019 - Q2/2020 Q4/2019 - Q3/2020 Q1/2020 - Q4/2020

9

RES Last Miles

Villages:

Households:

Survey & design:

Tender award:

Implementation:

EHV & MV Substations

2 EHV substations have been

awarded in Apr/May 19

2 MV substations have been

awarded in May/19

3 MV sub. tenders in Jun/19;

2 more each in Jul & Sep/19

MV CC Lines

• 4 tenders in May/Jun 19

• 4 more in Q3/Q4 19

Other Initiatives RURAL ROAD LIGHTING (Lampu Jalan Kampung-LJK) • Sarawak Energy is the government appointed

implementing agency to install road lightings along rural roads

INTERNAL HOUSE WIRING (IHW) • Sarawak Energy provides 3-year

zero interest payment plan for rural customers on IHW

• Subsidized meter fee from RM150 to RM80

CORPORATE SOCIAL RESPONSIBILITIES (CSR) • Sarawak Energy offers various CSR programs

in support of the rural communities and other government initiatives

11

TEMPORARY SUPPLY • Fast solution of temporary

relief for rural communities whilst waiting for permanent supply

RURAL TRANSFORMATION PROGRAM (RTP) • Small/medium one-off

projects for betterment of rural towns

OTHERS • Electricity connections to

rural schools, rural clinics and telco towers

• Electricity connections to individual rural houses via Additional and Late Application Fund

R&D Initiatives in Rural Electrification

MV Overhead Line Covered Conductor • Introduced to replace the conventional bare

overhead line • Robust and transient fault-proof against bad

weather, vegetation and animal contact • Minimize easement for construction • No Ferranti Effect

Service Substation Voltage Transformer (SSVT) • EHV to LV stepdown to

supply rural communities residing in proximity to EHV overhead lines

• Under conceptual study

Micro Grid Solar Hybrid Station Standalone micro grid providing electricity to rural villages, schools, shops and offices Most of the stations are designed to operate autonomously without on-site crew Utilise satellite telecommunication to monitor equipment conditions and performance of subsystems from a remote location

Solar/Microhydro Hybrid Stations

• Deployment of renewable energy systems at remote and rural areas

• About 8 MWp of solar installed capacity

• Year 2015: first solar hybrid station commissioning in Sarawak

• 39 solar hybrid stations installed to date

• Currently providing 24/7 electricity (no limit) to 78 villages with about 3,126 households

• 1 microhydro hybrid station at Long Banga of 640kW of hydro, supplying to 5 villages

0

2000

4000

6000

8000

2013 2014 2015 2016 2017 2018

Sola

r In

stal

led

Cap

acit

y (M

Wp

)

SARES Community Based Solar Schemes

• Villages in remote locations where state grid currently not possible

• Simple design and ease of O&M

• Limited disposable household income

• No charge/bill for electricity used

• Technical Support provided

SARES Capacity

• Power capacity 700 – 1000 W per household

• Daily energy up to 2000 Wh per household

• Able to cope for 3 continuous days of bad weather (no sun)

• System can be boosted or supplemented to support government functions

To provide a basic level of service for every household

• To preserve the lifespan of the battery to reach or go beyond its design life of 5 years

• Battery State of Charge (SOC) must not drop below 30% and warning will be issued when it reaches 50%

• By-passing feature for extra power during community events

Every door is installed with an energy limiter to control usage

16

Solar panel Inverter Battery Usage

Average cost is RM55-65,000 per household

SARES

Completed Villages

• 192

Completed Households

• 4,960

Benefited Population

• 39,670

Phase4 for 2019

•Awarded in May/Jun Year Villages Households

Cost (RM mil)

2016 58 1,388 75

2017 59 1,604 95

2018 75 1,968 110

2019 88 3,108 167

2020 145 4,205 230

2021 160 3,188 195

Total 585 15,461 872

SARES Solar Implementation

• Initial RM 500 million funding for 323 villages

• Additional SARES funding of RM110 mil to accelerate Rural Electrification

SARES – Implementation Process

Community engagement Transportation of materials Civil & structural construction Electrical installations

Solar installations Commissioning & training Handing over to community

Transportation to Remote Locations

Sustainability of SARES Scheme

• Community ownerships with long-term support commitments from government and utility companies

• Training and organization of O&M commitments of local community

Lessons Learned & Success Factors K

ey s

take

ho

lder

(go

vern

men

t-co

mm

un

ity-

uti

lity)

par

tner

ship

s • Community took ownerships and commitments

• Government committed on fund allocation including repair & replacement

• Utility (and contractors) to guarantee supports in long term A

pp

rop

riat

enes

s o

f d

esig

n f

ocu

sin

g o

n p

ract

ical

ity • Sizing is based on

basic amount but quality electricity supply

• Component design to suit limited transportation options

• Custom design to simplify O&M by unskilled local communities C

on

trac

tor

dev

elo

pm

ent

and

loca

l co

mp

eten

cy

• Partnerships to develop local capacity in solar system engineering, design and installation

• Developing off-grid solar training and certification of competencies

Thank You