Rooftop Solar PV Development in Indonesia · Prediction 2018 977 PLTGU Muarakarang B1 433 PLTU...

Rooftop Solar PV Development in Indonesia

Budi MulyonoNew and Renewable Energy DivisionStrategic Procurement Directorate 1PT. PLN (Persero)

INDOEBTKE CONEX 2018

August 31, 2018

www.pln.co.id |

Outline

1. PLN Current Condition2. PLN Support in Rooftop Development:

Implementation of PT. PLN (Persero) Director’s Decree:- No. 357/K.DIR/2014 about Aturan Penyambungan Energi Baru dan Terbarukan ke Jaringan Grid PLN- No. 733.K/DIR/2013 about Pemanfaatan Energi Listrik dari Fotovoltaik oleh Pelanggan PT PLN (Persero)- No. 0009.E/DIR/2014 about Ketentuan Operasional Integrasi Fotovoltaik Milik Pelanggan ke Dalam Area

Sistem Tenaga Listrik PT. PLN (Persero)3. Potential Impact of Rooftop Penetration

New and Renewable Energy Division1st Strategic Procurement DirectoratePT. PLN (Persero)

www.pln.co.id |

PLN Responses about Rooftop

1. PLN doesn’t prevent the Development of Solar PV Rooftop

2. PLN Support in Regulation related to development of Solar PV Rooftop

3. Currently PLN’s sales decreasing even tough over supply of power plant generation

4. There’s no incentive for PLN due to falling sales if Solar PV Rooftop Penetration increase.

PLN Current Condition

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PLN Market Condition

1. Growth Sales reached only 3.57% (YoY up to November 2017)

2. kWh Target Sales just reach 99.3% from target up to December RKAP 2017

3. There are 22 customers-657.4 MVA-188 GWh/month that parallel the power plant and still have > 4000 MW captive power potentially parallel

4. There are 414 PV customers per May 2018 and will continue to grow in the business and industry sectors

5. There are 13 Medium Industry Customers stop

6. E-min 40 hours is too low so it does not cover the cost of providing capacity

7. Fuel price can not be controlled


www.pln.co.id |

Photovoltaic Consumer Growth as of January 2018

155 166 177192

214 224238 246

268284

308338

Photovoltaic customers who enter the PLN system

-

10,000

20,000

30,000

40,000

50,000

60,000

70,000

80,000

90,000

100,000

Feb-17 Mar-17 Apr-17 May-17 Jun-17 Jul-17 Aug-17 Sep-17 Oct-17 Nov-17 Dec-17 Jan-18

kWh

Feb-17 Mar-17 Apr-17 May-17 Jun-17 Jul-17 Aug-17 Sep-17 Oct-17 Nov-17 Dec-17 Jan-18

Series1 39,728 30,637 46,065 54,853 54,464 59,371 65,082 53,999 73,043 68,169 65,582 87,118

kWh Rooftop absorbed by PLN

Wilayah/Distribusi NumberBali 18Banten 16DKI Jakarta 174Jawa Barat 72Jawa Tengah 10Jawa Timur 43Riau 1S2JB 3Sumatera Utara 1Total 338


Up to May 2018, PV Customers increases to 414

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Solar PV Scheme in Others Country

7

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Marginal Cost Peak Load and Base Load

Year Peak Load Base Load 1 Base Load 2

Rp/kWh Unit Rp/kWh Unit Rp/kWh Unit

Realisation 2017 1272 PLTGU Tambak Lorok

#2

363 PLTU Indramayu#2

395 PLTU PelabuhanRatu #2

Prediction 2018 977 PLTGU Muarakarang

B1

433 PLTU Lontar 433 PLTU Lontar

PLN Support in Rooftop Development

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PLN Policy to support PV Rooftop Development

10

PLN support development of PV Rooftop by providing facilities free paralel to PV Rooftop up to 30 kWp.

Create billing system which accommodate export-import offset and gives credit deposit from Solar PV Consumer.

Provide sufficient reserve margin and appropriate type to adjust the intermittency of Solar PV.

Keep maintaining the reliability and quality of PV Rooftop customers and their surroundings by maintaining the balance of local supply and demand

The business scheme is arranged fair for customers and PLN

www.pln.co.id |

Implementation of PT. PLN (Persero) Director’s Decree:

1. No. 357/K.DIR/2014 about Aturan Penyambungan Energi Baru dan Terbarukan ke Jaringan Grid PLN2. No. 733.K/DIR/2013 about Pemanfaatan Energi Listrik dari Fotovoltaik oleh Pelanggan PT PLN (Persero)3. No. 0009.E/DIR/2014 about Ketentuan Operasional Integrasi Fotovoltaik Milik Pelanggan ke Dalam Area Sistem

Tenaga Listrik PT. PLN (Persero)


Potential Impact of Rooftop Penetration

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Group of PV Rooftop will influence stability of transformer that serves the cluster

The grid of PLN (kits, trans, GI, Transformers Dist) will swing more in response to the intermittency.

The islanding system must be considered for safety and environmental factors, there should be no wild PV rooftop

The rooftop PV as a green lifestyle must be balanced by a good utility electricity grid.

www.pln.co.id |


14

The development of PV Rooftop was born from the downstream side which had not been included in the plan of reliability and stability of the local PLN Network

Technical Impact of Rooftop Penetration Duck Curve

No incentives for PLN due to lower sales when Rooftop penetration is high

Rooftop Energy Purchase Price is equal to PLN's Sale Price, but Production Cost at Night is higher than Production Cost at Day.

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Establishment of Electricity Tariff Adjustment July – September 2017


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Impact of Intermittent RE to SystemExample of Duck Curve in Other Countries

Source : California Independent System Operator (CAISO), 2017New and Renewable Energy Division1st Strategic Procurement DirectoratePT. PLN (Persero)

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Solar Resource Mapping (Irradiation)

Sumber : solargis.info


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PV System Cost Benchmark Summary


Listrik untuk Kehidupan yang Lebih Baik

Thankyou

PLN Support in Rooftop Development

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Director Decree No. 357/K.DIR/2014 Aturan Penyambungan Energi Baru dan Terbarukan ke Jaringan Grid PLN

Connection Procedure and Purchase1. The developer shall complete the requirements of the connection study procedure and feasibility study submitted to the PLN Wilayah/Distribusi

2. PLN Wilayah/Distribusi will review the study of the connection whether it meets the applicable interconnection technical requirements and evaluate whether there is potential adverse impact on the distribution system of 20 kV

3. There are two kinds of analysis process and review of connection studies, namely: 1) Fast track (Outside Java-Bali <200 kW and Java-Bali <2 MW), 2) Standard review;

4. PLN conducts Technical Review, Financial Review and Risk Assessment

5. PLN Heart quarter Verification and Approval

6. Review and Approval of Human Resources

7. PPA

8. Funding, EPC, Testing & Commissioning

1


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Fast-Track Connection Review1. RE Power plant that meets the installed capacity requirements as follows:

• RE Power plant with capacity not more than 2 MW (Java Bali)• RE Power plant with capacity not more than 200 kW (outside Java Bali)• RE Power plant with a capacity of not more than 30 kW (connected 400 V)

2. Required to meet the following requirements:• Not exceeding 25% of peak load capacity• SCL does not exceed 10% of the maximum short circuit current of the feeder

3. PLN Territory / Distribution will carry out the Fast-Track review process for free

1


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Fast-Track Flowchart

1


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Standard Connection Review1. Analyzing and reviewing the parallel connection and parallel operation of the EBT generator did not cause any adverse impact on the

distribution system either in terms of power quality or Power Electricity System continuity. Main Component:1. Connection requirements for all types of EBT generators: (i) Requirements of protection function (ii) Requirements of interference function2. Specific requirements of generating technologies: (i) Synchronous generator (ii) Induction generator (iii) Inverter3. Additional requirements for Intermittent EBT generators: (i) Solar PV (ii) Wind4. Communications and metering requirements

2. Review of connection studies includes 3 parts, namely:• Feasibility Study of grafting• Distribution System Impact Study• Study of Connection Facilities

3. The developer of PLT EBT is obliged to carry out the study

4. The study was conducted in order to propose the process of approval and review of PLN Distribution / Territory

1


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Standard Connection Flowchart

1


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Distribution’s Grid Impact StudyProvide early identification of funding and the length of time required to fix identified problems and provide identification of funding responsibilities for connection facilities1. Power Flow Analysis on distribution system

2. Brief Analyzes,

3. Analysis of Equipment Termination Ratings,

4. Set Point Protection and Coordination Study

5. Study of Voltage Drop, and / or Grounding Review,

6. Operational Impact Analysis of Distribution System.

1


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Interconnection Facilities StudyDetermine the estimated cost of equipment and EPC required to complete the proposed EBT plant connection and provide designs in accordance with the Engineering Requirements and cost estimates for:1. The Connection Facility between the proposed EBT PLT and the Connecting Point,

2. PLN Connecting Facilities from the PLN Distribution System to the Connection Point, and

3. Improved / upgraded PLN Distribution System caused by the proposed PLT EBT connection.

1


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Scope of Feasibility Study1. Identify the beginning of the more thermal load, power flow return problems, and voltage limit violations arising from the proposed Point of

Interconnection

2. Initial identification of any excess of the short-circuit capacity limit

3. An early review of the System Requirements for Protection and Grounding Systems

4. Explanation and preliminary cost estimates of the facilities required to link the proposed EBT plant

1


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Kajian Kelayakan Proyek (KKP)KKO (Operational Feasibility Review) which includes:

• Electrical conditions in the area

• Electrical conditions before and after the EBT plant operate in both normal and abnormal conditions

• Operational analysis

KKF (Financial Feasibility Study) which includes:

• Calculation Assumptions

• Saving Margin

• Net Present Value (NPV)

• Price analysis

• SWOT Analysis

• Risk Identification

1


www.pln.co.id |

Director Decree No. 733.K/DIR/2013 Pemanfaatan Energi Listrik dari Fotovoltaik oleh Pelanggan PT PLN (Persero)

Installation Provision1. Customer's Photovoltaic is installed and placed on the Customer’s Building.

2. Photovoltaic shall be operated in parallel with the electricity system of PLN.

3. Customers could send kWh excess energy from Photovoltaic to PLN power system.

4. PLN may provide information on electrical energy received by PLN from Photovoltaic, if necessary.

2


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Director Decree No. 733.K/DIR/2013 Pemanfaatan Energi Listrik dari Fotovoltaik oleh Pelanggan PT PLN (Persero)

Energy Transaction1. PLN installed import export kWh meter (ExIm) type for PLN customers utilizing electrical energy from Photovoltaic, apart from

PLN electricity.2. Electrical energy received by PLN from Photovoltaic will be offset with the electrical energy that PLN sends to Customers.

3. In the event that the energy received by PLN from Photovoltaic is greater than the energy delivered by PLN, the difference becomes the deposit of kWh to be calculated in subsequent months, and so on.

4. Customer shall be liable to the Minimum Account in accordance with the power connected to the PLN

2


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Director Decree No. 0009.E/DIR/2014 Ketentuan Operasional Integrasi Fotovoltaik Milik Pelanggan ke Dalam Area Sistem Tenaga Listrik PT. PLN (Persero)

Operational Provision

1. Anti-Islanding

2. Power Quality

3. Additional Transaction Meter Functions

4. Customer Installation Synchronization (PV) and Power Electricity Area

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Anti Islanding3


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Power Quality3


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Additional Transaction Meter Functions

meter of transaction used refers to Standard Static Electric Meter Phase Three SPLN D3.006-1: 2010 and Standard Meters Static Phase 1 Prepaid STS SPLN D3 009-12010. Beside that transaction meter must have the function as described below:

3


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Customer Installation Synchronization (PV) and Power Electricity Area3


Rooftop Solar PV Development in Indonesia · Prediction 2018 977 PLTGU Muarakarang B1 433 PLTU...

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