Singapore Institute of Power and Gas Power Plant Reliability Course Code: EPG05 SFC-Eligible | Course Reference Number: TGS-2022011358 COURSE OBJECTIVES Upon completion of this course, participants will be able to: • Learn the strategies to enhance power plant reliability • Understand the impact of reliability plan through the stages of power plant’s life cycle • Apply reliability study and improvement measures on major power plant equipment MAIN CONTENTS • Fundamentals of Plant Reliability o Definition & Importance of Plant Reliability o Relationship between Plant Reliability, Availability and Performance o Concepts of Plant Reliability and Factors affecting Plant Reliability • Strategies to enhance Power Plant Reliability o Engineering, operation and maintenance strategies o Importance of the Management in Plant Reliability (Reliability Leadership) • Impact of Reliability plan through the stages of Power Plant’s Life Cycle o Loop Optimization o Construction, plant start-up and running • Reliability Study & Improvement Measure on Major Power Plant Equipment o Critical System & Equipment o Major Mechanical and Electrical Equipment o Control & Instrumentation Equipment • Importance of Cooperation & Coordination between Operations, Maintenance, Reliability Teams • Plant Reliability Improvement Principles/Strategies METHODOLOGY Lecture TARGET AUDIENCE Engineering and technical staff involved in planning, operation, and maintenance in the power plant COURSE DETAILS Duration : 14 hours Mode of Delivery : Face-to-face or Blended (Face-to-face and Synchronous E-learning) Certification : SIPG Certificate of Completion PDU by PE Board : Pending Additional Requirement/s : Not applicable COURSE FEES Full Course Fee : S$1,400 (before GST) For Singapore Citizens/PR (21 – 39 years old) : S$420 (before GST) For Singapore Citizens (40 years old and above) : S$140 (before GST) Singapore Institute of Power and Gas Pte Ltd UEN: 201427065Z 2 Kallang Sector, Singapore 349277 Ver 3.1_0922 Singapore Institute of Power and Gas ADDITIONAL REMARKS • Trainee must attain at least 75% attendance rate and pass the assessment to receive Certificate of Completion and funding grant (if applicable). • Subsidy of up to 70% is applicable for Singapore Citizens, Permanent Residents or Long-Term Visitor Pass Plus (LTVP+) Holders, subject to funding agency’s approval. • Enhanced subsidy of up to 90% is applicable for Singapore Citizens aged 40 years and above, subject to funding agency’s approval. Note that GST payable will be computed from fee after 70% funding. • Professional Development Unit (PDU) is applicable for Professional Engineers registered under the Professional Engineers (PE) Board only. • All published fees are subject to prevailing GST. CONTACT US For more information, please contact SIPG at +65 6916 7930 or email training-institute@spgroup.com.sg. OTHER SIPG COURSES For more courses, visit our website at: https://www.spgroup.com.sg/about-us/training or Scan the QR code below: Singapore Institute of Power and Gas Pte Ltd UEN: 201427065Z 2 Kallang Sector, Singapore 349277 Ver 3.1_0922

GRID-TIED PHOTOVOLTAIC (PV) SYSTEM: CHECKLIST AND DECLARATION OF COMPLIANCE TO SP POWERGRID’S (SPPG) TECHNICAL REQUIREMENTS (To be submitted together with CS1 application) PART I: INSTALLATION DETAILS Consumer Name: For official use only Application No. Installation/Premises Address: Electrical Installation License No.: Installation Intake Voltage: Existing Approved Load: kVA Existing Approved PV Capacity: kWp kWac 1 PART II: PV SYSTEM DETAILS PV System Information: Short Circuit Current Contribution: Amps Metering Location Description of Metering Point Point kWp kWac 1 Owner of PV system 2 1 ☐ Consumer ☐ 3 rd party 2 ☐ Consumer ☐ 3 rd party 3 ☐ Consumer ☐ 3 rd party 4 ☐ Consumer ☐ 3 rd party Total 1. Base on inverter AC capacity. 2. If PV is owned by 3 rd party, please state Company Name: PV Inverter(s) Information: Metering Point Brand Model Rated Power (kWac) Quantity PART III: DOCUMENT CHECKLIST Please check the boxes to acknowledge that you have submitted the following documents: � Letter of Consent � Single Line Diagram (SLD) (from PV System to Point of Common Coupling (PCC)) � PQ Compliance Report � Short Circuit Current Contribution Report � Inverter(s) Specifications � Voltage and Frequency Protection Settings � Inverter(s) Type Test Reports (Harmonics, Flicker, DC Injection) � Solar panel(s) Specifications � Isolation Transformer Specifications (if used) � Dynamic Simulation Model (for aggregated capacity ≥10MWac) � Other Supporting Documents (if any) Please submit the following documents to the respective Distribution Network (DN) sections upon commissioning of the PV system. 1) Certificate of Compliance 2) Commissioning Declaration of PV System Page 1 of 3 Ver 5.0 PART IV: TECHNICAL REQUIREMENTS We confirm that the application complies with the following requirements at PCC: 1) Power Quality Voltage at PCC (kV) 0.23 / 0.4 6.6 / 22 66 230 / 400 Total harmonic voltage distortion, VTHD < 5% < 4% < 3% < 1.5% Harmonics Individual harmonic voltage (odd) < 4% < 3% < 2% < 1% Individual harmonic voltage (even) < 2% < 2% < 1% < 0.5% DC Injection Max DC injection per phase < 0.5% of inverter rated output current DC injection is deprecated Voltage Fluctuation Flicker Voltage Unbalance The LEW shall submit technical justification in the PQ compliance report for consideration, if the PV system DC injection at the PCC deviates from this requirement. Percentage difference from nominal voltage < ±3% Short term flicker severity, PST < 1.0 Long term flicker severity, PLT < 0.8 Max ratio of negative phase sequence to positive phase sequence voltage < 1% 2) Protection Abnormal Voltage Response Minimum Holding Time (s) - requirement Minimum Holding Time (s) - settings Maximum Tripping Time (s) - requirement Maximum Tripping Time (s) - setting Voltage Range (% of base voltage) V < 50 50 ≤ V < 88 110 ≤ V < 120 > 0.6 > 2.0 > 1.0 <1.6 < 3.0 < 2.0 The PV system shall also cease to energize the transmission system for faults on the service connection between the PV system to the PCC, and prior to re-closure of the service connection of the transmission system circuit breaker. Abnormal Frequency Response Operating Time Continuous operation Frequency Range (Hz) 47.5 ≤ f <52 47 ≤ f < 47.5 Remain in operation for at least 20s each time frequency falls below 47.5Hz. 3) Reconnection The solar photovoltaic generating unit may reconnect to the transmission system 1 minute after the voltage and frequency at its connection point have recovered and remained within the ranges listed as follows: (a) Frequency within 49.8Hz and 50.2Hz; (b) Transmission network voltage within ±3% of the nominal value or distribution network voltage within ±6% of the nominal value. 4) Inverter Specification Inverter power factor adjust range: 0.9 leading to 0.9 lagging. Reactive power control mode: ☐ Q(V) Control 3 If other mode is selected, please indicate the details: _____________________________________________ 3. For more details on the setting, please refer to “Transmission Code” F12. Page 2 of 3 Ver 5.0 PART V: CHOICE OF BACKUP SCHEME FOR EMBEDDED GENERATION (PV) (Must be filled for Intake Voltage at HT and above) We understand that consumers connected at HT and above with embedded generation (PV) are required to choose a backup scheme 4 for their service connection. Please prepare a Supplemental Agreement for Consumer based on the backup scheme of their choice (please tick one backup scheme): ☐ 1) Summation Scheme (please tick one metering option): ☐ Installation of Summation meters (Where there are no generation meters installed, summation meters will be provided by SPPA) ☐ Generation meters (If generation meters are already installed, there is no need to install additional summation meters as the generation meters can double up as summation meters) ☐ Solar Generation Profile (Applicable for contestable consumers who have embedded generation (PV) below 10 MWac and are registered with SPS/EMC) ☐ 2) Capped Capacity Scheme ☐ 3) Extended Capped Capacity Scheme 4. For more details on backup scheme, please refer to Handbook on “How to Apply for Electricity Connection” (Appendix 39). PART VI: DECLARATION OF COMPLIANCE TO SPPG’S TECHNICAL REQUIREMENTS I, (LEW No.: ), (Name) the undersigned Licensed Electrical Worker (LEW) for the PV installation at the above premises, declare that I have evaluated and confirmed that the PV system complies with the above, including requirements as per “Technical Requirements of Distributed Generation (DG) and New Extra High Tension (EHT) Connection”. Signature: Date: (DD/MM/YYYY) Page 3 of 3 Ver 5.0

Media Release Electricity Tariff Revision For The Period 1 January to 31 March 2022 Singapore, 30 December 2021 – For the period from 1 January to 31 March 2022, electricity tariff (before 7% GST) will increase by an average of 5.6% or 1.33 cents per kWh compared with the previous quarter. The increase this quarter is due to higher fuel costs. Around 95% of Singapore’s electricity is generated using imported natural gas at prices indexed to oil prices. Over the past few months, a confluence of recovering economic activity, severe weather events, and a series of gas production outages have sent global energy market prices significantly higher. These factors have raised electricity prices in many markets. For details on the components of the electricity tariff, please refer to Appendix 1: Breakdown of Electricity Tariff. For households, the electricity tariff (before 7% GST) will increase from 24.11 to 25.44 cents per kWh for 1 January to 31 March 2022. The average monthly electricity bill for families living in HDB four- room flats will increase by $4.70 (before 7% GST) (Appendix 3: Average monthly electricity bills of domestic consumers). *before 7% GST SP Group reviews the electricity tariffs every quarter based on guidelines set by the electricity industry regulator, Energy Market Authority (EMA). The tariffs shown in Appendix 2 have been approved by EMA. Issued by: SP Group 2 Kallang Sector Singapore 349277 www.spgroup.com.sg Appendix 1 BREAKDOWN OF ELECTRICITY TARIFF The electricity tariff consists of the following four components: Energy costs (paid to the generation companies): This component is adjusted quarterly to reflect changes in the cost of fuel and power generation. The fuel cost is the cost of imported natural gas, which is tied to oil prices by commercial contracts. The cost of power generation covers mainly the costs of operating the power stations, such as the manpower and maintenance costs, as well as the capital cost of the stations. Network costs (paid to SP Group): This is to recover the cost of transporting electricity through the power grid. Market Support Services Fee (paid to SP Group): This is to recover the costs of billing and meter reading, data management, retail market systems as well as market development initiatives. Market Administration and Power System Operation Fee (paid to Energy Market Company and Power System Operator): This fee is reviewed annually to recover the costs of operating the electricity wholesale market and power system. Appendix 2 ELECTRICITY TARIFFS FROM 1 JANUARY 2022 Appendix 3 AVERAGE MONTHLY ELECTRICITY BILLS OF DOMESTIC CUSTOMERS TARIFF WEF 1 JANUARY 2022 (before 7% GST)

30 Sep 2015 For Immediate Release MEDIA RELEASE ELECTRICITY TARIFF REVISION FOR THE PERIOD 1 OCTOBER TO 31 DECEMBER 2015 1. For the period from 1 Oct to 31 Dec 2015, electricity tariffs will decrease by an average of 9.3% or 2.06 cents per kWh compared to the previous quarter. The tariff reduction is due to the lower cost of natural gas for electricity generation which fell by 18.4% compared to 3Q 2015. 2. The electricity tariff for households will be revised to 20.35 cents per kWh for 4Q 2015. The average monthly electricity bill for families living in four-room HDB flats will decrease by $8.78. 3. SP Services reviews the electricity tariffs quarterly based on guidelines set by the Energy Market Authority (EMA), the electricity industry regulator. The tariffs given in Appendix 1 have been approved by the EMA. _______________________________________________________________________________________________________ Issued by: SP Services Limited 10 Pasir Panjang Road #03-01 Mapletree Business City Singapore 117438 Co. Reg No : 199504470N www.spservices.com.sg ELECTRICITY TARIFFS FROM 1 OCT 2015 Appendix 1 Appendix 2 BREAKDOWN OF ELECTRICITY TARIFF 1. The electricity tariff consists of the following four components: a) Energy cost (paid to the generation companies): This component is adjusted quarterly to reflect changes in the cost of power generation. b) Network cost (paid to SP PowerAssets): This fee is reviewed annually. c) Market Support Services Fee (paid to SP Services): This fee is reviewed annually. d) Market Administration and Power System Operation Fee (paid to Energy Market Company and Power System Operator): This fee is reviewed annually to recover the costs of operating the electricity wholesale market and power system. Q4 2015 TARIFF Energy Costs 14.87¢/kWh Decreased by 2.06 ¢/kWh Generation Companies Network Costs 5.26¢/kWh MSS Fee 0.17¢/kWh Market Admin & PSO Fee 0.05¢/kWh No Change No Change No Change SP PowerAssets SP Services Power System Operator & Energy Market Company Appendix 3 AVERAGE MONTHLY ELECTRICITY BILLS OF DOMESTIC CUSTOMERS (TARIFF WEF 1 OCTOBER 2015) Types of Premises Average monthly consumption per Customer Average Monthly Bill New Average Monthly Bill Average Decrease in Monthly Bill kWh $(a) $(b) $(b-a) % HDB 1 Room 147.57 33.07 30.03 (3.04) (9.2) HDB 2 Room 210.22 47.11 42.78 (4.33) (9.2) HDB 3 Room 313.34 70.22 63.76 (6.46) (9.2) HDB 4 Room 425.91 95.45 86.67 (8.78) (9.2) HDB 5 Room 498.75 111.77 101.50 (10.27) (9.2) HDB Executive 611.24 136.98 124.39 (12.59) (9.2) Apartment 644.15 144.35 131.08 (13.27) (9.2) Terrace 1,020.31 228.65 207.63 (21.02) (9.2) Semi-Detached 1,311.22 293.84 266.83 (27.01) (9.2) Bungalow 2,474.29 554.49 503.52 (50.97) (9.2) Average 509.84 114.26 103.75 (10.51) (9.2)

Consumption_Elect Average consumption of Electricity (kWh) Premises Types Jun-21 Feb-22 Mar-22 Apr-22 May-22 Jun-22 Jul-22 Aug-22 Sep-22 Oct-22 Nov-22 Dec-22 Jan-23 Feb-23 Mar-23 Apr-23 May-23 Jun-23 Jul-23 Aug-23 Sep-23 Oct-23 Nov-23 Dec-23 Jan-24 HDB 1-Room 154 135 128 140 145 150 139 143 139 132 130 127 125 121 111 127 142 152 147 145 143 146 144 135 126 HDB 2-Room 204 182 169 183 189 199 186 186 184 172 171 165 166 158 148 166 185 202 190 190 189 190 188 176 164 HDB 3-Room 292 253 239 259 268 276 259 264 257 245 245 235 233 226 212 242 270 288 271 272 269 274 269 247 236 HDB 4-Room 400 349 329 354 370 380 356 361 354 333 334 320 318 309 289 326 367 391 371 371 367 374 370 342 321 HDB 5-Room 465 408 382 411 431 445 414 420 416 388 389 373 369 363 338 381 428 456 437 434 427 437 436 401 367 HDB Executive 574 498 470 500 527 543 506 514 504 472 476 448 453 443 414 473 528 561 531 536 528 541 530 478 456 Apartment 609 503 488 533 573 576 527 523 519 498 496 469 450 425 414 465 543 585 546 514 515 537 541 483 430 Terrace 891 811 771 816 873 865 817 833 815 781 785 752 748 727 686 756 867 902 868 866 859 890 881 804 740 Semi-Detached 1,225 1,099 1,029 1,090 1,196 1,174 1,092 1,097 1,091 1,030 1,054 995 997 962 930 1,024 1,182 1,233 1,159 1,134 1,150 1,187 1,174 1,065 1,019 Bungalow 2,433 2,141 2,063 2,218 2,365 2,403 2,168 2,144 2,146 2,004 2,182 1,986 2,073 1,938 1,901 2,016 2,303 2,482 2,320 2,219 2,298 2,308 2,358 2,075 2,106

Singapore Institute of Power and Gas Gas Pipe Fitter Course Code: GPL05 OBJECTIVES Upon completion of this course, participants will be able to: • Describe hazards and importance of safety at work at gas distribution pipeline • List the fundamental of gas and the types of pipeline integrity testing • Apply the correct jointing and fitting methodology for Ductile Iron (DI) and Polyethylene (PE) gas pipes MAIN CONTENTS Theory • Fundamentals o Gas Properties – town gas and natural gas o Gas hazards and safety o Use of gas detector o Types of gas pipes – DI, PE and GI (Galvanised Iron) o Safety Precautions in handling live gas mains o Layout of gas pipe connection and symbols • Pressure Testing and Commissioning: o Pressure Test Instruments o Pressure Testing o Purging and charging in • Gas Leak Detection and Repair: o Operating of Gas Detector o Locating Gas leak o Repair & Maintenance of Leaking Gas Mains & Services Practical • Jointing of DI Pipes and Fittings o DI Pipes & Fittings o DI Pipe Tools & Equipment o Tightening of a Fitting eg. Bend or Cap o Tapping of Gas Mains o Insertion of Gas Bags o Use of Wask Bagging Equipment • Jointing of PEPipes and Fittings o PE Pipes & Fittings o PE Pipe Tools & Equipment o Cutting of PE Pipe for Connection o Joining of PE Pipe Connection o Squeezing and re-rounding of PE Pipe METHODOLOGY Lecture and practical session Note: SIPG reserves the right to amend any details relating to the course without prior notice. Contact Us: training-institute@spgroup.com.sg or +65 6916 9730 Ver 01.20 Singapore Institute of Power and Gas TARGET AUDIENCE Engineering and technical staff who are required to carry out gas pipeline design, construction and commissioning related work COURSE DETAILS Course Duration / Time 2 days (14 hours) / 8:30am – 5:30pm Assessment Yes Certification SIPG Certificate of Completion 1 PDU by PE Board 2 - Course Fee before Funding $1,400 w/o GST $1,498 with GST Course Fee after Funding 3 Not applicable - CLICK TO REGISTER 1 Participants must attain at least 75% attendance rate and pass the assessment. 2 Applicable to Professional Engineers registered in Professional Engineers Board (PEB) only. 3 Funding grant is available for Singapore Citizens and Permanent Residents only. Note: SIPG reserves the right to amend any details relating to the course without prior notice. Contact Us: training-institute@spgroup.com.sg or +65 6916 9730 Ver 01.20

Gas Transmission Connection Forms Updated 1 April 24 Gas Transmission Connection Forms S/No. Form No. Description 1 GT1 Application for Gas Transmission Connection 2 GT2 Application for Admittance of Gas 3 GT3 Certificate of Proof Test 4 GT4 Authorisation to Turn on Gas Meter Control Valve FORM GT1 - APPLICATION FOR GAS TRANSMISSION CONNECTION To: PowerGas Ltd c/o HOS (Gas Transmission Planning) SP PowerGrid Ltd Through Shipper _________________________________ _____________________________ Signature, Name & Designation Name of Shipper of Shipper Representative GAS CONNECTION TO: __________________________________________________________________ (Project Name) __________________________________________________________________ (Address of Gas Fitting) I would like to apply for connection to the PowerGas’ gas transmission pipeline network for the above project. I hereby submit the following documents and certify that the information provided is correct: • Consumer Project Data information (Appendix 1) • Location / site plan showing the project site and the proposed connection point • Location of Meter Installation where applicable. Name of Applicant : ______________________ Designation : ___________________________ Company : _____________________________ Signature/ Date: ________________________ GT1 (0424) FORM GT1 - APPLICATION FOR GAS TRANSMISSION CONNECTION CONSUMER PROJECT DATA SHEET Appendix 1 Consumer Information Project name Address of Gas Fitting Consumption Information Application of Gas Genco / Co-Gen / Tri-Gen / Boiler / Cooking / Water Heating / Others* If Others, please specify : _______ Issued with Generator Licence? Yes / No * Gas Consumption Duration per Day Expected Gas Admittance Date (DD/MM/YY) Gas Usage 8 / 12 / 24* hours or specify : _______ If gas supply is meant for interim use (less than 5 yrs), please specify duration of gas usage in years: __________ Delivery Pressure and Flowrate Injection point (location) Offtake point (location) Meter Installation by Transporter? Yes / No * Load profile / Pipeline Capacity Required Maximum Daily Quantity Year 1 Year 2 Year 3 Year 4 Year 5 BBtu / year BBtu / year BBtu / year BBtu / year BBtu / year BBtu / day Meter sizing parameters Max Flowrate Min Flowrate BBtu / hr BBtu / hr Minimum pressure required at Gas Service Isolation Valve (GSIV) Design pressure of user’s gas facility: Barg Barg Submitted by Applicant Confirmation by Shipper Name of Company : Name of Shipper : Name of Officer : Name of Officer : Designation : Designation : Date : Date : I agree with the above information provided by the applicant. Signature : Signature: Note : The above is for information purposes only. PowerGas may not be able to nor is obliged to fulfil any of the above requirements. *Delete where applicable GT1 (0424) PowerGas Ltd c/o HOS (Gas Transmission Projects) SP PowerGrid Ltd Through Shipper _____________________________ Signature, Name & Designation of Shipper Representative FORM GT2 - APPLICATION FOR ADMITTANCE OF GAS ___________________________________________ (Name of Project) ___________________________________________ (Address of Gas Fitting) _____________________________ Name of Shipper (A) I, the Designated Representative (DR) of the above project, certify that the Gas Fitting from, but excluding, the GSIV up to, [and including / but excluding]*, the Meter Installation, has been, I. Designed and constructed in accordance with the requirements of the relevant Legislations, Regulations, Codes and Practices. A copy of the “Certificate of Completion” (Appendix 1) is attached; II. III. Successfully tested and passed the final pressure test and that it is leak free. A copy of the “Certificate of Final Pressure Test” (Appendix 2) is attached; Capped / blanked / plugged off at all end points I certify that the Consumer’s Internal Pipe is not connected to and is physically separated from the outlet of the Meter Installation. I further certify that the Gas Fitting from, but excluding, the GSIV up to, [and including / but excluding]* the Meter Installation is ready to receive gas. I undertake to conduct the necessary proof test on the Gas Fitting from, but excluding, the GSIV up to, [and including / but excluding]*, the Meter Installation and submit the “Certificate of Proof Test” (Form GT3) immediately prior to the connection and gas admittance. _____________________________________ Name: _________________________ Signature and Stamp of PE / Date PE No. : ________________________ __________________________________________________________________________ (B) I hereby request for admittance of gas to the Gas Installation / Gas Fittings up to, [and including / but excluding]* the Meter Installation on ________________. ___________________________________ This is to confirm gas admittance shall be Signature of Applicant / Date carried out on _______________. Please Name: _____________________________ notify all relevant personnel to be present on site. Designation: _____________________ To the Shipper: _____________________ SPPG Officer-in-charge *Delete where applicable GT2 (0424) FORM GT2 - APPLICATION FOR ADMITTANCE OF GAS Appendix 1 PowerGas Ltd c/o HOS (Gas Transmission Projects) SP PowerGrid Ltd Through Shipper _____________________________ Signature, Name & Designation of Shipper Representative CERTIFICATE OF COMPLETION ___________________________________________ (Name of Project) ___________________________________________ (Address of Gas Fitting) _____________________________ Name of Shipper I, the Designated Representative (DR) of the above project, hereby certify that the Gas Fitting for the above project from, but excluding, the GSIV up to [and including / but excluding]* the Meter Installation have been designed and all gas service works has been carried out in compliance with the requirements of the latest revision of the following: • Gas Act (Cap 116A); • Gas (Supply) Regulations; • Gas (Metering) Regulations; • Gas Supply Code; • Gas Metering Code; • Singapore Standard, SS 608 – Code of Practice for Gas Installation; • Other applicable code / standard : ______________________ • All relevant acts, regulations and rules which are applicable to the gas installation; • All statutory and relevant codes which are applicable to the gas installation; • All statutory requirements in government laws and relevant regulations of government departments. 2 I further certify that the design pressure of the above Gas Fitting is ______ Barg. _____________________________________ Signature and Stamp of PE / Date Name: _________________________ PE No. : _______________________ *Delete where applicable GT2 (0424) FORM GT2 - APPLICATION FOR ADMITTANCE OF GAS Appendix 2 PowerGas Ltd c/o HOS (Gas Transmission Projects) SP PowerGrid Ltd Through Shipper CERTIFICATE OF FINAL PRESSURE TEST _____________________________ Signature, Name & Designation of Shipper Representative ___________________________________________ (Name of Project) ___________________________________________ (Address of Gas Fitting) _______________________________ Name of Shipper I, Designated Representative (DR) of the above project, hereby certify that the Gas Fitting from, but excluding, the GSIV up to, [and including / but excluding]*, the Meter Installation, has been successfully tested at _____________ (Barg) for ________ (hrs) and passed the final pressure test on ____________ (date) in accordance to the requirements of: Note: Please tick where applicable □ Singapore Standard, SS 608 – Code of Practice for Gas Installation; or □ Other applicable code / standard : ______________________ 2 I hereby declare that the Maximum Allowable Operating Pressure (MAOP) is ________________ (Barg). _____________________________________ Signature and Stamp of PE / Date Name: _________________________ PE No. : ________________________ *Delete where applicable GT2 (0424) FORM GT3 - CERTIFICATE OF PROOF TEST PowerGas Ltd c/o HOS (Gas Transmission Projects) SP PowerGrid Ltd Through Shipper _____________________________ Signature, Name & Designation of Shipper Representative ______________________________ Name of Shipper ___________________________________________ (Name of Project) ___________________________________________ (Address of Gas Fitting) I, Designated Representative (DR) of the above project, hereby certify that the Gas Fitting for the above project from, but excluding, the GSIV up to, [and including / but excluding]*, the Meter Installation have been successfully proof tested and passed the proof test 1 on _____________ (date). 2 I further certify that the test pressure has been released and the said Gas Fitting is currently at atmospheric pressure. Accordingly, I hereby request to proceed with the connection and gas admittance. 3 I shall undertake and proceed to purge and commission the Gas Fitting from, but excluding, the GSIV up to [and including / but excluding]* the Meter Installation after the gas admittance. _____________________________________ Signature and Stamp of PE / Date Name: _________________________ PE No. : _________________________ 1 Proof test shall be conducted in accordance to the requirements of SS 608 or CP 51 where applicable for installation designed to operate up to 50 kPa and 20 kPa respectively. Otherwise, proof test shall be carried out at 100 kPa or the operating pressure, whichever is lower, for a period of 30 mins. REQUEST FOR INTERIM ADMITTANCE OF GAS I, Designated Representative (DR) of the above project, hereby certify that the Gas Installation for the above project from, but excluding, the GSIV up to [and including / but excluding]* the Meter Installation have been prepared and is ready for purging and commissioning. Please proceed to admit gas for the purpose of purging and commissioning. _____________________________________ Signature and Stamp of PE / Date Name: _________________________ PE No. : _________________________ *Delete where applicable GT3 (0424) FORM GT4 - AUTHORISATION TO TURN ON GAS METER CONTROL VALVE Date : ________________ PowerGas Ltd c/o HOS (Gas Transmission Projects) SP PowerGrid Ltd ________________________________________ (Project Name) ________________________________________ (Address of Gas Installation) I, Consumer / PE *, of the above project hereby authorise PowerGas to open the Gas Meter Control Valve on my behalf now on ____________ (date) at ______________ (time) for the purpose of gas turn on. __________________________________ Signature of Consumer / PE Name : ___________________________ Designation : _______________________ *Delete where applicable GT4 (0424)

Singapore Institute of Power and Gas Power Plant Efficiency Course Code: EPG06 SFC-Eligible | Course Reference Number: TGS-2022011606 COURSE OBJECTIVES Upon completion of this course, participants will be able to: • Learn the fundamentals of power plant efficiency • Understand the factors affecting power plant efficiency • Apply the strategies to enhance power plant efficiency MAIN CONTENTS • Overview of power plant performance o Power plant historical development and their performance o Conventional power plant operation o Sub-critical and super-critical power plant performance o Gas turbine open cycle performance o Combined-cycle power plant performance o Combined heat and power (CHP) plant performance • Fundamentals of power plant efficiency o Boiler efficiency calculation methods o Turbine cycle efficiency (heat rate) o Combined cycle plant efficiency • Factors affecting power plant efficiency o Power plant and combined-cycle plant efficiency strategies o Power plant performance monitoring and analysis METHODOLOGY Lecture TARGET AUDIENCE Operational staff who are involved in planning, operations and maintenance in the power plant COURSE DETAILS Duration : 14 hours Mode of Delivery : Face-to-face or Blended (Face-to-face and Synchronous E-learning) Certification : SIPG Certificate of Completion PDU by PE Board : Pending Additional Requirement/s : Not applicable COURSE FEES Full Course Fee : S$1,400 (before GST) For Singapore Citizens/PR (21 – 39 years old) : S$420 (before GST) For Singapore Citizens (40 years old and above) : S$140 (before GST) Singapore Institute of Power and Gas Pte Ltd UEN: 201427065Z 2 Kallang Sector, Singapore 349277 Ver 3.1_0922 Singapore Institute of Power and Gas ADDITIONAL REMARKS • Trainee must attain at least 75% attendance rate and pass the assessment to receive Certificate of Completion and funding grant (if applicable). • Subsidy of up to 70% is applicable for Singapore Citizens, Permanent Residents or Long-Term Visitor Pass Plus (LTVP+) Holders, subject to funding agency’s approval. • Enhanced subsidy of up to 90% is applicable for Singapore Citizens aged 40 years and above, subject to funding agency’s approval. Note that GST payable will be computed from fee after 70% funding. • Professional Development Unit (PDU) is applicable for Professional Engineers registered under the Professional Engineers (PE) Board only. • All published fees are subject to prevailing GST. CONTACT US For more information, please contact SIPG at +65 6916 7930 or email training-institute@spgroup.com.sg. OTHER SIPG COURSES For more courses, visit our website at: https://www.spgroup.com.sg/about-us/training or Scan the QR code below: Singapore Institute of Power and Gas Pte Ltd UEN: 201427065Z 2 Kallang Sector, Singapore 349277 Ver 3.1_0922

Consumption_Elect Average consumption of Electricity (kWh) Premises Types Mar-23 Apr-23 May-23 Jun-23 Jul-23 Aug-23 Sep-23 Oct-23 Nov-23 Dec-23 Jan-24 Feb-24 HDB 1-Room 111 127 142 152 147 145 143 146 144 135 126 126 HDB 2-Room 148 166 185 202 190 190 189 190 188 176 164 167 HDB 3-Room 212 242 270 288 271 272 269 274 269 247 236 241 HDB 4-Room 289 326 367 391 371 371 367 374 370 342 321 330 HDB 5-Room 338 381 428 456 437 434 427 437 436 401 367 381 HDB Executive 414 473 528 561 531 536 528 541 530 478 456 474 Apartment 414 465 543 585 546 514 515 537 541 483 430 435 Terrace 686 756 867 902 868 866 859 890 881 804 740 794 Semi-Detached 930 1,024 1,182 1,233 1,159 1,134 1,150 1,187 1,174 1,065 1,019 1,038 Bungalow 1,901 2,016 2,303 2,482 2,320 2,219 2,298 2,308 2,358 2,075 2,106 1,951

BEST PRACTICES BY DIMENSIONS CUSTOMER EMPOWERMENT & SATISFACTION • Enedis • ConEd • TaiPower • UKPN • WPD • DEWA • SP Energy Networks • e-distribuzione SECURITY • Enedis • ConEd • TaiPower • UKPN • CitiPower • WPD • DEWA • PG&E • SDGE • SP Energy Networks • e-distribuzione • FPL • Radius • SCE • ComEd • Northern Powergrid • Jemena • LADWP • SSEN GREEN ENERGY • Enedis • ConEd • TaiPower • UKPN • WPD • PG&E • SDGE • SP Energy Networks • e-distribuzione • ENWL • ENWL • Northern Powergrid • Jemena • LADWP • SSEN • Tata power-DDL • Westnetz • Ausnet • Tata power-DDL • Westnetz • APS • Hydro Ottawa • BC Hydro • PEPCO • BGE • Western Power • Toronto Hydro • CenterPoint Energy • PSE • Dominion Energy • Eversource • TNB • NIEN • Stromnetz Berlin • EVN Hanoi • Tata power Ltd • SCE • LADWP • Tata power-DDL • APS • Hydro Ottawa • i-DE • CLP • Western Power • Toronto Hydro • SP Group • Kansai • KEPCO • Fluvius • TNB • Light • Chubu • EDP • Eversource • ESB • Vector • Eskom • ACEA MONITORING & CONTROL • Enedis • TaiPower • UKPN • CitiPower • WPD • DEWA • PG&E • SDGE • SP Energy Networks • e-distribuzione • ENWL DATA ANALYTICS • Enedis • ComEd • CitiPower • Jemena • PG&E • State Grid Beijing • SDGE • BC Hydro • e-distribuzione • Duke Energy • FPL • Vattenfall • SCE • Vector • Stedin SUPPLY RELIABILITY • CitiPower • KEPCO • DEWA • HK Electric • TEPCO • Stromnetz Berlin • CLP • Helen • SP Group • CEM • Kansai • Enedis • ConEd • TaiPower • UKPN • WPD • PG&E • SDGE • SCE • FPL • Radius • SCE • ComEd • Tata power-DDL • APS • BC Hydro • i-DE • PEPCO • Shenzhen Power • CLP DER INTEGRATION • SP Energy Networks • TEPCO • Ausnet • Western Power • Eversource • ESB • NIEN • Duke Energy • Chubu • CenterPoint Energy • Fluvius • EVN HCMC • ESB • State Grid Sichuan • Helen • Meralco • Light • Edenor SMART GRID PROGRESS (2020-2021) Global Asia Pacific North America Europe Average score 2020 Average score 2021 Website : https://www.spgroup.com.sg/sp-powergrid/overview/smart-grid-index Email : sgi@spgroup.com.sg Scan this QR Code to learn more about us KEY FINDINGS UTILITIES are focusing on Green Energy AVERAGE SCORE BY REGION (2021 & 2020) North America Europe Asia Pacific UTILITIES’ SOLAR AND WIND CONTRIBUTING MORE THAN 10% OF SYSTEM DEMAND 2018 2019 2020 2021 ASIA PACIFIC UTILTIES’ EV INITIATIVES RELATIVE TO THE WORLD 2018 2019 2020 2021 Average score of 2020 Average score of 2021 Global 14% 2.6% 19.8% 15.8% Global 29.1 % 10.5% 31.4% 26.3% 47.8% 43.0% Europe 45.3% Asia Pacific 76.29% 70.19% 63.63% 69.22% 60.9% 55.8% 65.1% 78.47% 74.77% 78.3% 82.6% EUROPE is leading in RE penetration 2 3 ASIA PACIFIC is catching up on EV initiatives SMART GRID INDEX The Smart Grid Index (SGI) measures the smartness of electricity grids globally, in seven key dimensions. The benchmarking also identifies best practices to build smarter grids that deliver better value to customers. 7 1 4 5 6 7 DIMENSIONS OF A SMART GRID MONITORING & CONTROL • SCADA • DMS/ADMS DATA ANALYTICS • Smart Meter Coverage • Data Analytics Application SUPPLY RELIABILITY • SAIDI • SAIFI DER INTEGRATION • Management of DER Integration • Grid Scale Energy Storage GREEN ENERGY • Renewable Energy Penetration • EV Facilitation SECURITY • IT Cyber Security • OT Cyber Security CUSTOMER EMPOWERMENT & SATISFACTION • Real-Time Data to Customers • Customer Satisfaction Feedback BENCHMARKING RESULTS 2021 Utility Country/ Score +/- Best Practices Market Enedis FRA 96.4 17.9% ConEd USA 94.6 5.4% TaiPower TWN 94.6 12.5% UKPN GBR 94.6 0.0% CitiPower AUS 92.9 5.4% WPD GBR 92.9 1.8% DEWA ARE 89.3 10.7% PG&E USA 87.5 -5.4% SDGE USA 87.5 0.0% SP Energy Networks GBR 87.5 3.6% e-distribuzione ITA 85.7 1.8% ENWL GBR 85.7 7.1% FPL USA 85.7 7.1% Radius DNK 85.7 23.2% SCE USA 85.7 0.0% Stedin NLD 85.7 5.4% ComEd USA 83.9 3.6% Northern Powergrid GBR 83.9 1.8% TEPCO JPN 82.1 7.1% Jemena AUS 80.4 8.9% LADWP USA 80.4 1.8% SSEN GBR 80.4 3.6% State Grid Beijing CHN 80.4 7.1% Tata power-DDL IND 80.4 5.4% Westnetz DEU 80.4 0.0% APS USA 78.6 1.8% Ausnet AUS 78.6 5.4% Hydro Ottawa CAN 78.6 3.6% BC Hydro CAN 76.8 7.1% i-DE ESP 76.8 1.8% PEPCO USA 76.8 1.8% Shenzhen Power CHN 76.8 3.6% BGE USA 75.0 1.8% CLP HKG 75.0 0.0% Guangzhou Power CHN 75.0 5.4% SP Group SGP 75.0 0.0% State Grid Shanghai CHN 75.0 1.8% Western Power AUS 75.0 12.5% Duke Energy USA 73.2 8.9% Kansai JPN 73.2 14.3% KEPCO KOR 73.2 0.0% Toronto Hydro CAN 73.2 1.8% Ausgrid AUS 71.4 1.8% Utility Country/ Score +/- Best Practices Market Chubu JPN 71.4 3.6% State Grid Chongqing CHN 71.4 7.1% CenterPoint Energy USA 69.6 -5.4% Fluvius BEL 69.6 1.8% Liander NLD 69.6 3.6% PSE USA 69.6 1.8% Dominion Energy USA 67.9 5.4% EDP PRT 67.9 -1.8% Eversource USA 67.9 -1.8% EVN HCMC VNM 67.9 16.1% MEA THA 67.9 14.3% TNB MYS 67.9 5.4% Vattenfall SWE 67.9 1.8% ESB IRL 66.1 8.9% State Grid Sichuan CHN 66.1 3.6% EVN CPC VNM 64.3 8.9% NIEN GBR 64.3 8.9% HK Electric HKG 62.5 1.8% Kahramaa QAT 62.5 10.7% State Grid Hubei CHN 62.5 1.8% State Grid Nanjing CHN 62.5 0.0% State Grid Tianjin CHN 62.5 0.0% Stromnetz Berlin DEU 62.5 10.7% EVN Hanoi VNM 60.7 5.4% Helen FIN 60.7 0.0% Vector NZL 60.7 3.6% Meralco PHL 58.9 0.0% PEA THA 58.9 5.4% State Grid Changsha CHN 58.9 10.7% Eskom ZAF 55.4 5.4% Wiener Netze AUT 55.4 3.6% ACEA ITA 51.8 0.0% CEM MAC 51.8 0.0% Tata power Ltd IND 51.8 3.6% Light BRA 48.2 0.0% Rosseti RUS 48.2 0.0% Sarawak Energy MYS 46.4 8.9% Edenor ARG 44.6 7.1% PLN IDN 44.6 0.0% Enel Dist Sao Paulo BRA 37.5 0.0% Enel Dist Chile CHL 35.7 0.0% Edesur ARG 32.1 1.8% City Power ZAF 21.4 0.0% Disclaimer: We have arrived at the findings, opinions and conclusion set out in this paper based on application of our methodology to materials and information we believe to be accurate and reliable, and which are made available in the public domain at the time we carried out the relevant research and study. Despite our best efforts, the materials and information may include inaccuracies and errors. The findings, opinions and conclusion will be construed solely as statements of opinion on the matters addressed in this paper including the degree of grid smartness ratings and shall not in any way represent authoritative assessment or judgment on any such matters. You assume the sole risk of making use of and/or relying on the findings, opinions and conclusion made available in this paper. To the extent permitted by law, we disclaim liability to any person or entity for all and any liability, direct and indirect, special, consequential, incidental losses and damages whatsoever arising from or in connection with your access to or use of the findings, opinions and conclusions in this paper.

OverviewUtilities Quick Guide ResidentialUtilities Quick Guide CommercialTariff informationOpen Electricity MarketFAQsForm & ResourcesChat with Us Open Electricity Market The Open Electricity Market is an initiative by the Energy Market Authority (EMA) that allows you to enjoy more choices and flexibility when buying electricity. You can benefit from competitive pricing and innovative offers from retailers. With the Open Electricity Market, you have the choice of buying electricity from: SP Group at the regulated tariff (no action is required if you choose this option); or An electricity retailer at a price plan that best meets your needs; or The wholesale electricity market at half-hourly wholesale electricity prices through SP Group. Regardless of who you buy your electricity from, your electricity supply will stay the same. This is because SP Group will continue to operate the national power grid and deliver electricity to everyone. Working with Retailers Our goal is to make processes convenient and efficient for all customers. SP will facilitate customer transfers between retailers and offer retailers one-stop utilities billing and call centre services. As the Market Support Services Licensee, SP continues to provide services such as: Opening of utilities account Meter reading Meter data management Billing services If your Retailer Exits the Market You will be transferred to buy electricity from SP Group as a last resort.  Households and small businesses with an average monthly consumption of less than 4MWh will buy electricity at the regulated tariff rate. Larger businesses with an average monthly consumption of at least 4MWh will buy electricity at the wholesale electricity price. There will be no disruption to your electricity supply. You will continue to receive your electricity supply through the national power grid that is operated by SP Group. Making the Switch to a Retailer Residential Consumers Business Consumers For more information on Open Electricity Market Visit www.openelectricitymarket.com.sg Have a business enquiry? Interested to find out more how our integrated services can serve your business needs? Drop us an online enquiry, and our qualified professionals will reach out to you. Contact Us Form