Wind Turbine. Commissioning Utilizing Mini-Grid Power. Scottish Renewables Onshore Wind Conference & Exhibition Aggreko

Transcription

1 Wind Turbine Commissioning Utilizing Mini-Grid Power Scottish Renewables Onshore Wind Conference & Exhibition

2 Agenda 41 Aggreko: 10 years in North America wind industry Wind Farm Mini-Grid Projects Why do a mini-grid project? What is the need? What is the processing that we follow? Questions

3 Brief History 42 Aggreko has been in the US for over 25 years Working in the wind industry for 10 years Pre-commissioning Blade remediation and repair Mini-grid commissioning Mini-Grid projects Over 40 completed 12 different developers 14 US states 3 Canadian provinces

4 Mini-Grid projects 43 New York State Back-feed Power 5 MW

5 Why do a Mini-Grid project? 44 Contractual Reasons Interconnection Agreement (ICA) Between the developer and the local utility Transportation and delivery Contains an interconnection date Power Purchase Agreement (PPA) Between the developer and the entity that is buying the power Not necessarily the local utility Contains a Commercial Operation Date (COD) that the developer must be prepared to deliver power by or Liquidated Damages begin Issue ICA date is too close to COD date Late Energization of Project Substation Construction is substantially completed Utility power is not yet available or late completion date

6 Why do a Mini-Grid project? Financial Reasons Commitments to the Investment Community Developers have made commitment to their investors of how many kw they will add to the marketplace Revenue and Faster Return on Investment Avoid Liquidated Damages tied to COD Production Tax Credits (PTC) Investment Tax Credits (ITC) Any Additional Tax Benefits State Local Provisions of New Economic Stimulus Package

7 Required information to build solution 46 Collector circuit cable specs Length of cable Voltage of collector circuit Size and quantity of pad mount transformers Commissioning Requirements Supply auxiliary power to turbines for commissioning Commissioning and load test of turbines Other requirements Desired Equipment location Base of Turbine End collector circuit at a junction point Within the collection substation

8 Equipment involved in a Mini-Grid system Generator (s) 1500 kw to 6000 kw to power the system Resistive/Reactive Loadbank Circuit Breaker to 4000 amps Transformer (s) to 34,500 volts, 1000 kw to 5000 kw Cables Trailers Fuel tanks Operator

9 3 Megawatt System 48 Ontario, Canada

10 Average Mini-Grid Power Requirements kw per turbine for 4 hours of commissioning 4 turbines commissioned at a time Set up in substation Operate 12 hours per day Goal is 4-8 turbine per day

11 3 Megawatt System 50 GEN 1 GEN 2 Generator Controller Generator Controller CB 1 Power Analyzer Resistive Reactive Load bank 4000 amp Disconnect CB 2 Records Power Quality Troubleshooting tool

12 Energizing Collector Circuit 51 Load Bank 4000 amp Disconnect Collector Circuit Transformer 1.85 MVA Transformers

13 Unload Collector Circuit Load Bank 4000 amp Disconnect 52 Open Breaker when cable test is complete Unload load bank Collector Circuit Transformer 1.85 MVA Transformers

14 Energizing 4 Pad Mount Transformers 53 Load Bank 4000 amp Disconnect Set load on load bank 800 kw 1657 KVAr Close breaker when transformers are closed Run for required time Collector Circuit Transformer 1.85 MVA Transformers

15 Unload Circuit Load Bank 4000 amp Disconnect 54 Open Breaker when cable test is complete Unload load bank Collector Circuit Transformer 1.85 MVA Transformers

16 Energizing 8 Pad Mount Transformers 55 Load Bank 4000 amp Disconnect Set load on load bank 800 kw 1657 KVAr Close breaker when transformers are closed Run for required time Collector Circuit Transformer 1.85 MVA Transformers

17 Unload Circuit Load Bank 4000 amp Disconnect 56 Open Breaker when cable test is complete Unload load bank Collector Circuit Transformer 1.85 MVA Transformers

18 Energizing 12 Pad Mount Transformers 57 Load Bank 4000 amp Disconnect Set load on load bank 800 kw 1657 KVAr Close breaker when transformers are closed Customer can now start pre- Commissioning Collector Circuit Transformer 1.85 MVA Transformers

19 Energizing 12 Pad Mount Transformers 58 Generator load 800 kw Load Bank setting 1200 kw 1657 KVAr Current Load 800 kw 1657 KVAr Commissioning team is ready to load the first turbine Add 400 kw to the load bank 1200 kw 1657 KVAr Turbine will take 400 kw of load Turbine Load 400 kw

20 Wind Turbine Load 59 Step Load Bank KVAr setting Load Bank kw Setting Total Aggreko Generator Load kw WTG Load kw Add desired starting load to load bank st WTG loaded Add load for 2nd WTG to load bank nd WTG loaded Add load for 3rd WTG to load bank rd WTG loaded Add load for 4th WTG to load bank th WTG loaded

21 Power Analyzer Report 60 Before Collector Circuit Energized

22 Power Analyzer Report 61 Collector Circuit Energized 570 VAR

23 62 QUESTIONS?

24 63 THANK YOU