Page 1J. Hourtoule, Electricity contract: scope and forecasted consumption, 16/07/2015 © ITER...

Page 1J. Hourtoule, Electricity contract: scope and forecasted consumption, 16/07/2015 © ITER Organization

Electricity Supply Contract:For the ITER Site.

Joel HourtouleElectrical Engineering Division

Disclaimer: The views and opinions expressed herein do not necessarily reflect those of the ITER Organization.

Saint Paul lez Durance, 16 July 2015


Outline

1. Key facts & figures of the electricity supply contract.

2. Present and future delivery points.

3. Forecasted electrical consumption.

4. Forecasting accuracy.

5. Routine forecasting, anticipated changes and peak power shaving

Important remark: The information and data reported in this presentation are preliminary and could be subject to change in the call for tender package.


• To supply the agreed electrical demand to the ITER Organisation’s construction site.

• To provide the service of Balance Responsibility Entity for the ITER Organization’s electrical load.

• The initial contract will be for 1 year with two options to extend the contract by a further year, giving a maximum total of 3 years for the duration of the contract.

Key facts and figures of the electricity supply contract

YearMaximum power demand

(averaged over 10 min period)(MW)

Energy consumption (GWh/year)

2016 0.3 4

2017 4 15

2018 20 85


Present delivery point: from CEA Cadarache

Active power consumption (10 min averaged) during 1st semester 2014.



Active power consumption (10 min averaged) in March 2014.

Mon

Tue

Wed

Thu

Fri



Daily, monthly and cumulated energy consumption during 1st semester 2014.


• It will take about 3 years to implement the full transition form the present (CEA Cadarache) to the future point of delivery (400 kV grid).

• Therefore, the historical consumption data cannot be used to forecast the consumption during the coming 2 years.

Transition from present to future point of delivery


Future delivery point: from 400kV Prionnet


March-September 2016• Test and commissioning of 400 KW substation and main transformers.


March-September 2016

0:30

2:30

4:30

6:30

8:30 1 1 1 1 1 2 2

0

0.1

0.2

0.3

0.4

0.5

0.6 Monday-FridaySaturdaySunday-Off

(MW)

(hh:mm)


September 2016 – March 2017• Start the fabrication of the large Poloidal Field Coils.


September 2016 – March 2017

0:30

2:30

4:30

6:30

8:30 1 1 1 1 1 2 2

0

0.2

0.4

0.6

0.8

1


(MW)

(hh:mm)


March 2017 – September 2017• Disconnection from CEA Cadarache. Transition to 400 kV supply

completed


March 2017 – September 2017

0:30

2:30

4:30

6:30

8:30 1 1 1 1 1 2 2

0

0.2

0.4

0.6

0.8

1

1.2

1.4


(MW)

(hh:mm)


September 2017 – March 2018• Start-up of building facilities


September 2017 – January 2018

0:30

2:30

4:30

6:30

8:30 1 1 1 1 1 2 2

0

0.5

1

1.5

2

2.5

3

3.5

4


(MW)

(hh:mm)


From Jan to March 2018

0:30

2:30

4:30

6:30

8:30

10:30

12:30

14:30

16:30

18:30

20:30

22:30

0

2

4

6

8

10

12

14 Monday-FridaySaturdaySunday-Off

(MW)

(hh:mm)


After March 2018• Start the Cryoplant test and commissioning.


After March 2018

0:30

2:30

4:30

6:30

8:30

10:30

12:30

14:30

16:30

18:30

20:30

22:30

0

5

10

15

20

25Monday-FridaySaturdaySunday-Off

(MW)

(hh:mm)


Electrical Distribution: outline diagram

Pulsed Power Electrical Networkabout 500 MW peak pulseMain consumers:• Coil power converters• Radio Freq. and Neutral Beam systemsIncludes large Static Var Compensators

Steady State Electrical Networkabout 120 MW continuous powerMain consumers:• Cooling Water System• Cryoplant• Building services

ITER AC Power System consists of a continuous [steady state] and a pulsed parts:Steady State Electrical Network (SSEN) and Pulsed Power Electrical Network (PPEN)


Planning of maximum power demand:2016-2026

2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

First Plasma

Construction Operation

SSEN MAX ABSORBED POWER (MW)

ITER ASSEMBLY AND OPERATION

Assembly phase 2 Vessel Assembly

PPEN MAX ABSORBED POWER (MW)

Tokamak basic machine assembly

Start machine assemblyIntegrated

commissioning

100

60

0

350

60

~ 60~ 100

~ 200

~ 50

First Plasma

20


2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035

First Plasma

Operation

SSEN MAX ABSORBED POWER (MW)

ITER ASSEMBLY AND OPERATION

Shutdown

60

PPEN MAX ABSORBED POWER (MW)

Integrated commissioning

100

60 60 60

120 120 120 120

350 450

500 500 500

Assembly phase 2 Short shutdown

H-He Operation Deuterium-Tritium operation

Shutdown

Long pulses

60

Nominal Plasma Hydrogen-Helium Complete Start DT Q = 10 Long Pulse Achieved

~ 50

First Plasma Nominal Plasma Hydrogen-Helium Complete Start DT Q = 10 Long Pulse Achieved

~ 50 ~ 50 ~ 50 ~ 50

H-He Operation

Planning of maximum power demand:2025-2035


Total Power/Energy demands at max performances (after 2030)

-400 -200 0 200 400 600 8000

50

100

150P SSEN (MW) Q SSEN (Mvar)

Pulsed Power Electrical Network (PPEN)

-400 -200 0 200 400 600 800-200

0

200

400

600

800 P Coil PS (MW) Q Coil PS (Mvar)

-400 -200 0 200 400 600 8000

100

200

300 P H&CD (MW) Q H&CD (Mvar)

• Net Q from the grid is limited by reactive power compensation systems installed on both the SSEN and PPEN (750 Mvar installed power)

• Estimated total (PPEN + SSEN) energy consumption 0.6 TWh/year

-400 -200 0 200 400 600 800

-200

0

200

400

600

800

1000P total (MW) Q total (Mvar) Q total GRID (Mvar)

TOTAL: Pmax ~ 500 MW, Qmax ~ 950 Mvar; QGRID max ~ 250 Mvar

time (s)

time (s)


• During the ITER Project construction phase, the consumption will increase.

• The variation of power (and energy) demand can be reasonable predicted.

• Vice versa, there are significant uncertainties on the start-up date of each main consumer.

Forecasting accuracy: main uncertainty


• The test and commissioning of the Cryoplant implies the 24h/day, 7days/week operation of some high power (5 MW) compressors.

• The starting date for the test will be planned some months in advance.

• But, the actual scenario will be quite different.

Forecasting accuracy: example

0 20 40 60 80 100 1200

2

4

6

8

10

12

14

16

Forecasted: P (MW)

Example 1 of real scenario: P (MW)

Example 2 of real scenario: P (MW)

day

(MW)


In case it is economically viable for the ITER Organization:

• The ITER Organization can regularly communicate to the electricity supplier (example every month) the forecasted consumption. However, during the testing and commissioning phase, there could be up to 2-4 months uncertainty on the actual starting date of the consumption.

• The ITER Organization can promptly communicate to the electricity supplier any unexpected event (example a plant fault), which has a significant impact on the forecasted electricity consumption.

• The ITER Organization is interested in reward schemes for peak shaving capacity.

Routine forecasting, anticipated changes and peak power shaving


• Contracts scope includes both the supply of electricity and the service of Balance Responsibility Entity.

• The initial contract will be for 1 year with two options to extend the contract by a further year, giving a maximum total of 3 years for the duration of the contract.

• Although the forecasted consumption is relatively low (0.3 MW, 4 GWh/year), in 2018 is expected to increase up to (20 MW, 80 GWh/year).

• The electricity consumption will further increase during the following years (new call for tender will be launched).

• The variation of power (and energy) demand can be reasonably predicted. Vice versa, there are significant uncertainties on the start-up date of each main consumer.

• The ITER Organization can communicate to the electricity supplier (example every month) the forecasted consumption. There could be up to 3-4 months uncertainty on the actual starting date of the consumption.

• The ITER Organization is interested in reward schemes for peak shaving capacity.

Conclusions


Thank you for your attention

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