3 May 2023 WÄRTSILÄ POWER PLANTS1 © Wärtsilä

Mr : Med SeghairEnergy Solution Wartsila Gulf

ENERGY SOLUTION FOR ARID AREAS

ME Historical Facts

AnswerAll three don’t need much water

QuestionsWhat Camels and Palms has in common with Reciprocating Engines?

4Wärtsila

TC

Fuel InputElectricalPower

AIRINTAKE

Radiator

TC

AIR(14.3kg/s)

TC

Exhaust gas (14.7kg/s, 390 ºC)

59ºC

69ºC

LT charge air 340kW35ºC

40ºC50ºC

91ºC

RadiationHeat from engine 240kWHeat from alternator 270kW

41kg/s, 33ºC

44kg/s, 85ºC

HT charge air 1860kW

Jacket water 1140kW

Lube oil 930kW

57C

Wärtsilä Power Plant Cooling Solutions

Close loop radiator cooling

consumes no water!

05/03/2023 WARTSILA 2015

Engine-based power plants: super low water consumption

Recip simple cycle

Recip FlexicycleCooling Tower

Wärtsilä Flexicycle

Air Cooling

CCGT Steam Cycle

ENERGY SOLUTION FOR ARID AREASGuinness Record Energy Solution in the Jordan Desert

Recip Simple cycle normal start and ramp up

7 © Wärtsilä

600

500

400

300

200

100

00 60 120 180 240 300 360 420 480 540 600 seconds

Speed acceleration (25s)

Synchronisation (<5s)

rpm

80

70

60

50

40

30

20

10

0

90

100

Load %

660

rpmLoad

Prelubrication (30s)

Loading (< 9minutes)

Only 10 minutes from start command to full load

Engine in HOT STANDBY mode, i.e. preheated (HT water temp. >70 °C)

START-UPLOAD

FOLLOW

36

52

5048

4644

42

40

38

0 00:20 00:40 01:00 01:20 01:40 02:00 02:20 02:40 03:00 03:20 seconds

%

80

70

60

50

40

30

20

10

0

90

100

Load %

03:40

Efficiency %Load

Flexicycle™ operational flexibility

8 © Wärtsilä

Engine and steam turbine in HOT STANDBY mode, i.e. preheated

90

100

SC Loading 91% (< 10 minutes)

CC Loading 100% (60 minutes)+8 engines 0...100% load

8 engine running + CC, 8 engine standstill45.8 % plant net efficiency

50.0 % plant net efficiency

Example: 320 MW Flexicycle

LARGE SEA SHORE AREA USED FOR IWPP Exmple Kuwait

LARGE SEA SHORE AREA USED FOR IWPP Exmple Dubai

GCC GridMultiple

Reverse OsmosisMultiple

Arid build Power Plant

Inland area arid / or far from residentiel area Onshore build RO / Decentrilized RO`s

value propositions 1. Can build in the desert, away from the coast and residents Limit emissions at coastal and residential areasNo heat dumping in the seaSave the fauna and floraUse coastal land for water production (RO), residents, and tourismCreate industrial activity in desert

2.No water needed for coolingConserving natural resources (water)Radiator cooling is standard design

3. Can manage multiple daily starts/stops without impact on maintenance cost / scheduleAllows integration with renewable – solar and wind

4. Can utilize low grade fuel, HFO, natural gas and crude oil whichever is availableCan use the cheapest fuel available = Cost saving

5. Can operate at high efficiency at part loadsConserving natural resources (fuel) Lowering overall emissions

6. Can efficiently absorb hourly variations in power demandOptimize the use of existing less flexible plants for stable

base loadLower cost of operating existing power plants

7. Produce water with reverse osmosisPower and water production no longer interlinked means

higher flexibility for dispatching and maintenanceReduce total cost of water and power

8. Fuel and Power security for the countryMeet the steady yearly power demand on the housing

sector in matching stepsCan be built as distributed power without lost economies of

scale (USD/kW)Fast-track construction scheduleDiversification of power supply, lower risk of failure due to

natural events (force majeur)

May 3, 202313 © WärtsiläEngine technology is Smart Power Generation

19 © Wärtsilä

Five Main Value Propositions – Desert Power Plants1. Economic benefits *Net savings of $115 million/yr with 2,500 MW combustion engine plants, NPV is $1.6 billion (25 years)Reduce domestic fuel consumption by 3-5 trillion Btu per year (2,400 BOE per day)

2. Operational benefitsHigh efficiency on part load and base loadUnlimited fast starts/stops (no EOH) – no dispatch limitation, improves efficiency of existing plantsSwitch between fuels (e.g. low grade fuel, HFO, Natural Gas) online without stopping

3. Environmental benefitsDesert location keeps coastline cities clean for tourism and residential – no heat dumping

in the seaDry cooling reduces water consumption by ~97% and related CO2 emissions *Enabler of renewable technologies – integrates efficient back-up power for solar and wind

plants

4. National energy securityDistributed power with economies of scale – diversify power supply, low risk of natural force majeureMaintenance outage has negligible impact on lost power capacity

5. Construction benefits Modular design enables fast-track construction – 500 MW can be commissioned in 18

monthsMeet the steady yearly power demand in the housing sector in matching steps

* Combustion engine plant vs. super-critical steam plant

20

World Energy Council 2013

250

283 m

Estimated Site View25

1 m

THANKS A LOT FOR TAKING TIME TO LISTEN TO US

3 May 2023 WÄRTSILÄ POWER PLANTS22 © Wärtsilä