SignalDemandGridGreen powerChoice
01/18
← → / SPACE
SOURCE TNB Integrated Annual Report 2025 + TNB Analyst Briefing 1QFY2026 + IEA data-centre electricity outlook, 2025
TNB strategic briefing
The new load curve
Data centres can become a major growth engine if TNB manages load, grid readiness and green power as one portfolio
High-density evidence deck | June 2026
SignalDemandGridGreen powerChoice
02/18
← → / SPACE
SOURCE TNB Analyst Briefing 1QFY2026
Data centres are already large enough to change TNB's planning conversation.
Current signal
The signal is visible in four places: live load, connection queues, grid capex and green power contracts.
1,054 MW
actual load utilisation in March 2026
36
projects in system as at March 2026
4.5 GW
maximum demand across projects in system
8.3 GW
total pipeline including construction and ESA stages
SignalDemandGridGreen powerChoice
03/18
← → / SPACE
SOURCE TNB Analyst Briefing 1QFY2026
The full pipeline is almost eight times today's live load.
Load funnel
Today matters, but the queue matters more. The 8.3 GW pipeline shows the size of the load that may arrive next.
The gap between 1.05 GW and 8.3 GW is the planning window.
Actual load
Mar 2026
1.054 GW
In system
36 projects
4.5 GW
Full pipeline
59 projects
8.3 GW
SignalDemandGridGreen powerChoice
04/18
← → / SPACE
SOURCE TNB Analyst Briefing 1QFY2026 + TNB Integrated Annual Report 2025 + Calculated from stated MW, GWh and load-factor assumptions
Even a partly used pipeline can add 31% to 47% of FY2025 electricity sold.
Annual energy implication
The pipeline will not run at full power all day. Still, the energy requirement can be very large.
FY2025 TNB electricity sold: 140.1 TWh
60% load factor43.6 TWh
31% of FY2025 sales
75% load factor54.5 TWh
39% of FY2025 sales
90% load factor65.4 TWh
47% of FY2025 sales
SignalDemandGridGreen powerChoice
05/18
← → / SPACE
SOURCE TNB Analyst Briefing 1QFY2026 + The Star, TNB data-centre coverage, May 2026 + Calculated from stated MW, GWh and load-factor assumptions
The real risk is how fast the load ramps up.
Utilisation gap
Live load is still far below the committed and pipeline numbers. That gap can close as data halls fill with servers.
117%
reported year-on-year increase in data-centre load utilisation
Actual load
Mar 2026 live load
1.054 GW
In-system maximum
36 projects
4.5 GW
Full pipeline
59 projects
8.3 GW
The planning issue is the space between live load and the queue.
SignalDemandGridGreen powerChoice
06/18
← → / SPACE
SOURCE TNB Integrated Annual Report 2025
Commercial demand is already TNB's largest sales segment.
Customer mix
Values are FY2025 MWh by segment, converted to TWh.
SignalDemandGridGreen powerChoice
07/18
← → / SPACE
SOURCE IEA data-centre electricity outlook, 2025
Global data-centre electricity use is on track to more than double by 2030.
Outside-in benchmark
2024415 TWh
2030 base case945 TWh
Global data-centre power demand is becoming a grid planning issue.
The pattern is global. IEA expects data-centre electricity use to rise from 415 TWh to 945 TWh by 2030.
415 TWhestimated global data-centre electricity use in 2024
945 TWhIEA base case for 2030
15% p.a.projected growth from 2024 to 2030
>2xSoutheast Asia data-centre demand expected to more than double by 2030
SignalDemandGridGreen powerChoice
08/18
← → / SPACE
SOURCE TNB Bursa announcement on RP4 implementation + TNB Integrated Annual Report 2025
RP4 gives TNB a RM42.8b window to prepare the grid.
RP4 investment frame
RM42.821b
The investment case is simple: connect concentrated load, keep reliability high and move more green power through the grid.
Base capexRM26.554b
62% of RP4 allowance
Contingent capexRM16.267b
38% of RP4 allowance
FY2025 regulated capex deployed
ReliabilityRM5.4b
Demand growthRM5.3b
Energy transitionRM1.3b
SignalDemandGridGreen powerChoice
09/18
← → / SPACE
SOURCE The Star, TNB data-centre coverage, May 2026
Faster grid connection is now part of Malaysia's data-centre pitch.
Green Lane Pathway
Data-centre customers choose locations partly on power speed. Grid delivery is now part of the customer offer.
36 monthstraditional connection timeline
as little as 12 monthsGreen Lane Pathway
01
33
projects delivered under the framework by March 2026
02
Cluster strategy
Transmission investment concentrated around growth corridors
03
Johor
Named as an active cluster for the strategy
SignalDemandGridGreen powerChoice
10/18
← → / SPACE
SOURCE TNB Integrated Annual Report 2025 + The Star, TNB data-centre coverage, May 2026
Large loads will stress specific corridors before they stress the whole grid.
Cluster planning
Large loads arrive in clusters. TNB needs national capacity, but it also needs the right substations, corridors and timing.
Johor digital hubNear-term connection pressure
Growth corridorsClustered transmission planning
500 kV backboneSystem stability and renewable integration
BESS at Santong100 MW / 400 MWh grid-balancing asset
SignalDemandGridGreen powerChoice
11/18
← → / SPACE
SOURCE Suruhanjaya Tenaga CRESS Guidelines
Green power needs a clear operating flow behind the sales promise.
CRESS mechanism
CRESS matters because it shows how a green power deal moves from generator to customer through the grid.
01RED
Develops and operates new green generation
02Grid
Wheels electricity through the supply network
03Customer
Buys green electricity through direct contracts
04System operator
Schedules, dispatches and settles the flow
SignalDemandGridGreen powerChoice
12/18
← → / SPACE
SOURCE DayOne announcement, June 2025 + DayOne announcement, June 2026
Large customers are starting to buy power, green supply and storage together.
Green load demand
DayOne's agreements point to the next buying pattern: long-term renewable supply, solar capacity and storage in one package.
500 MW
renewable energy secured by DayOne through a 21-year CRESS agreement with TNB
1.5 GWp
solar capacity covered by later DayOne agreements with TNB subsidiaries
2.2 GWh
battery storage named in the same agreement package
SignalDemandGridGreen powerChoice
13/18
← → / SPACE
SOURCE TNB Integrated Annual Report 2025 + Suruhanjaya Tenaga CRESS Guidelines + The Star, TNB data-centre coverage, May 2026
Customers will choose the provider that removes the most execution risk.
Customer buying criteria
For hyperscale customers, electricity is an operating model decision. The winning offer makes speed, certainty and green supply easier to manage.
Speed
Can we energise within the project timeline?
Green Lane plus cluster capacity
Certainty
Can the customer trust the power plan?
Transparent milestones and constraints
Green supply
Can the load be matched with credible green electricity?
CRESS, RECs and new renewable supply
Reliability
Can uptime be protected as load grows?
Grid reinforcement, automation and BESS
Expansion
Can the campus grow in phases?
Portfolio planning across phases
SignalDemandGridGreen powerChoice
14/18
← → / SPACE
SOURCE TNB Integrated Annual Report 2025 + Suruhanjaya Tenaga CRESS Guidelines + The Star, TNB data-centre coverage, May 2026
TNB can treat the queue as requests, corridors or a green-load platform.
Strategic options
The same projects can be managed three ways. Each step gives TNB more control over demand, grid timing and green supply.
01
Reactive queue
Serve projects case by case
Lower coordination, slower learning
02
Corridor playbook
Plan by clusters and connection windows
Better speed and grid visibility
03
Green-load platform
Bundle connection, green supply, settlement and reporting
Best fit for large customers
Control over load, grid timing and green supply rises from left to right
SignalDemandGridGreen powerChoice
15/18
← → / SPACE
SOURCE TNB Integrated Annual Report 2025 + Suruhanjaya Tenaga CRESS Guidelines + Calculated from stated MW, GWh and load-factor assumptions
TNB should manage data centres as one portfolio.
Operating model
Every project should sit inside one view of demand, grid readiness and green supply.
ONE PORTFOLIO VIEW
MW + TWh + capex + green supply
01
Demand book
One view of actual load, connected capacity, ESA stage and ramp timing
02
Corridor plan
Cluster-level grid plan for substations, transmission and delivery windows
03
Green supply ladder
Clear path from GET and RECs to CRESS and dedicated new supply
04
Management dashboard
Monthly view of MW, TWh, capex, reliability, queue status and risk
SignalDemandGridGreen powerChoice
16/18
← → / SPACE
SOURCE Calculated from stated MW, GWh and load-factor assumptions
The first 12 months should build one shared view of the load curve.
Next moves
Start small. Use one corridor, one customer-segment view and one dashboard to create the first working system.
0-90 daysBuild the load book and source-of-truth dashboard
01
90-180 daysMap the first two growth corridors and connection bottlenecks
02
180-270 daysLink each large customer to green supply options and milestones
03
270-365 daysRun monthly management review with decisions, owners and risks
04
SignalDemandGridGreen powerChoice
17/18
← → / SPACE
SOURCE TNB Integrated Annual Report 2025 + TNB Analyst Briefing 1QFY2026 + Suruhanjaya Tenaga CRESS Guidelines
A useful dashboard should answer five plain questions.
Management metrics
The dashboard should help leaders see the decision quickly, with the numbers in one place.
Management dashboard
One view for monthly decisions
01
How much load is live?
Actual MW and annualised TWh
02
How much is committed?
Connected, under construction and ESA-signed MW
03
Where will it land?
Corridor, substation and project-stage view
04
What must be built?
Capex, permits, delivery milestones and risks
05
How green is the load?
CRESS, RECs, green supply and residual exposure
SignalDemandGridGreen powerChoice
18/18
← → / SPACE
SOURCE TNB Integrated Annual Report 2025 + TNB Analyst Briefing 1QFY2026 + TNB Bursa announcement on RP4 implementation + IEA data-centre electricity outlook, 2025 + Suruhanjaya Tenaga CRESS Guidelines + The Star, TNB data-centre coverage, May 2026
Bottom line
The new load curve becomes easier to manage when TNB makes it visible early.
Data centres bring growth and concentration at the same time. TNB wins by managing demand, grid readiness and green supply together.
Primary sources: TNB Integrated Annual Report 2025, TNB Analyst Briefing 1QFY2026, TNB RP4 Bursa announcement.
External sources: IEA data-centre electricity outlook, Suruhanjaya Tenaga CRESS Guidelines, The Star data-centre coverage.