See Bull Run's current pages for CG Power and Industrial Solutions and Siemens Energy India. Related research includes Siemens Limited vs CG Power and Hitachi Energy India vs Siemens Energy India.

The hidden comparison: Power Systems vs Power Transmission

The revenue difference is only about ₹16 crore.

That is barely 1%.

This is arguably the cleanest direct transmission-equipment comparison available between the two companies.

CG currently wins segment margin narrowly

The segment accounting definitions are not guaranteed to be identical.

But both are post-depreciation operating-profit-style measures, making this comparison much cleaner than comparing CG EBITDA with Siemens Energy EBIT.

Both transmission businesses are extraordinarily profitable

20%-plus segment margins are exceptional for heavy electrical-equipment businesses.

They indicate:

• high factory utilization;
• strong pricing;
• scarce manufacturing capacity;
• good order mix;
• operating leverage.

Why are transformers and switchgear suddenly so profitable?

The electricity system is undergoing several simultaneous investment waves:

• renewable-energy transmission;
• data centres;
• urban demand;
• manufacturing expansion;
• rail electrification;
• grid modernization;
• export shortages.

Transformer capacity cannot respond immediately.

Long manufacturing lead times create scarcity

High-voltage transformers and switchgear require:

• specialized factories;
• high-voltage laboratories;
• large copper and steel supply chains;
• engineering approvals;
• customer qualification;
• long testing periods.

That gives established manufacturers significant pricing power during a tight cycle.

CG's Power Systems growth is especially strong

Quarterly Power Systems sales increased approximately 31%.

PBIT reached ₹324 crore.

Power Systems order intake was approximately ₹3,106 crore.

Backlog reached approximately ₹14,434 crore.

Power Systems backlog increased 59%

This is the strongest single operating trend in CG's mature businesses.

More than 80% of the standalone backlog now sits in Power Systems.

CG therefore looks increasingly like a power-equipment company

Historically, CG Power had major exposure to motors and industrial systems.

Today, the growth narrative is increasingly driven by:

• transformers;
• switchgear;
• grid equipment;
• renewable transmission;
• data centres.

Its segment book-to-bill is extremely strong

CG Power Systems:

• orders: ₹3,106 crore;
• sales: ₹1,402 crore.

Approximate book-to-bill:

2.22x.

This is a Bull Run analytical calculation.

Orders are therefore arriving at more than twice the current revenue rate

That creates pressure to add manufacturing capacity.

CG has already begun doing so.

The Nashik EHV facility materially increases switchgear capacity

CG commissioned S3 Unit-II during June 2026.

The facility adds approximately:

• 7,200 EHV circuit breakers per year;
• 33 kV to 245 kV product capability;
• high-voltage testing infrastructure.

The company indicated that this raises EHV circuit-breaker manufacturing capacity by roughly 80%.

This is capex backed by an existing order book

That reduces one major investment risk.

CG is not building switchgear capacity purely in anticipation of hypothetical demand.

The Power Systems backlog already exceeds ₹14,000 crore.

Siemens Energy is expanding transformers just as aggressively

The company has multiple transformer-capacity phases underway.

An earlier roughly ₹740 crore programme includes:

• Kalwa transformer capacity;
• switchgear expansion at Chhatrapati Sambhajinagar.

Kalwa is expected to double transformer capacity

Management has discussed expansion from approximately:

• 15,000 MVA;
• to approximately 30,000 MVA.

This is a substantial brownfield increase.

A second ₹2,060 crore transformer programme follows

Siemens Energy has approved further greenfield capacity of roughly:

30,000 MVA.

The new programme is expected to come online progressively around FY30–FY32.

Siemens Energy is therefore planning for a much longer grid cycle

A factory scheduled into the early 2030s only makes economic sense if management believes demand is structural rather than temporary.

Key drivers include:

• renewables;
• data centres;
• export demand;
• replacement cycles;
• interstate transmission;
• industrial electrification.

CG's direct backlog is larger today

Standalone CG backlog:

₹17,333 crore.

Consolidated backlog:

₹18,965 crore.

Siemens Energy backlog:

₹19,331 crore.

The consolidated backlogs are almost identical

This makes valuation especially interesting

Investors are not paying for radically different backlog sizes.

They are paying for different:

• business mixes;
• growth expectations;
• capital-allocation opportunities;
• future optionality.

CG's standalone business is larger by quarterly revenue

Standalone sales reached approximately ₹3,061 crore.

Siemens Energy revenue was approximately ₹2,486 crore.

CG therefore generated around 23% more operating revenue.

Yet Siemens Energy generated more PAT

Siemens Energy PAT:

₹441 crore.

CG standalone PAT:

₹364 crore.

CG consolidated PAT:

₹308 crore.

This is a major earnings-conversion advantage

Siemens Energy generated around:

• 21% more PAT than CG standalone;
• 43% more PAT than CG consolidated.

despite lower revenue.

Why does CG consolidated profit fall below standalone profit?

The semiconductor platform requires costs before revenue reaches meaningful scale.

Management indicated an approximately ₹43 crore Q1 impact from semiconductor investment.

This is not a normal transformer-company expense

CG is effectively running:

• a profitable electrical-equipment company;
• and a semiconductor manufacturing startup;

inside the same listed structure.

CG Semi started commercial production after Q1

The G1 OSAT facility in Sanand began commercial production in July 2026.

The platform is backed by:

• CG Power;
• Renesas Electronics;
• Stars Microelectronics.

The broader investment exceeds ₹7,600 crore

This is enormous relative to CG's historical capital base.

It creates both:

• transformational upside;
• transformational capital-allocation risk.

OSAT is not the same business as power transformers

Semiconductor assembly and testing requires:

• clean manufacturing;
• advanced packaging equipment;
• yield control;
• technology transfer;
• global customer qualifications;
• high utilization.

CG cannot simply transfer its electrical-equipment moat into semiconductors automatically.

The upside is substantial if it succeeds

India currently imports most of its semiconductor value chain.

A scaled domestic OSAT platform can participate in:

• automotive electronics;
• industrial electronics;
• consumer devices;
• power semiconductors;
• communications;
• global outsourced packaging.

Siemens Energy does not carry equivalent startup optionality

Its growth plan remains closer to existing competencies:

• transformers;
• GIS;
• substations;
• steam turbines;
• gas turbines;
• industrial generation;
• service.

This creates lower strategic novelty.

Lower novelty generally means lower execution risk

Siemens Energy is investing heavily.

But it is investing in categories where the Siemens engineering ecosystem already has decades of experience.

Power Generation is a hidden strength

Siemens Energy's Power Generation segment generated approximately:

• ₹1,099 crore quarterly revenue;
• ₹245.5 crore segment result.

That implies a segment margin of roughly:

22.3%.

Both Siemens Energy segments therefore currently earn above 20%

Power Transmission:

~21.6% segment margin.

Power Generation:

~22.3% segment margin.

This explains why overall profit conversion is so strong.

CG's second mature segment is much weaker

Industrial Systems generated:

• ₹1,671 crore sales;
• approximately ₹148 crore PBIT;
• 8.8% PBIT margin.

A roughly ₹20 crore one-time Railways provision affected the quarter.

Industrial Systems still has attractive franchises

The business includes:

• motors;
• drives;
• rail equipment;
• automation;
• industrial electrical systems.

Management highlighted double-digit motor growth.

But the blended structure dilutes Power Systems margin

CG Power Systems earns 23.1% PBIT.

Industrial Systems earns 8.8%.

The result is a standalone EBITDA margin of approximately 16.9%.

Siemens Energy's two segments are currently more consistently profitable

This is perhaps the biggest quality difference in Q1/Q3.

CG has one exceptional mature segment, one lower-margin mature segment and one startup segment.

Siemens Energy currently has two high-margin operating segments.

CG's consolidated revenue still grew about 14%

Standalone sales grew approximately 16%.

Power Systems grew 31%.

Industrial Systems grew 6%.

The business is therefore being pulled increasingly toward power infrastructure.

Siemens Energy grew even faster

Revenue increased approximately 39.3%.

Profit from operations increased roughly 74%.

PAT increased approximately 68%.

This is much faster current earnings growth.

The backlog-growth comparison favours CG

CG standalone backlog increased approximately:

45%.

Siemens Energy backlog increased approximately:

16.4%.

CG Power Systems backlog alone increased approximately 59%.

CG therefore has stronger current order-book acceleration

Siemens Energy has stronger current income-statement acceleration.

That creates a useful contrast:

• CG: faster future contracted-growth signal;
• Siemens Energy: stronger current profit conversion.

Both are exposed to data centres

AI infrastructure requires:

• transformers;
• switchgear;
• high-voltage substations;
• grid connections;
• reliable generation;
• power quality.

CG has won a major US data-centre transformer order

The company has expanded its transformer opportunity beyond India's domestic transmission market.

Export data-centre orders can help:

• fill new factories;
• diversify customers;
• improve hard-currency revenue.

Siemens Energy is also supplying US data-centre transformer demand

Its earnings presentation highlighted export transformer deliveries and data-centre-related grid projects.

Both companies therefore have a credible global scarcity opportunity.

Rail gives CG another adjacent growth engine

CG Industrial Systems participates in:

• traction motors;
• railway propulsion-related equipment;
• signaling relays;
• Vande Bharat programmes.

Siemens Energy is less directly exposed to rolling stock after the demerger

Rail Mobility largely sits with Siemens Limited rather than Siemens Energy India.

This is an important distinction when comparing CG with the correct Siemens listed entity.

Current standardized ROCE favours CG

CG's standardized ROCE is materially higher

Approximately 25.7% versus Siemens Energy at 9.9%.

But the comparison needs the same caveat as every current Siemens Energy article.

Siemens Energy has only a short post-demerger listed history

Siemens Energy was separately listed only in June 2025.

Its current quarterly segment margins above 20% suggest underlying economics that are stronger than the historical standardized ratio alone implies.

CG's future ROCE faces a semiconductor test

₹7,600 crore-plus of semiconductor investment can materially increase the capital-employed denominator.

If CG Semi earns attractive returns, group ROCE can remain healthy.

If it struggles to reach utilization, group ROCE can decline even while Power Systems remains excellent.

This is CG's biggest long-term capital-allocation question

Transformers are currently throwing off strong returns.

Management is using part of the company's financial capacity to enter a much more technology-intensive industry.

The opportunity is large.

So is the execution risk.

Valuation currently favours Siemens Energy

CG is worth about 17% more

Market capitalization:

• CG Power: approximately ₹1.463 lakh crore;
• Siemens Energy India: approximately ₹1.246 lakh crore.

CG therefore carries approximately ₹21,700 crore more market value.

Yet Siemens Energy currently generates more profit

Quarterly PAT:

• Siemens Energy: ₹441 crore;
• CG standalone: ₹364 crore;
• CG consolidated: ₹308 crore.

This is why the earnings multiples differ so dramatically.

CG's 150x P/E embeds a major future-growth premium

The market is paying for:

• 59% Power Systems backlog growth;
• 23.1% Power Systems PBIT margin;
• switchgear expansion;
• transformer scarcity;
• exports;
• CG Semi.

Siemens Energy's 84x P/E is still expensive

The stock is not conventionally cheap.

But the earnings hurdle is lower than CG's.

Siemens Energy can justify its valuation with:

• continued 20%-plus margins;
• backlog execution;
• transformer capacity expansion;
• export growth;
• Power Generation profitability.

Price-to-book reverses the conclusion

CG trades at approximately 18.4x book.

Siemens Energy trades at approximately 25.9x.

The current book-value multiples reflect the different return histories and demerger structures.

P/E is presently the more useful current earnings lens.

What must CG Power prove?

• Power Systems backlog must convert without margin dilution.
• 23%-level segment PBIT margins need to remain durable.
• New EHV capacity should reach high utilization.
• Industrial Systems margins need recovery.
• Semiconductor startup losses must decline.
• CG Semi must secure customers and scale commercial production.
• Large semiconductor capex must not destroy group ROCE.
• A 150x P/E requires exceptional earnings growth.

What must Siemens Energy India prove?

• 21.9% overall operating margin must prove sustainable.
• Both Power Transmission and Power Generation need continued 20%-plus economics.
• ₹19,331 crore backlog should continue growing.
• Ongoing transformer and GIS expansions need disciplined execution.
• The ₹2,060 crore future transformer factory must avoid overcapacity.
• Export growth should remain supportive.
• Post-demerger ROCE should improve as the listed history matures.

What could make CG Power outperform?

Its Power Systems backlog can convert faster than expected while transformer scarcity persists.

If CG Semi simultaneously becomes a profitable semiconductor platform, the company would gain a new earnings stream that today's Siemens Energy India does not possess.

What could make Siemens Energy outperform?

It already earns more PAT at a lower market capitalization.

If current 20%-plus segment profitability proves durable while transformer capacity expands, earnings can compound without requiring a new business model.

Which has the stronger transmission business today?

It is extremely close.

CG Power Systems generated ₹1,402 crore revenue and 23.1% PBIT margin.

Siemens Energy Power Transmission generated approximately ₹1,386 crore revenue and roughly 21.6% segment margin.

Which has the larger total backlog?

Siemens Energy India, barely, versus CG consolidated.

₹19,331 crore versus approximately ₹18,965 crore.

CG standalone backlog was ₹17,333 crore.

Which backlog is growing faster?

CG Power.

Standalone backlog increased approximately 45%, while Power Systems backlog increased approximately 59%.

Siemens Energy backlog increased approximately 16.4%.

Which has higher overall current profit conversion?

Siemens Energy India.

It generated ₹441 crore PAT on ₹2,486 crore revenue versus CG standalone PAT of ₹364 crore on ₹3,061 crore sales.

Which has higher standardized ROCE?

CG Power.

Approximately 25.7% versus Siemens Energy around 9.9%, with the short post-demerger history caveat.

Which has greater semiconductor upside?

CG Power.

CG Semi entered commercial OSAT production in July 2026.

Which is more diversified across energy generation?

Siemens Energy India.

Power Generation contributes roughly 44% of current quarterly revenue.

Which stock is cheaper?

Siemens Energy India on trailing earnings.

Approximately 83.7x P/E versus CG Power around 150.4x.

Which is better: CG Power or Siemens Energy India?

CG Power currently has the stronger concentrated growth-and-optionality profile. Its Power Systems business is growing more than 30%, earning 23.1% PBIT margins, carrying rapidly expanding backlog and adding significant EHV capacity. CG Semi creates a second potential long-term value driver.

Siemens Energy India currently has the stronger earnings-to-valuation profile. Its transmission business is almost the same quarterly revenue size as CG Power Systems, overall PAT is higher, both operating segments currently generate roughly 20%-plus margins and the stock trades at a much lower P/E.

The decision therefore comes down to how much investors should pay for optionality.

CG offers more potential future transformation.

Siemens Energy offers stronger current earnings conversion.

At September 2026 valuations, Siemens Energy India has the stronger current risk-adjusted setup on earnings and P/E. CG Power can justify its premium if Power Systems sustains scarcity economics and CG Semi becomes a meaningful profitable business without diluting ROCE. Until then, investors are paying a substantial premium for future optionality that Siemens Energy does not need to prove.

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