Part of the sector-themes series. Educational research notes, sector level, not investment advice.
1. What the theme contains
| Segment | Includes | How earnings work |
| Generation (thermal, hydro, nuclear) | Utilities, boiler-turbine makers, EPC | Regulated returns, long cycle |
| Transmission | Developers (regulated tariff / TBCB), EPC, towers, conductors | Regulated ROE, order book |
| Grid equipment | Transformers, switchgear, HVDC, reactors | Order book, pricing power |
| Cables & wires | Industrial (B2B) and retail (B2C) | Volume, copper pass-through |
| Distribution | Smart meters, discom upgrades (RDSS) | Government-scheme driven |
| Storage | BESS, pumped hydro | Tender tariffs, VGF |
| Power exchanges | Day-ahead / real-time trading | Volume fees |
2. Positives
- Demand beat expectations. Record peak 270.8 GW on 21 May 2026. Sep 2026 consumption +11.35% YoY to 162 BU; Sep peak 269 GW vs 229 GW a year ago (partly a weak-monsoon-month base effect). Official projections: ~289 GW peak in FY27, ~459 GW by 2035-36.
- The evening gap needs firm power and storage. On the record day, shortage was 0.18 GW in solar hours but 2.57 GW after sunset. Supports thermal additions (~86 GW more needed by FY36), BESS (targets ~13.5 GW by FY27, ~51.5 GW by FY32) and nuclear.
- The grid is the bottleneck, so spending is large and multi-year. NEP: ~₹9 trillion of transmission investment FY23-32. ICRA: ₹5-6 trillion FY27-FY32. Need ~20,000 ckm of lines and ~120 GVA of substations every year. Substation base 1,451 GVA (Mar 2026) vs 2,412 GVA FY32 target.
- Equipment makers have pricing power and visibility. Domestic transformer capacity 375 GVA (FY25) to ~690 GVA (FY28E), still short of demand. Global large-transformer lead times 2-4 years. Industry EBITDA margins went from low single digits to mid-teens. Most contracts are IEEMA-indexed, so commodity costs pass through. Example: one large T&D maker's Q1 FY27 showed a record ₹32,222 cr backlog, revenue +69%, 16% EBITDA margin, exports ~34% of orders.
- Export opening. Imports supply ~80% of US power transformers.
- New demand sources. Data centres 2.2 GW (2025) to ~12 GW by 2030 (Wood Mackenzie). SHANTI Act 2025 opens nuclear to private players (8.8 GW now, 100 GW target by 2047). Smart meters: ~19.8 crore sanctioned under RDSS vs ~3.9 crore installed (Dec 2025).
- Energy security. Crude at $113-117 strengthens the case for electrification.
3. Negatives and risks
- Valuation. In Apr 2026, leading grid-equipment names traded at ~67-95x FY27E P/E (Motilal Oswal). With Nifty ~14% off its high and FPIs selling, high-P/E stocks de-rate first.
- Execution delays. Only ~12% of TBCB projects commissioned by Mar 2026 finished on time; median delay over 10 months. FY25 inter-state line additions were 8,830 ckm vs a 15,253 ckm target (42% short). Right-of-way, land and Great Indian Bustard restrictions (100,000+ sq km in Rajasthan and Gujarat).
- Tendering slowed. Transmission schemes awarded fell from 45 (FY25) to 16 (FY26), blamed on equipment capacity limits. RE awards fell to 5.8 GW in 8M FY26 vs 40.6 GW in FY25; 40-50 GW of projects have no signed PPA.
- Curtailment. Projects on temporary connectivity in Rajasthan and Gujarat lose 50-60% of output in solar hours; compensation petitions are pending at CERC.
- Cable margins. Strong volumes but margins slipping. Example: one large cable maker's Q2 FY27 revenue rose 38.5%, but EBITDA margin fell to 10.6% from 11.4% and it went from net cash to net debt. New large entrants (announced 2025) add competition.
- Supply catch-up later. Transformer capacity nearly doubling by FY28 could ease pricing from 2028 on.
- Discom finances. ~₹7.4 lakh cr discom debt (Mar 2024) means slow payments and slow PPA signing.
- Macro. Rupee ~95/$ raises imported input costs (CRGO steel, cells, components). Higher bond yields hurt utilities valued like bonds. Repo 5.50% and CPI 5.54% leave little room for rate cuts. Copper is volatile.
- Exchange moat. Market coupling threatens the dominant exchange's pricing advantage.
- Concentration. PGCIL's share of ISTS projects; a 50% cap per entity has been proposed.
4. Segment scorecard
| Segment | Near term (6-12m) | Long term (3-5y+) | Swing factor |
| Grid equipment (transformers, switchgear, HVDC) | Mixed: strong earnings, stretched P/E | Strong | Order inflow restart, export wins, valuation |
| Transmission EPC, towers, conductors | Mixed | Strong | Tender pipeline, execution |
| Regulated utilities (transmission, generation) | Defensive but sensitive to yields | Steady | Bond yields, capex delivery |
| Thermal generation and BTG equipment | Positive (demand surprise) | Positive to ~2032, ESG question after | Coal costs, execution |
| Cables & wires | Weak (margins, competition) | Positive on volume | Copper, competition |
| Smart meters, distribution | Positive on volume | Positive | Discom payments, working capital |
| Storage (BESS, pumped hydro) | Early stage | Strong | Aggressive tariffs (thin returns), Chinese cells |
| Nuclear | A story, not earnings yet | Long-dated option | Liability rules, 60-72 month build times |
| Power exchange | Volumes up, moat in question | Uncertain | Market-coupling outcome |
5. Price action now
Cables and power equipment are among the weaker pockets of the Oct 2026 correction. One large cable stock is ~34% below its Aug high after its Q2 margin miss, and power-equipment names fell 6-8% in the week to 22 Oct. Demand data (Sep +11%) does not show the business weakening. This looks like a valuation reset with fundamentals intact. The question is price, not the story.
6. What to watch
- Monthly demand data (CEA / Grid-India), especially winter months.
- Quarterly transmission tender awards; ckm added vs target.
- Q2 FY27 results of equipment makers: order inflow, margins, export mix.
- Copper and CRGO prices; rupee.
- CERC rulings on curtailment compensation; market-coupling rules.
- Discom payment discipline; RDSS meter installation pace.
- Brent: staying above $110 keeps yield and inflation pressure on the high-P/E part of the sector.
Bottom line
Power & grid has one of the strongest multi-year demand cases in Indian markets: demand growing over 10% this year, a grid running behind, and equipment in short supply.
What can work: segments with order visibility and pricing power, bought at sensible valuations, and volume stories in distribution and storage.
What may not: paying peak multiples and hoping they rise further, cable makers if competition bites, RE developers exposed to curtailment and unsigned PPAs, and expecting nuclear or data centres to move earnings in the near term.