Steel in the Renewable Energy Economy

What the Clean Energy Build-Out Actually Means for What You Buy, When You Buy It, and How Much You Pay
 

Let's Start with the Honest Version

Here's what most people in the steel trade know: renewable energy is growing fast, and that's good for steel demand. Here's what most people don't actually sit down and work out: how much steel, from where, in what specification, and by when. 

That gap between knowing the trend and understanding the numbers is exactly where procurement decisions go wrong. So let's close it, sector by sector. 

Solar: You're Already Feeling It. Here's Why.

India added 44.61 gigawatts (GW) of solar capacity in FY 2025–26 alone, the highest ever in a single year, pushing cumulative installed solar to 150 GW by March 2026. 

Every megawatt of utility-scale solar needs 35–45 ton of structural steel: mounting frames, tracker rails, module racking, earthing systems. Run that math across FY26's addition, and you're looking at an estimated 1.56 to 2.68 million ton of structural steel consumed in a single year, just from solar.

This is where the sustainability of mild steel becomes commercially relevant, not just environmentally. Pre-galvanised sections and hot-dip galvanised angles are the dominant products here because mild steel's weldability, corrosion resistance, and 100% recyclability makes it the only sensible structural choice for a solar farm designed to stand for 25+ years in an outdoor, corrosive environment. There is no viable substitute at scale.

And with 69.12 GW still under implementation nationally, this demand doesn't slow down next year. It compounds. 

Wind: Less Visible, But Far Heavier on Steel Per MW

Wind gets less attention than solar in procurement conversations, which is a mistake, because it consumes significantly more steel per megawatt. 

Onshore turbines: 90–130 ton per MW. Offshore foundations: 120–180 ton per MW in high-grade structural plate. India added 6.05 GW of wind capacity in FY26, setting a new single-year record. Meanwhile, the government's Wind Energy Roadmap (June 2025) targets 4 GW of offshore wind tenders across Gujarat and Tamil Nadu, while expanding onshore wind focus to new geographies in Telangana, Madhya Pradesh, and Odisha. 

When offshore wind moves from tender to fabrication, the per-MW steel intensity roughly doubles compared to current onshore norms. EPC contractors who are not planning for this now will find themselves chasing plate in a very tight market. 

One more thing worth knowing: specification requirements are already hardening. Wind projects now demand EN 10025-2 S355/S420 plate with certified mill test reports, impact test documentation, and full material traceability. Generic supply without proper provenance documentation is simply not passing quality gates on major projects anymore.

Green Hydrogen: The Demand Story Nobody Has Priced In Yet

If solar is the present and wind is the near future, green hydrogen infrastructure is the demand story most buyers haven't fully factored into their planning yet. 

India's National Green Hydrogen Mission targets 5 MTPA of green hydrogen production by 2030. Achieving that requires massive volumes of electrolyser banks, high-pressure storage vessels, compressor skids, and pipeline networks, all predominantly built from steel. 

JSW Energy has already commissioned India's first commercial-scale green hydrogen plant, supplying 3,800 TPA to JSW Steel's Vijayanagar DRI facility. A June 2025 IOCL tender discovered green hydrogen at INR 397/kg (USD 4.67/kg), a price point that makes India commercially competitive globally. And Kakinada in Andhra Pradesh has been declared India's first Green Hydrogen Hub, which signals that this infrastructure investment is landing directly in South India. 

The key point for buyers: this demand runs alongside solar and wind procurement including pressure-rated piping, structural skids, plant buildings, ACSR cabling, it doesn't replace it. It adds to it. 

Grid and Transmission: The Part Everyone Forgets Until They Can't

None of the above matters without transmission infrastructure to carry the power. And transmission is quietly one of the most steel-intensive parts of the entire renewable energy build-out. 

India's Union Budget 2026 allocated ₹600 crore to the Green Energy Corridor for developing 6,000 km of new intra-state transmission lines. The Reformed Linked Distribution Scheme (RLDS) got a 15% funding increase to ₹18,000 crore for smart grid and metering upgrades.  

A single high-voltage transmission tower contains 15.5–21.7 ton of galvanised structural steel. Dog ACSR wire carries 0.4 kg of steel per metre. Over 1,000 km of new HV line, that adds up to tens of thousands of tonnes is arriving in market alongside the solar and wind demand it's meant to support. 
 

Green Steel and Low Carbon Steel: This Is Now a Procurement Conversation

Here's where the market shifts from demand to specifications and where buyers who aren't paying attention will find themselves either non-compliant or overpaying. 

India became the world's first country to formally define green steel with its Green Steel Taxonomy in December 2024: steel produced below 2.2 ton of CO₂ equivalent per tonne of finished product qualifies. The National Green Steel Mission, backed by approximately ₹15,000 crore, will deploy PLI-linked incentives and, critically, a mandatory Green Public Procurement (GPP) requirement from FY28. Government-funded projects will have to source certified low carbon steel. That's less than two financial years away. 

The production pathway is H₂-DRI/EAF (hydrogen-based direct reduced iron with electric arc furnace). Conventional BF-BOF steelmaking emits 2.20-2.60 ton of CO₂ per ton of steel. Shifting to H₂-DRI/EAF brings that down to 0.55–0.65 ton for scrap based steel, a reduction of 75%. Sustainable steel production at this scale is no longer a long-range target, it's an active capital deployment story. Tata Steel has commissioned a new scrap-based EAF in Ludhiana (₹3,200 crore). JSW is adding 10 MTPA of green steel capacity at Salav. 

And then there's the EU factor. The Carbon Border Adjustment Mechanism (CBAM) entered its definitive phase on 1 January 2026. For Indian steel exported to Europe via BF-BOF routes, the exposure is ₹16583.42/ton by 2034. That reprices the entire supply chain. 

EY projects green steel demand in India at 4.49 MT by FY30, 73.44 MT by FY40, and 179.17 MT by FY50. Aligning your procurement now, before the GPP mandate kicks in, is a strategic advantage. Waiting until FY28 means you're at the back of a queue.

What This Actually Means If You're Buying Steel in India Right Now

On demand: India needs to add 217 GW more to hit its 500 GW target by 2030. Finished steel demand is growing 7–8% in FY26, with capacity utilisation at 78–80%. Demand is structural. It doesn't respond to rate cycles the way construction demand does. 

On timing: Plan procurement 60–90 days ahead of installation windows. Galvanised sections, pre-galvanised profiles, and EN-grade plate will face supply pressure in H1 FY27 as offshore wind pre-orders and solar commissioning peaks collide. Spot purchasing in that environment is a risk you don't need to carry. 

On specifications: Solar developers now require ZAM-coated or hot-dip galvanised sections tested to IS 2629/IS 4759. Wind projects require EN 10025-2 grade certification with full MTCs. 

On price: Carbon pricing, coking coal import dependency, and the sustainable steel premium compound into structural price pressure. BF-BOF prices will rise through 2030 as CBAM costs phase in. Buyers who lock medium-term supply agreements now will manage this risk better than those running on spot.

If You're Based in South India, Here's Your Specific Picture

South India is not a passive participant in this transition. It is the epicentre. 

Tamil Nadu ranks 4th nationally in solar (10.4 GW) and holds India's second-highest wind capacity. Renewables already supply 24.75% of the state's electricity mix (April 2025), with wind capacity up 43% year-on-year. Tata Power has committed ₹70,000 crore to build 10 GW of solar and wind in Tamil Nadu over the next five to seven years. Offshore wind tenders are also incoming for the state under the June 2025 roadmap.

Karnataka is home to the 2 GW Pavagada Solar Park and the AM/NS Vijayanagar DRI plant, now running India's first commercial green hydrogen DRI operation. Andhra Pradesh hosts AM/NS India's planned 7 MTPA integrated steel mill (890 hectares acquired March 2025) and the Kakinada Green Hydrogen Hub. Telangana runs India's largest floating solar plant at 100 MW, with 30 GW more planned.

For buyers across Chennai, Hyderabad, Bengaluru, Coimbatore, and Visakhapatnam: localised demand peaks are already forming around project commissioning windows. The products under pressure are galvanised MS angles, channels, structural hollow sections (SHS), and pre-galvanised sections for solar sub-structures and mounting systems. If you're sourcing these in Q3 FY26 or beyond, plan ahead.

Why Your Supply Partner Choice Matters More Than Usual Right Now

Renewable energy is expanding at speed, and steel prices are moving, unpredictable and reactive. For buyers, that combination creates real procurement risk. Why, you ask? Because traditional procurement processes aren't built to react fast enough. 
South India holds India's 4th largest solar capacity and 2nd largest wind capacity. It's home to a 2GW solar park and the country's first commercial green hydrogen DRI facility. The region is not watching the energy transition from the sidelines. It is leading it.
In a market where multiple sectors are pulling on the same supply simultaneously, where grade specifications are tightening, and where the gap between today's price and tomorrow's price is narrowing by the week, having live market data in your hands is not a convenience. It gives you the advantage of buying on your terms, rather than the market's. 
Every renewable energy project has a larger mission: building a cleaner, more resilient India. Steel procurement is essential to that mission, but it should never become a bottleneck to progress. 

Hashtagsteel simplifies steel sourcing through verified suppliers, transparent pricing, and real-time availability, helping project teams secure the materials they need with greater speed and confidence.  

Because the companies that lead the energy transition will not be defined by how much time they spend procuring steel. They will be defined by how efficiently they deliver the projects that shape India’s future. 

Let HASHTAGSTEEL handle the steel. You focus on building a greener India.

The 12-Month View: What's Coming in 2026–2027

India's FY27 RE additions are projected to match or exceed the record 55.3 GW of FY26. Offshore wind tenders will begin converting to actual fabrication and foundation steel orders,  at per-MW steel intensities 5× higher than current onshore norms. H₂-DRI/EAF investments from JSW, Tata Steel, and AM/NS India will reshape the country's raw material and scrap supply chains. And CBAM cost phase-in will progressively compress the gap between green steel and conventional steel pricing, making early-mover procurement of low carbon steel look less like a premium decision and more like the obvious one. 

The renewable energy economy runs on steel. The buyers who understand the specifics, not just the trend, will procure smarter, plan earlier, and pay less. 

References

• JSW Steel to expand capacity at Salav unit to 10 million tonne
• Hot-Dip Galvanizing Solutions That Maximize Tower Lifespan & Corrosion Protection
• Needed Wind Turbines & Solar Panels Will Use Tiny Amounts of Steel
• Green Steel Initiative
• India bets on steel infra