India’s energy infrastructure – Why investments in power generation will not be enough

Later afternoon in Ankleshwar, Gujarat, a Pharmaceutical API manufacturer faces a glitch in power supply, with when its at peak power utilization. The incoming 11 kV feeder from the state distribution utility (DISCOM) experiences a 14-second voltage sag followed by a momentary grid trip. Within 18 seconds, the two 500 kVA diesel generators (DGs) roar to life and take the load.

Even with this "100% power backup." the 18-second glitch has already done damage. The Programmable Logic Controllers (PLCs) was reset, halting the the chilled-water circulation loop., breaching the thermal threshold in one of the reactors.  An entire batch of high-margin API intermediate solidified into hazardous waste.

This led to real costs – nearly ₹20 lakh of raw material was ruined, 14 hours of downtime followed when unproductive labour cleaned waste and flushed out lines. Maintenance was also hit as VFD capacitors were degraded, and annual maintenance budgets had to go up 20%.  

This factory faced something that is central to India’s power paradox. Gujarat is a power surplus state, yet micro-outages impacts process industries and causes many hidden costs. When the grid lacks storage and last-mile distribution resilience, generation capacity at the macro level fails to translate into consistent energy supply to commercial and industrial (C&I) operators.

India’s Energy Demand is Growing at an Unprecedented Rate

India’s energy landscape is shifting fundamentally. While national headlines celebrate massive capacity additions in solar and wind, power generation is only half the story. Until the infrastructure for storage and distribution catches up, more power will not ensure operational consistency, reinforcing the need for critical power solutions.

The macro context of India's grid is defined by rapid electrification, but the nature of that demand is changing. According to the Central Electricity Authority’s (CEA) 20th Electric Power Survey (Mid-Term Review) and the National Generation Adequacy Plan, India has exited its historical 4.5–5% linear demand growth trajectory and entered a structural compounding phase at 7.06% CAGR.

Peak electricity demand has risen from 250–270 GW to a projected 366 GW by 2030 (with ICRA estimating an upside scenario touching 400 GW if industrial capex accelerates) and 459 GW by 2035–36. Total annual energy consumption is set to nearly double from 1,694 Billion Units (BU) to 3,365 BU by 2035–36.  

New Demand Sources and Renewable energy drives the Power Electricity Industry  

4 Key Structural Demand Growth Drivers:

‍The surge in power consumption is anchored by aggressive EV fleet adoption, the expansion of high-density data centres, and increased industrial automation.  

1. Continuous Process Manufacturing & PLI Industrialization (+85 to 110 GW by 2035): Stimulated by Production-Linked Incentive (PLI) schemes across specialty chemicals, semiconductors, solar wafer/ingot manufacturing, and pharmaceuticals. Unlike legacy batch workshops, modern automated factories require uninterrupted, flat-line 24/7 power with strict IEEE-519 harmonic compliance.

2. Hyperscale Data Centers & AI Compute (+50 GW by 2030; ~75 GW by 2035): CEA and CRISIL models project over 50 GW of dedicated data center load coming online by 2030 across Mumbai, Chennai, Hyderabad, and NCR—demanding 99.999% uptime and massive continuous cooling loads.

3. Green Hydrogen Electrolyzers (+50 to 60 GW by 2030–35): To hit the National Green Hydrogen Mission target of 5 MMTPA, electrolyzer banks will draw 50–60 GW of dedicated load, adding over 125 BU of electricity demand that must be matched with round-the-clock power.  

4. EV Fleet Electrification & Space Cooling (+80–100 TWh by 2030): Rapid electrification of commercial logistics fleets, public transit buses, and residential air-conditioning (adding the urban population equivalent of Australia every 24 months) is creating steep, uncoordinated evening demand spikes between 6:00 PM and 11:00 PM.

• New Power Plant Plans: The Central Electricity Authority (CEA) projects electricity demand to increase 1.8 times between 2021-22 and 2031-32. India targets adding 472 GW of capacity by 2032. ¹

• Renewable Investments: Almost 80% of this new capacity is slated to come from solar (279 GW) and wind (94 GW). As of 2026, installed solar capacity stands at 162 GW out of a total 548 GW. ²

Power Supply is Catching Pace, but Distribution is the Bottleneck

Generation targets are being met, but the grid infrastructure connecting that power to C&I hubs is buckling under the pressure of intermittent supply and skyrocketing peaks.

Power Demand vs. Generation: In September 2026, daily peak electricity demand spiked 45 to 50 GW higher than the previous year. Coal generation was forced up 13.3% to compensate for a 20% drop in hydropower. ³

Grid Instability Data: In Q1 2026, India lost 500 GWh of renewable electricity to curtailment. Recent data shows 68 major renewable grid disturbances, resulting in generation losses of up to 7 GW.  

The Gap and Closure Methods: The primary bottleneck is intra-state evacuation networks. Closing this gap requires shifting focus to grid-scale flexibility, advanced forecasting, and integrating battery storage.

Now this manifolds higher level of power generation will need to be transported to C&I users. This will need significant grid investment. To prevent grid lock, the CEA National Electricity Plan (Transmission) and CRISIL outline an urgent infrastructure overhaul. This will require investments across transmission, transformation, transfer and last mile distribution.  

• Transmission network for 220kV+ will need to move from ~4.85 lakh km to over 7.3 lakh km needing an investment of ₹9 lakh crore by 2035

• Substations Transformation Capacity will need to double from 1250 GVA to 2850 GVA  

• Inter-Regional Transfer and Last Mile Distribution also need to double in this decade

This means that storage is necessary for smoothening out the power generation and demand peaks, and the CEA Generation Adequacy Plan recommend s BESS capacity to go up from 5GW to 175GW in the coming 10 years.

Legacy Power Backup Methods Don’t fill the Distribution gap  

For decades, C&I facilities relied on diesel generators (DG) to bridge grid gaps. Today, that approach is financially and operationally unsustainable as the cost has gone up and is impacted n by multiple global situations – like the crisis in the Strait of Hormuz and Ukraine. Also, technically the delay of a few seconds in the switch over is very costly for process engineering and AI Data Centre’s as we saw with the opening example.  

• Diesel Economics: Running a diesel generator now costs roughly ₹25 to ₹34 per kWh. In contrast, charging a battery off-peak from the grid costs only ₹7 to ₹8 per kWh. ⁴

• Poor Quality of Power Switching: Modern automation cannot tolerate the 10 to 30-second switchover times typical of diesel. These interruptions reset PLCs, costing manufacturers up to 1% of annual turnover.

• Incompatibility with Renewables: Diesel generators cannot efficiently absorb or balance the intermittent spikes of a rooftop solar installation. They are binary assets designed for baseload emergency power.

Intelligent Storage and Energy Management Systems are Urgently Needed  

Commercial and Industrial users  want to drive energy independence and that is possible since energy generation is a nearly solved problem. Now all that is needed is energy storage. A Battery Energy Storage System (BESS) can easily help them move from a fossil fuel based near “100% emergency backup" to a sustainable uninterrupted power supply infrastructure.

Unlike traditional DG sets or basic inverters, an intelligent Battery Energy Storage System (BESS) actively manages facility power dynamics:

• Diesel Replacement & Silent Backup: BESS provides zero-emission, silent power with sub-10ms switching that is completely invisible to sensitive industrial machinery.

• Peak Shaving: By discharging during high-tariff periods or when the facility hits maximum kVA spikes, BESS eliminates monthly penalty surcharges from state electricity boards.  

• Renewable Integration: Storage smooths out solar generation. It stores excess midday power for use during evening peak hours, stabilizing supply without relying on the grid.

The real question is the Capital Expenditure required to setup this BESS infrastructure. So we have an indicative cost for a 2-Hour System — 400 kW / 800 kWh designed primarily for outage bridging and Time-of-Day (ToD) peak tariff shaving. The per-kWh cost is approximately  ~₹25=30,000/kWh leading to a total CapEX of ~ ₹2-3 crore. Here is the indicative breakup:

The BESS Investment Pays-Off in a Few Years, and Drives Profitability

Replacing DG runtime with grid- or solar-charged battery storage yields a 70% to 77% reduction in backup energy costs. For a benchmark 500 kVA generator running 40 hours a month, switching to BESS saves an estimated ₹18 to ₹25 lakh annually on energy alone. Capital payback is typically achieved in just 2.5 to 3 years, transforming backup power from a sunk operational expense into a profit-generating asset over its 10-to-15-year lifecycle.  

Explore the financial impact of replacing diesel generation with BESS for your facility using the interactive calculator below:

As India grows across sectors, AI Data Centers spawn and Electric Vehicles take the centre stage, Energy Demand will sky-rocket. Power generation is planning to catch up, but distribution will remain a key challenge. The solution for C&I operators is to invest in Battery Energy Storage Systems and to build a source of high-quality continuous  power supply that creates much high long-term profitability by sourcing the power from renewable and efficient grid timing to create a supply that is both continuous and well-priced. With his investment operators can get better operational consistency and much higher profitability driven by better power economics.