Delhi — Energy Transition Snapshot
Generated 1 May 2026Carbon intensity (recent ~48h)
Generation mix (latest)
Peak deficit history (%)
Overview
Delhi (Union Territory, IEX Northern Region) is a high-density urban load pocket with no meaningful indigenous generation base, drawing almost entirely from the Northern Regional grid via inter-state transmission. As of 02:00 UTC on 1 May 2026, instantaneous demand stood at 4,743 MW against a recorded RE share of 0.0% in that hourly slice—underscoring the territory's near-total dependence on coal-heavy pooled grid power. The average carbon intensity over the recent ~48h window was 784.1 gCO2/kWh, one of the higher readings consistent with a thermally dominated supply stack. Peak deficit at the p95 level (POSOCO PSP, as of 23 April 2026) registered 0.0%, indicating no material peak-hour shortage in the observed daily series. The open-access charge stack for HT consumers sits at INR 0.98/kWh (as of April 2025). Key structural data—AT&C losses, RPO compliance, residential tariff, and long-term demand growth—remain unavailable pending Atlas endpoint integration.
Demand & Supply
Live SLDC feed places Delhi's demand at 4,743 MW as of 02:15 UTC on 1 May 2026. This is a nighttime-shoulder reading; peak-day demand in summer months typically runs materially higher, though multi-year CAGR data is not yet integrated and no quantified growth rate can be cited here. The fuel-mix timeseries shows RE share at 0.0% in the latest hourly slice—reflecting either a period when Delhi's contracted RE capacity (rooftop solar, small hydro allocations) was generating nothing or was not being separately metered in the feed. Over the recent ~48h window (29 April 03:00 UTC to 1 May 02:00 UTC), RE share moved by −13.8 percentage points, indicating that RE was supplying a non-trivial share at the start of the window (consistent with daytime solar) before falling to zero by the window's close. The residual supply therefore comes from thermally scheduled interstate purchases and central sector allocations. Peak deficit at the p95 percentile across the 23-day POSOCO PSP series stands at 0.0%, meaning Delhi cleared its peak demand without recorded shortage in that period. No transmission ATC data is available (IEA-56 pending), so import headroom cannot be quantified.
RE & Transition
Delhi's instantaneous RE share is 0.0% at the latest reading (02:00 UTC, 1 May 2026), but the recent ~48h window delta of −13.8 percentage points confirms that RE was contributing meaningfully—at least 13.8 pp above zero—at some point within that window, consistent with rooftop solar output during daylight hours. This is a recent window delta, not a directional multi-year trend; no long-term aggregator is integrated, so sustained trajectory cannot be assessed. Average carbon intensity over the ~48h window is 784.1 gCO2/kWh, placing Delhi's effective supply mix firmly in the high-carbon band by any international benchmark. This is structurally explained by the territory's reliance on coal-heavy Northern Regional pool power for baseload and evening-peak hours. RPO compliance data is not yet integrated (IEA-58), so whether Delhi is meeting its statutory renewable purchase obligation cannot be determined from available data. Similarly, the absence of a multi-year demand CAGR figure prevents any assessment of whether RE capacity additions are keeping pace with load growth. The combination of high carbon intensity and zero nighttime RE share signals that transition progress, while visible intraday, does not yet alter the territory's carbon posture at the grid level.
DISCOM Health
The open-access charge stack for HT voltage consumers in Delhi totals INR 0.98/kWh (as of April 2025), covering cross-subsidy surcharge, wheeling, transmission, and loss components. This is among the inputs a large commercial or industrial consumer would weigh against exchange or captive alternatives; at this level, OA sourcing carries a non-trivial levy burden relative to several peer states. Peak deficit p95 at 0.0% (POSOCO PSP, 23-day series through 23 April 2026) suggests Delhi's DISCOMs—BSES Rajdhani, BSES Yamuna, and TPDDL—secured adequate contracted and spot supply during that period, with no peak shortfall recorded at the 95th percentile. However, critical structural health indicators are unavailable: AT&C loss rate (UDAY endpoint, IEA-57 pending), residential tariff levels (Atlas X-API-Key not provisioned), and IEX DAM prices (feed currently empty) are all data gaps. Without AT&C loss data, the efficiency of Delhi's distribution network—historically a relative outperformer in the national context—cannot be quantified from this system.
Outlook
Over a 1–3 year horizon, Delhi's energy posture presents a mixed picture. The 0.0% nighttime RE share and 784.1 gCO2/kWh carbon intensity confirm that structural decarbonisation of the supply stack remains contingent on Northern Regional grid greening and expansion of behind-the-meter solar—neither of which Delhi controls directly. The 0.0% peak deficit p95 is a near-term positive for reliability, but the absence of transmission ATC data (IEA-56) means import margin cannot be verified. The INR 0.98/kWh OA charge stack constrains the economics of private RE sourcing for HT consumers; any reduction in cross-subsidy surcharge or wheeling charges would materially shift the OA vs. exchange cost calculus. The −13.8 pp recent window delta in RE share illustrates the intermittency exposure that Delhi's grid faces without storage or flexible procurement mechanisms. Closing the data gaps on AT&C losses (IEA-57), RPO compliance (IEA-58), and residential tariffs is a prerequisite for any rigorous assessment of DISCOM financial trajectory or subsidy rationalisation needs.
Data gaps in this brief
- Transmission ATC: Atlas endpoint not yet integrated (see IEA-56).
- DISCOM AT&C losses (UDAY): Atlas endpoint not yet integrated (see IEA-57).
- RPO compliance: state RE policy dataset not yet integrated (see IEA-58).
- Subsidies / incentives: state catalogue not yet integrated (see IEA-59).
- Residential tariff: Atlas tariff endpoint requires X-API-Key not yet provisioned for tools-api.
- Multi-year demand CAGR: Atlas does not yet expose a long-term aggregator (only ~48h realtime).
- IEX DAM price: upstream IEX area-prices feed currently empty.
- Transmission ATC: Atlas endpoint not yet integrated (IEA-56).
- DISCOM AT&C losses (UDAY): Atlas endpoint not yet integrated (IEA-57).
- RPO compliance: state RE policy dataset not yet integrated (IEA-58).
- Subsidies / incentives: state catalogue not yet integrated (IEA-59).