{"query_echo":{"q":"","filters":{"analysis_type":["operational modelling"]},"warnings":[{"code":"facet_value_not_in_vocabulary","message":"Value 'operational modelling' for facet 'analysis_type' is not in the controlled vocabulary."}]},"total":{"value":2,"relation":"eq"},"page":1,"page_size":20,"self":"https://climateinsightsdirectory.org/api/v1/search?analysis_type=operational+modelling","stability":"beta","ai_marking":{"digital_source_type":{"uri":"http://cv.iptc.org/newscodes/digitalsourcetype/trainedAlgorithmicMedia","name":"Created using Generative AI"},"notice":"Summary and key insights are generated using artificial intelligence."},"results":[{"id":"ember-000064","url":"https://climateinsightsdirectory.org/document/ember-000064","title":"Coal fleet’s changing role in the power system","publisher":{"name":"Ember","organization":"ember"},"document_type":"report","language":"en","date_published":"2025-10-29","source_url":"https://ember-energy.org/chapter/coal-fleets-changing-role-in-the-power-system/","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","analysis_type"],"summary":{"text":"India's coal fleet is shifting from baseload to flexible balancing to integrate rising solar and wind energy. By FY 2031–32, coal plants will need to operate closer to their technical minimums, with a projected average plant load factor (PLF) drop from 69% to 55%. This transition will disproportionately impact high-cost, less efficient units, suggesting that the 35 GW of coal capacity currently under construction is sufficient for supply security without further additions.","ai_generated":true,"unit":"ember-000064#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"The role of coal generation is shifting from steady baseload to flexible balancing resources, requiring deeper mid-day turndowns and faster evening ramp-ups to accommodate variable renewable energy.","ai_generated":true,"unit":"ember-000064#insight-1","date_modified":"2026-10-23"},{"text":"The 2023 Grid Code formalises the Minimum Thermal Load (MTL)—the lowest reliable output level—at 55% of rated capacity, with ramping expectations of approximately 1% of rated capacity per minute.","ai_generated":true,"unit":"ember-000064#insight-2","date_modified":"2026-10-23"},{"text":"Modelling for FY 2031–32 indicates a significant daily swing in coal output, peaking at approximately 190 GW during non-solar hours and ramping down to roughly 112 GW at midday solar peaks.","ai_generated":true,"unit":"ember-000064#insight-3","date_modified":"2026-10-23"},{"text":"To avoid solar curtailment and expensive gas-based generation, many plants may need to operate at an effective MTL of around 40%, which is lower than the current 55% standard.","ai_generated":true,"unit":"ember-000064#insight-4","date_modified":"2026-10-23"},{"text":"Flexibility burdens currently fall disproportionately on a few Inter-State Generating Station (ISGS) plants, while intra-state generators remain largely unresponsive to flexibility needs.","ai_generated":true,"unit":"ember-000064#insight-5","date_modified":"2026-10-23"},{"text":"Average plant load factors (PLF) for the coal fleet are projected to decline from approximately 69% in FY 2024–25 to 55% by FY 2031–32.","ai_generated":true,"unit":"ember-000064#insight-6","date_modified":"2026-10-23"},{"text":"The reduction in utilisation will be non-uniform, with plants having variable costs higher than roughly INR 2.8/kWh seeing significant reductions in run hours.","ai_generated":true,"unit":"ember-000064#insight-7","date_modified":"2026-10-23"},{"text":"India does not require new coal capacity beyond the 35 GW currently under construction to maintain supply-side security through FY 2031–32.","ai_generated":true,"unit":"ember-000064#insight-8","date_modified":"2026-10-23"}],"climate_tags":["coal-fired power station","solar energy","wind energy","grid flexibility","energy transition"],"geography_discussed":[],"frame_perspective":[],"analysis_type":["operational modelling","policy assessment","technical analysis"]},{"id":"ember-000231","url":"https://climateinsightsdirectory.org/document/ember-000231","title":"Coal’s diminishing role in India’s electricity transition","publisher":{"name":"Ember","organization":"ember"},"document_type":"report","language":"en","date_published":"2025-10-29","source_url":"https://ember-energy.org/app/uploads/2025/10/Coals-diminishing-role-in-Indias-electricity-transition.pdf","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"The report argues that as India expands solar and wind capacity, coal's role will shift from baseload provider to a flexible balancing resource, leading to lower plant load factors (PLFs) and higher effective costs. By FY 2031-32, coal-based electricity is projected to be roughly 25% costlier than in FY 2024-25. The analysis suggests that the ~35 GW of coal capacity currently under construction is sufficient for reliability, making further coal expansion uneconomical compared to firm and dispatchable renewable energy (FDRE) and storage options.","ai_generated":true,"unit":"ember-000231#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"India is generally on track to meet its NEP-2032 capacity targets for solar, coal, and hydro, though wind capacity additions must accelerate and nuclear is likely to fall short of its target.","ai_generated":true,"unit":"ember-000231#insight-1","date_modified":"2026-10-23"},{"text":"Coal's operational role is shifting from baseload to flexible balancing, which will significantly reduce its average Plant Load Factor (PLF) from approximately 69% in FY 2024-25 to 55% by FY 2031-32.","ai_generated":true,"unit":"ember-000231#insight-2","date_modified":"2026-10-23"},{"text":"The effective cost of coal-based electricity is projected to rise by roughly 25% by FY 2031-32, driven primarily by underutilisation (spreading fixed costs over fewer units) and increased operational expenses from part-load inefficiencies.","ai_generated":true,"unit":"ember-000231#insight-3","date_modified":"2026-10-23"},{"text":"New coal capacity beyond the ~35 GW already under construction is unnecessary and uneconomical, as approximately 10% of additional units would be entirely unutilised by FY 2031-32.","ai_generated":true,"unit":"ember-000231#insight-4","date_modified":"2026-10-23"},{"text":"Firm and Dispatchable Renewable Energy (FDRE) and solar-plus-storage are now more cost-competitive than new coal plants, with FDRE tariffs between INR 4.3–5.8/kWh and solar-plus-storage at INR 2.9–3.6/kWh, compared to new coal tariffs nearing INR 6/kWh.","ai_generated":true,"unit":"ember-000231#insight-5","date_modified":"2026-10-23"},{"text":"To integrate higher levels of renewables, India should prioritize expanding battery energy storage systems (BESS) and pumped hydro storage (PHS), and consider mandating a statutory minimum technical load (MTL) of 40% for coal plants to increase flexibility.","ai_generated":true,"unit":"ember-000231#insight-6","date_modified":"2026-10-23"}],"climate_tags":["coal-fired power station","solar energy","hydropower","nuclear power","battery energy storage system","energy transition"],"geography_discussed":["Bihar","Madhya Pradesh"],"frame_perspective":[],"analysis_type":["operational modelling","cost analysis","policy assessment"]}]}