{"id":"spp","rid":"SPP","name":"SPP (Southwest Power Pool)","flag":"🇺🇸","group":"us","type":"market","parent":null,"regions":null,"tier_range":null,"tier":2,"tier_name":"Strong","score":63,"pillar_score":69,"pillar_tier":2,"pillar_tier_name":"Strong","reliability":{"assessed":true,"level":"elevated","dock":6,"provisional":false,"confidence":"Med-High","delivery_transmission":{"level":"elevated","measure":"event-based","note":"Ordered rolling blackouts during Winter Storm Uri (Feb 2021), its first-ever region-wide firm load shed, when extreme cold knocked out generation.","sources":[{"label":"FERC/NERC Feb 2021 cold weather final report","url":"https://www.ferc.gov/news-events/news/final-report-february-2021-freeze-underscores-winterization-recommendations"}]},"delivery_distribution":{"level":"none"},"forward_capacity":{"level":"watch","measure":"assessed","note":"NERC's 2024 assessment rates SPP elevated-risk as demand grows against a changing resource mix.","sources":[{"label":"NERC 2024 Long-Term Reliability Assessment","url":"https://www.nerc.com/globalassets/our-work/assessments/2024-ltra_corrected_july_2025.pdf"}]},"read":"Reliability flags found","level_means":"reviewed; flags found"},"reliability_dock":6,"regulatory_momentum":{"level":"mixed","direction":"improving","why":"FERC's 18 June 2026 Section 206 show-cause order directs SPP to justify or reform its large-load rules; SPP's relatively uncongested, low-cost footprint and active courting of new load make it one of the more open US responses.","what_would_change_it":"SPP's Section 206 filing locking in a fast, transparent large-load connection pathway before demand outpaces the grid.","scope":"The regulatory and permitting environment for connecting a new large load. An opinion on a dated record, not a measurement.","vocabulary_version":"regulatory-momentum-1.0"},"scheduled_changes":null,"queue":{"active_gw":171,"wait_months":null,"has_detail":true,"wait_band":"4-5 years"},"friction":null,"connection_pathway":null,"service_evidence":{"contractual_service_held":false,"local_capacity_state":"not_assessed","local_capacity_depth":0,"cost_basis":"triangulated","territory_count":20},"reliability_metrics":{"saidi_min":104.32,"saidi_year":"2024","forward_adequacy":null,"measure":"historical utility-territory delivery performance","standard":"MIXED","standard_note":"mixed methods: IEEE 82%; respondent-defined 18% of customers. Major event days are excluded throughout; the methods differ only in how those days are identified, a smaller difference than the spread between the utilities themselves. Constituents below carry their own standard.","evidence_role":"market_context","by_serving_utility":[{"customers":833706,"saidi_minutes":98.42,"standard":"OTHER_STANDARD","state":"OK","utility":"Oklahoma Gas & Electric Co","utility_id":14063,"weight":0.1789},{"customers":579031,"saidi_minutes":116.7,"standard":"IEEE_STANDARD","state":"OK","utility":"Public Service Co of Oklahoma","utility_id":15474,"weight":0.1243},{"customers":403157,"saidi_minutes":85.7,"standard":"IEEE_STANDARD","state":"NE","utility":"Omaha Public Power District","utility_id":14127,"weight":0.0865},{"customers":392397,"saidi_minutes":101.58,"standard":"IEEE_STANDARD","state":"KS","utility":"Evergy Kansas Central, Inc","utility_id":22500,"weight":0.0842},{"customers":346863,"saidi_minutes":118.82,"standard":"IEEE_STANDARD","state":"MO","utility":"Evergy Missouri West","utility_id":12698,"weight":0.0744},{"customers":344853,"saidi_minutes":87.12,"standard":"IEEE_STANDARD","state":"KS","utility":"Evergy Kansas South, Inc","utility_id":10005,"weight":0.074},{"customers":311001,"saidi_minutes":103.93,"standard":"IEEE_STANDARD","state":"MO","utility":"Evergy Metro","utility_id":10000,"weight":0.0667},{"customers":285403,"saidi_minutes":61.15,"standard":"IEEE_STANDARD","state":"KS","utility":"Evergy Metro","utility_id":10000,"weight":0.0613},{"customers":268277,"saidi_minutes":116.21,"standard":"IEEE_STANDARD","state":"TX","utility":"Southwestern Public Service Co","utility_id":17718,"weight":0.0576},{"customers":192067,"saidi_minutes":234.8,"standard":"IEEE_STANDARD","state":"TX","utility":"Southwestern Electric Power Co","utility_id":17698,"weight":0.0412},{"customers":166833,"saidi_minutes":141.48,"standard":"IEEE_STANDARD","state":"MO","utility":"Empire District Electric Co","utility_id":5860,"weight":0.0358},{"customers":151839,"saidi_minutes":19.3,"standard":"IEEE_STANDARD","state":"NE","utility":"Lincoln Electric System","utility_id":11018,"weight":0.0326},{"customers":121822,"saidi_minutes":65.33,"standard":"IEEE_STANDARD","state":"MO","utility":"City Utilities of Springfield - (MO)","utility_id":17833,"weight":0.0261},{"customers":118975,"saidi_minutes":135.46,"standard":"IEEE_STANDARD","state":"NM","utility":"Southwestern Public Service Co","utility_id":17718,"weight":0.0255},{"customers":93975,"saidi_minutes":74.35,"standard":"IEEE_STANDARD","state":"NE","utility":"Nebraska Public Power District","utility_id":13337,"weight":0.0202},{"customers":19103,"saidi_minutes":146.81,"standard":"IEEE_STANDARD","state":"ND","utility":"Mountrail-Williams Elec Coop","utility_id":20413,"weight":0.0041},{"customers":13546,"saidi_minutes":209.74,"standard":"IEEE_STANDARD","state":"ND","utility":"McKenzie Electric Coop Inc","utility_id":12087,"weight":0.0029},{"customers":10232,"saidi_minutes":89.51,"standard":"IEEE_STANDARD","state":"KS","utility":"Empire District Electric Co","utility_id":5860,"weight":0.0022},{"customers":5928,"saidi_minutes":88.35,"standard":"IEEE_STANDARD","state":"OK","utility":"Empire District Electric Co","utility_id":5860,"weight":0.0013},{"customers":213,"saidi_minutes":29.92,"standard":"OTHER_STANDARD","state":"OK","utility":"Grand River Dam Authority","utility_id":7490,"weight":0}],"evidence_role_basis":"comparison and monitoring only: a customer-weighted regional blend is not the record of the utility that would serve a specific site"},"forward_cost":null,"tariff":null,"realized_cost":{"low_usd_per_mwh":42,"mid_usd_per_mwh":54,"high_usd_per_mwh":68,"aggregation":"band","estimate_usd_per_mwh":null,"estimate_kind_note":null,"total_derivation":"compiled_band_allocated_across_categories","total_derivation_note":"The band is the compiled result and the component lines apportion its midpoint, which is why they sum exactly.","tariff_basis":null,"scenarios":null,"confidence":"triangulated","public_fragments":2,"contributed_points":0,"basis":"USD per MWh recurring, delivered to the standard 100 MW high-load-factor case, excluding customer-funded connection capital and excluding refundable taxes","cost_components":[{"name":"Wholesale energy","usd_per_mwh":30,"source":null,"provenance":{"provenance_state":"estimated_allocation","provenance_state_label":"Estimated allocation","provenance_state_means":"Apportioned from a compiled total or midpoint by analyst judgement. Not independently calculated, and not corroborated by anything outside the band it came from.","derivation":"allocation_of_compiled_midpoint","derivation_note":"This line apportions the compiled midpoint. Its value was not separately observed.","source_of_band_not_line":"SPP 2024 State of the Market","source_url_of_band_not_line":"https://www.spp.org/documents/73953/2024_annual_state_of_the_market_report.pdf","band_as_of":"2026","customer_applicability":"100 MW contracted demand, 95% load factor, HV service","band_confidence":"triangulated","as_of":"2026","method":"analyst apportionment of the compiled midpoint across categories","confidence":"allocation","confidence_note":"Apportioned from the compiled delivered-cost midpoint by analyst judgement. Not separately observed.","covers_categories":["energy"],"corroborated_by":null,"state_vocabulary_version":"provenance-state-1.0","what_would_upgrade_it":"A separately sourced figure for this category with its own date, method and confidence. Until then the band's provenance establishes the total only, not this line.","version":"line-provenance-1.1"},"evidence":"estimated_allocation"},{"name":"Transmission & delivery","usd_per_mwh":20,"source":null,"provenance":{"provenance_state":"estimated_allocation","provenance_state_label":"Estimated allocation","provenance_state_means":"Apportioned from a compiled total or midpoint by analyst judgement. Not independently calculated, and not corroborated by anything outside the band it came from.","derivation":"allocation_of_compiled_midpoint","derivation_note":"This line apportions the compiled midpoint. Its value was not separately observed.","source_of_band_not_line":"SPP 2024 State of the Market","source_url_of_band_not_line":"https://www.spp.org/documents/73953/2024_annual_state_of_the_market_report.pdf","band_as_of":"2026","customer_applicability":"100 MW contracted demand, 95% load factor, HV service","band_confidence":"triangulated","as_of":"2026","method":"analyst apportionment of the compiled midpoint across categories, covering transmission, distribution, demand_charges in one line","confidence":"bundled_allocation","confidence_note":"Apportioned, and covering more than one cost category in a single line. Neither the total nor the split within it was separately observed.","covers_categories":["transmission","distribution","demand_charges"],"corroborated_by":null,"state_vocabulary_version":"provenance-state-1.0","what_would_upgrade_it":"A separately sourced figure for this category with its own date, method and confidence. 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Its value was not separately observed.","source_of_band_not_line":"SPP 2024 State of the Market","source_url_of_band_not_line":"https://www.spp.org/documents/73953/2024_annual_state_of_the_market_report.pdf","band_as_of":"2026","customer_applicability":"100 MW contracted demand, 95% load factor, HV service","band_confidence":"triangulated","as_of":"2026","method":"analyst apportionment of the compiled midpoint across categories","confidence":"allocation","confidence_note":"Apportioned from the compiled delivered-cost midpoint by analyst judgement. Not separately observed.","covers_categories":["ancillary"],"corroborated_by":null,"state_vocabulary_version":"provenance-state-1.0","what_would_upgrade_it":"A separately sourced figure for this category with its own date, method and confidence. Until then the band's provenance establishes the total only, not this line.","version":"line-provenance-1.1"},"evidence":"estimated_allocation"}],"component_status":{"arithmetic_integrity":true,"evidence_reconciliation":"not_independently_reconciled","independently_sourced_lines":0,"total_lines":3,"bundled":[{"name":"Transmission & delivery","combines":["transmission","distribution","demand-related network charges"],"note":"Reported as one line. These elements have not been independently sourced or separately reconciled."}],"text":"The delivered-cost band is the compiled result. The component lines are an estimated allocation of its midpoint, not separately observed figures.","provenance_summary":{"by_state":{"estimated_allocation":3},"usd_by_state":{"estimated_allocation":54},"evidenced_share_pct":0,"lines_awaiting_evidence":["Wholesale energy","Transmission & delivery","Ancillary & other"],"what_would_close_them":"A separately sourced or tariff-derived figure for each category, with its own date, method and confidence. Until then the band's provenance establishes the total only, not these lines.","version":"provenance-state-1.0"},"category_coverage":{"energy":{"status":"estimated","line":"Wholesale energy","missing_evidence":"An independently sourced wholesale or tariff energy figure with its own date, method and confidence."},"capacity":{"status":"not_applicable","reason":"Energy-only market: no capacity construct to price."},"transmission":{"status":"bundled","line":"Transmission & delivery","combined_with":["distribution","demand_charges"],"line_is_sourced":false,"line_provenance_state":"estimated_allocation","source":null,"source_url":null,"effective":null,"formula":null,"missing_evidence":"A separate transmission figure, or a sourced apportionment of the Transmission & delivery line."},"distribution":{"status":"bundled","line":"Transmission & delivery","combined_with":["transmission","demand_charges"],"line_is_sourced":false,"line_provenance_state":"estimated_allocation","source":null,"source_url":null,"effective":null,"formula":null,"missing_evidence":"A separate distribution figure, or a sourced apportionment of the Transmission & delivery line."},"demand_charges":{"status":"bundled","line":"Transmission & delivery","combined_with":["transmission","distribution"],"line_is_sourced":false,"line_provenance_state":"estimated_allocation","source":null,"source_url":null,"effective":null,"formula":null,"missing_evidence":"A separate demand charges figure, or a sourced apportionment of the Transmission & delivery line."},"ancillary":{"status":"estimated","line":"Ancillary & other","missing_evidence":"An independently sourced ancillary services and uplift figure with its own date, method and confidence."},"riders":{"status":"unavailable","missing_evidence":"No riders and unavoidable regulatory charges figure is held for this market."},"carbon":{"status":"unavailable","missing_evidence":"No carbon-related charges figure is held for this market."},"taxes":{"status":"unavailable","missing_evidence":"No recurring taxes figure is held for this market."},"connection_capital":{"status":"not_applicable","reason":"Outside the recurring $/MWh boundary by definition."}},"category_vocabulary_version":"cost-categories-1.0","capacity_cross_check":null,"method_version":"cost-components-1.0"},"component_source":["SPP 2024 State of the Market","https://www.spp.org/documents/73953/2024_annual_state_of_the_market_report.pdf"]},"cost_availability":{"label":"Standardized cost observable","means":"A comparable recurring-cost band can be built from observable, applicable inputs for the standard archetype.","user_action":"Use the band, with its stated confidence and boundary.","class":"standardized_observable","band_published":true},"cost_evidence_state":{"state":"applicable_evidence_incomplete","answerable":"conditionally","label":"Applicable, evidence incomplete","means":"The archetype can buy the service and the band is sound, but some published figures do not yet carry their own source, date, method and confidence.","remedy":"Finish the per-line provenance. No new access or negotiation is required.","also_holds":[],"vocabulary_version":"evidence-state-1.0"},"jurisdiction_evidence":null,"cost_structure":null,"cost_withdrawn":null,"cost_correction":null,"carbon_correction":null,"carbon_official_reference":null,"partial_cost_verified":null,"cost_pillar_calculation":null,"evidence":{"source_reliability":"High","coverage":"Full","coverage_dimensions":3,"last_reviewed":"June 2026","measured_layers":2,"data_layers":3,"layers":[{"layer":"PGIQ Rating opinion","method":"opinion","vintage":"June 2026","freshness":"Current","source_url":"https://powergridiq.com/methodology"},{"layer":"Reliability","method":"measured","vintage":"2024","freshness":"Fresh","source_url":"https://www.eia.gov/electricity/data/eia861/"},{"layer":"Interconnection queue","method":"measured","vintage":"end-2025 (LBNL 2026)","freshness":"Fresh","source_url":"https://emp.lbl.gov/queues"},{"layer":"Realized cost","method":"triangulated","vintage":"2026","freshness":"Fresh","source_url":"https://www.spp.org/documents/73953/2024_annual_state_of_the_market_report.pdf"}]},"outlook":"Positive","confidence":"Med","under_review":false,"thesis":"Cheap, wind-rich, and genuinely open, with room to build. It ranks below the biggest US hubs mainly because less large-load demand has shown up here yet. An underrated emerging destination.","pillars":{"access":65,"availability":65,"cost":90,"momentum":50,"carbon":58},"pillar_rationale":{"access":"Open, connect-and-manage-leaning access with an ERAS fast-track.","availability":"Good availability on a strong wind base with room to grow.","cost":"Among the cheapest US power.","momentum":"Moderate momentum: emerging (Oklahoma, Kansas).","carbon":"Carbon moderate (~290 g), wind-heavy but still some fossil."},"offtake_opportunity_index":71,"demand_hunger":35,"build_feasibility":71,"supplier_signals":{"bess_arbitrage_usd_mwh":17,"bess_arbitrage_pct":62,"solar_capture_pct":101,"wind_capture_pct":100,"effective_competing_supply_gw":42.8},"outlook_drivers":{"upgrade":["Big AI/data-center announcements convert to operating load.","Transmission build unlocks more wind."],"downgrade":["Thin ecosystem keeps tenants on the coasts.","Wind variability without enough firming."]},"risks":["Revealed-demand maturity.","Wind-balancing and firming."],"peers":{"like":"MISO (cheap, building)","ahead":"on cost","behind":"ERCOT on ecosystem"},"sources":[{"label":"MISO/SPP ERAS fast-track","url":"https://dwgp.com/firm-announcements/miso-and-spp-move-forward-with-fast-track-interconnection-study-processes"}],"latest_action":{"date":"Jun 2026","type":"Affirmed","note":"Named in the FERC show-cause suite; preliminary stage, tier holds, monitoring.","trigger":"FERC Section 206 show-cause order (18 Jun 2026)"},"grid":{"price_usd_mwh":28,"carbon_intensity_g":290,"renewable_pct":48,"renewable_generation_share_pct":48,"low_carbon_generation_share_pct":55,"fuel_mix":{"wind":44,"gas":28,"coal":17,"nuclear":7,"solar":4},"demand_mw":28000,"capacity_mw":72000,"imports_mw":500,"exports_mw":1000,"firm_capacity_mw":null,"firm_capacity_availability":"insufficient_evidence","firm_capacity_basis":null,"est_peak_mw":42000,"firm_headroom_mw":null,"firm_headroom_availability":"dependency_unavailable","peak_stress_pct":null,"peak_stress_availability":"dependency_unavailable","adequacy_required_input":"capacity_mix_mw with a declared basis, or an official dependable or accredited capacity from the operator","price_cycle":"other","price_basis":"not_reviewed","price_absent_reason":null,"price_source":"modelled-baseline","price_as_of":null,"price_vintage":"undated_modelled_baseline","price_is_live":false,"carbon_intensity_unit":"gCO2eq/kWh","carbon_measurement_boundary":"operational_combustion","carbon_calculation_method":"structural_estimate","carbon_emission_factor_source":null,"carbon_basis_withdrawn":true,"carbon_imports_treatment":"not_accounted","carbon_provenance_state":"structural","carbon_decision_eligibility":"insufficient_evidence","carbon_confidence":"low","source":"modelled-baseline"},"evidence_depth":{"use_case":"project_case","use_case_label":"Standardized Project Case","overall":"M2 Compiled","overall_permits":"Compiled from cited sources: supports investor and institutional analysis.","insufficient_evidence":false,"unassessed_required_fields":[],"project_ready":false,"blocking_fields":["connection","reliability"],"fields":{"cost":"M3 Project-ready","connection":"M2 Compiled","reliability":"M2 Compiled","carbon":"M2 Compiled","regulatory":"M2 Compiled","local_capacity":"not_assessed"},"by_use_case":{"discovery":{"label":"Discovery and monitoring","matrix_version":"1.0","tier":"M2 Compiled","ready":false,"blocking_fields":["connection"],"insufficient_evidence":false,"why":""},"market_comparison":{"label":"Market comparison","matrix_version":"1.0","tier":"M2 Compiled","ready":false,"blocking_fields":["connection","reliability"],"insufficient_evidence":false,"why":""},"project_case":{"label":"Standardized Project Case","matrix_version":"1.0","tier":"M2 Compiled","ready":false,"blocking_fields":["connection","reliability"],"insufficient_evidence":false,"why":""},"project_case_carbon":{"label":"Project Case with a carbon requirement","matrix_version":"1.0","tier":"M2 Compiled","ready":false,"blocking_fields":["connection","reliability","carbon"],"insufficient_evidence":false,"why":""},"site_diligence":{"label":"Conditional site diligence","matrix_version":"1.0","tier":"not_assessed","ready":false,"blocking_fields":["connection","reliability","local_capacity"],"insufficient_evidence":true,"why":"not assessed here: local capacity"}},"reliability_layers":{"bulk_historical":{"state":"held","method":"event-based"},"forward_adequacy":{"state":"held","method":"assessed"},"local_delivery":{"state":"held","method":"measured"},"contractual_service":{"state":"unknown","method":null},"designed_site_resilience":{"state":"unknown","method":null}},"definition_version":"carbon_scope@1.0;connection_process@1.0;cost_archetype@1.0;evidence_tiers@1.0;reliability_layers@1.0","scale":"M1 broad / M2 compiled / M3 project-ready / M4 local; cumulative, so each tier includes the ones below it. Assigned per field from held evidence with provenance. Not a rating strength, confidence score or feasibility conclusion."},"next_review":"2027-08-15","report_url":"https://powergridiq.com/rating/spp","as_of":"June 2026","evidence_layers":{"version":"evidence-layers-1.0","band":{"state":"independently_compiled","label":"Independently compiled","means":"The band is assembled from multiple sourced, dated and applicable published figures. It is not a single benchmark and it is not a tariff reconstruction.","reproducible":"partially"},"component":{"total_lines":3,"reproducible_lines":0,"states":["estimated_allocation"],"all_lines_are_estimated_allocations":true,"independently_reproducible":false,"illustrative":true,"notice":"Illustrative allocation of the compiled midpoint. Component lines are not separately sourced and should not be interpreted as observed tariff charges.","notice_short":"Illustrative allocation — lines not separately sourced","vocabulary_version":"evidence-layers-1.0"},"cost_pillar":{"state":"analyst_assessment","label":"Analyst assessment","means":"The score is a judgement recorded with a written cost-specific rationale. It is not calculated from a formula and does not claim to be.","reproducible":false},"layers_are_independent":"Band, component and cost-pillar evidence are separate judgments. A market may have a sound, applicable band and an illustrative component breakdown at the same time. Do not read a component-evidence limitation as a statement about the band."}}