National Grid Business Model Canvas
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Unlock National Grid’s strategic core with a concise Business Model Canvas preview that outlines customer segments, value propositions, channels and revenue logic; then get the full, downloadable Word and Excel canvas for a section-by-section breakdown, financial implications, and ready-to-use slides—perfect for investors, consultants, and strategists aiming to benchmark or replicate proven utility-scale success.
Partnerships
Partnerships with Ofgem, FERC, state Public Utility Commissions and market operators NYISO and ISO‑NE ensure compliance and market coordination for National Grid's transmission businesses in NY and New England. Regulators shape allowed returns, incentives and investment plans that underpin multi‑year capex — NYISO serves ~34 GW peak and ISO‑NE ~28 GW, driving joint planning to integrate renewables. Close alignment reduces regulatory risk and supports timely approvals for grid upgrades and new demand connections.
Grid stability relies on close coordination with power generators, gas shippers, LNG terminals and cross‑border interconnectors; UK winter peak demand around 45 GW highlights reliance on these partners. These providers supply capacity and flexibility for peak and contingency events, with interconnectors offering roughly 8 GW of transfer capacity. Robust interconnection agreements enable timely, safe project connections, while shared operational data improves forecasting and dispatch efficiency.
Partnerships with OEMs for transformers, cables and switchgear secure critical supply chains and support National Grid’s 2024 capital programme of around £5bn for network reinforcement. Digital vendors deliver SCADA/EMS/DMS, sensors and analytics that underpin real-time operations and asset optimization. Cybersecurity partners harden OT/IT systems against evolving threats and the sector reported a 2024 increase in critical infrastructure cyber collaboration. Joint innovation accelerates grid modernization and resilience.
EPC contractors and specialist service firms
EPC contractors deliver complex, multi‑year capital programmes and, in 2024, remain central to National Grid’s rollout of network reinforcement and expansion; specialist firms focus on high‑voltage works, pipeline integrity and environmental services, boosting execution capacity and safety performance. Framework agreements improve cost predictability and quality across delivery chains.
- Execution capacity: scalable multi‑year EPC delivery
- Specialist scope: HV, pipeline integrity, environmental
- Safety: specialist alliances raise performance
- Commercial: framework agreements → cost predictability & quality
Local governments, communities, and emergency services
Collaboration with local governments, communities, and emergency services secures permitting, siting, and rights‑of‑way for linear assets and speeds deployment to meet targets such as the UK 50 GW offshore wind by 2030.
Community engagement builds social licence and mitigates local impacts; coordinated emergency planning improves storm response and public safety; joint planning advances resilience and just energy transitions.
- Permitting: enables siting and ROW
- Social licence: reduces opposition
- Emergency coordination: faster storm recovery
- Joint planning: resilience + just transition
National Grid's key partnerships with regulators, system operators and market bodies secure allowed returns and coordinated planning underpinning ~£5bn 2024 UK capital programme. Coordination with generators, gas/LNG suppliers and ~8 GW of interconnectors supports winter peaks (~45 GW UK) and US regional peaks (NYISO ~34 GW, ISO‑NE ~28 GW). OEMs, EPCs and digital/cyber vendors deliver equipment, multi‑year execution and hardened OT/IT as cyber collaboration rose in 2024.
| Partner | Role | 2024 metric |
|---|---|---|
| Regulators/Market Ops | Allowances, approvals | £5bn capex (UK 2024) |
| System operators | Planning/dispatch | NYISO 34 GW; ISO‑NE 28 GW |
| Generators/Interconnectors | Capacity/flexibility | UK interconnectors ~8 GW; UK peak ~45 GW |
| OEMs/EPCs/Digital | Delivery, tech, cyber | Multi‑year frameworks; 2024 ↑ cyber collaboration |
What is included in the product
A comprehensive Business Model Canvas for National Grid detailing customer segments, channels, value propositions and revenue streams across the 9 BMC blocks, aligned with real-world network operations and strategic plans; includes competitive advantages and linked SWOT analysis to support investor presentations, financing discussions, and strategic decision-making.
High-level view of National Grid’s business model with editable cells, clarifying regulated networks, renewable integration, and customer solutions to relieve strategic and operational pain points.
Activities
Operate and maintain transmission and distribution networks 24/7 to keep electricity and gas flowing reliably for over 20 million customers; system operations monitor flows, outages and resilience in real time. Control centers balance loads and manage contingencies to meet N-1 reliability standards and minimize unserved energy. Field teams carry out thousands of inspections, vegetation management cycles and repairs annually, with strict standards and procedures enforcing safety and asset integrity.
Long-term network planning at National Grid addresses demand growth, aging assets and net-zero goals, supporting projects such as substations, high-voltage lines, pipelines and interconnections. Program management targets on-time, on-budget delivery across c.£9bn group capital expenditure in 2024. Close stakeholder coordination minimizes disruption and cost and secures timely consents and local engagement.
Deploying sensors, automation and advanced analytics improves visibility and control; National Grid reported investing £3.8bn in grid digitalization and network upgrades in 2024. Upgraded SCADA/EMS/DMS systems enhance situational awareness and outage response times. AMI and consolidated data platforms support improved customer service and operations, while cybersecurity is embedded across OT and IT layers to protect grid integrity.
Interconnections and customer connections
Processing applications for generators, DERs and large loads is core to National Grid’s interconnections function, with studies assessing capacity, stability and protection to meet system standards and target energization timelines.
Construction of tie‑ins and metering is coordinated to enable timely energization, while transparent queues and published standards ensure fairness and efficient project delivery; connection queues in 2024 exceeded 20 GW of DER requests.
- applications processed: connection assessments, protection studies, stability analysis
- construction: tie‑ins, metering, on‑site commissioning
- governance: transparent queues, published standards, first‑come/first‑serve rules
Storm preparedness and emergency response
Storm preparedness and emergency response combine continuous weather monitoring, grid hardening and mutual‑assistance plans to reduce outage duration; pre‑staging crews and materials speed restoration; communication protocols keep customers and authorities informed; after‑action reviews drive continuous improvement.
- Weather monitoring
- Hardening & mutual assistance
- Pre‑staging crews/materials
- Customer & authority communications
- After‑action reviews
Operate and maintain transmission and distribution 24/7 for 20m customers; balance loads and meet N‑1 standards. Deliver long‑term planning and c.£9bn capex (2024) for substations, lines and pipelines. Invested £3.8bn in digitalisation (2024) and process >20GW DER connection queue.
| Metric | 2024 |
|---|---|
| Customers served | 20m |
| Group capex | c.£9bn |
| Digitalisation spend | £3.8bn |
| DER connection queue | >20GW |
What You See Is What You Get
Business Model Canvas
The document you're previewing is the actual National Grid Business Model Canvas you'll receive—it isn't a mockup. After purchase you'll download this exact, fully editable file with all sections included, formatted for immediate use in presentations, analysis, or strategy workshops.
Resources
Transmission lines, substations, pipelines and compressors are mission‑critical for National Grid, supporting bulk power and gas flows; National Grid has committed over £22bn of network investment for 2021–26 to maintain and upgrade these assets. Redundancy, N‑1 design standards and asset resilience programs support reliability and system security. Rights‑of‑way and easements secure long‑term access, while asset condition assessments drive prioritised CAPEX and risk mitigation.
SCADA/EMS/DMS, AMI, telecoms and cloud data platforms provide sub-second visibility and control for National Grid’s real‑time operations; Great Britain had over 30 million smart meters installed by end‑2023 supporting granular demand data. Cyber-resilient IT/OT architectures and IEC 62443-aligned controls protect service continuity. Digital twins and planning tools optimize capital allocation while network models enable forecasting and DER integration.
Engineers, operators, linemen and gas technicians at National Grid—about 20,000 employees in 2024—deliver safe, reliable service, backed by licenses, craft-specific training and certifications. A strong safety culture, reflected in multi-year reductions in incidents, lowers operating and insurance costs. Leadership, governance and compliance frameworks drive performance and continuous workforce competency development.
Regulatory licenses, franchises, and relationships
Authorizations to operate networks and serve territories, governed by frameworks such as RIIO-2 in the UK (2021–26) and state PUC regimes in the US, are foundational to National Grid’s business in 2024. Constructive regulatory relationships reduce uncertainty and enable multi-year investment plans. Performance incentives and tariff mechanisms align investment with public outcomes and support cost recovery and required returns.
- Regulatory frameworks: RIIO-2, US state PUCs (2024)
- Outcome incentives: performance-linked rewards/penalties
- Tariffs: allow cost recovery and ROE mechanisms
Financial capacity and investment grade access
National Grid's strong balance sheet underpins multi‑year transmission and decarbonisation programs, enabling large capital deployments while maintaining investment‑grade funding access in 2024.
Access to debt and equity markets keeps WACC competitive, while active hedging and treasury operations manage interest‑rate and commodity exposures and comprehensive insurance programs limit catastrophic loss.
- Balance sheet: funds multi‑year capex
- Funding: investment‑grade market access
- Risk: hedging and treasury manage rates/commodities
- Protection: insurance limits catastrophic exposure
Transmission assets, control systems and skilled workforce underpin National Grid; £22bn network investment (2021–26), >30m smart meters (end‑2023) and ~20,000 employees (2024) support resilience and DER integration. Investment‑grade funding and active hedging secure capex and limit financial risk.
| Resource | 2024 metric | Note |
|---|---|---|
| Network capex | £22bn (2021–26) | UK transmission/gas upgrades |
| Smart meters | >30m | end‑2023 GB |
| Workforce | ~20,000 | 2024 employees |
| Funding | Investment‑grade | market access |
Value Propositions
Customers and society depend on consistent, safe energy delivery; National Grid serves around 20 million customers across the UK and US and designs systems with operational redundancy to minimize outages. Safety leadership and published safety programs protect workers and the public, while regulatory compliance and transparency sustain trust and continuous service.
Rate frameworks such as RIIO-2 (2021–26) provide transparency and stability for customers and investors, with National Grid’s regulated asset base exceeding £20bn in 2024. Efficiency programs and strict cost controls target lower unit costs and protect affordability. Pass‑through mechanisms for specified costs reduce bill volatility where applicable. Long‑term plans align multi‑year spending with quantified network value and decarbonisation targets.
Grid upgrades integrate renewables, storage and EV charging to increase capacity and flexibility, supporting National Grid’s 2024 planning that accelerates net‑zero pathways toward the UK’s 2050 target.
Gas network modernization in 2024 focuses on reducing methane emissions and enabling hydrogen and biomethane injection to support low‑carbon gases.
New and expanded interconnections unlock regional flexibility by balancing supply across markets and lowering system costs while planning frameworks speed decarbonization delivery.
Capacity for growth and new connections
Timely interconnections in 2024 supported rapid connection of generators, DERs and large customers by streamlining queue processes and technical standards, reducing hold-ups for projects entering the grid.
Targeted network reinforcements in 2024 unlocked constrained zones, while scalable solutions and updated standards accommodated near-term demand growth and future capacity increases.
Resilience and rapid restoration
Hardening and contingency plans reduce storm impact and, per National Grid ESO's 2024 Future Energy Scenarios, support accelerated system flexibility. Data‑driven crew allocation and asset analytics speed restoration and cut mean time to repair in targeted pilots. Proactive, automated communications improve customer experience while continuous improvement cycles raise resilience year‑on‑year.
- Hardening: targeted asset reinforcement
- Data‑driven: analytics-led dispatch pilots
- Communications: automated customer updates
- Improvement: iterative resilience programs
National Grid delivers safe, reliable energy to ~20 million customers across the UK and US, backed by published safety programs and operational redundancy. Regulated frameworks (RIIO-2 2021–26) and a regulated asset base >£20bn in 2024 provide investment stability and cost transparency. Network upgrades, interconnections and gas modernization accelerate decarbonisation toward the UK 2050 net‑zero goal.
| Metric | 2024 figure |
|---|---|
| Customers served | ~20 million |
| Regulated asset base | >£20bn |
| Regulatory period | RIIO-2 (2021–26) |
| Net-zero target | UK 2050 |
Customer Relationships
Under the RIIO-2 framework (2021–2026) performance targets define reliability, safety and customer outcomes, with 2024 reporting cycles increasing transparency and accountability; regulatory incentive mechanisms attach rewards and penalties to those targets to align behavior, and consistent execution of SLAs by National Grid reinforces customer trust.
Contact centers, web portals and mobile apps handle billing, outage reporting and service requests, while 2024 data show utilities saw digital contacts exceed 60% of customer interactions. Self‑service options cut friction and average wait times, improving first‑contact resolution. Accessible channels (phone, web, app, SMS) meet diverse needs, and structured feedback loops feed operational and UX improvements.
Formal consultations underpin siting and major investments for National Grid, informing decisions across its c.7,100 miles (11,430 km) UK high-voltage network in 2024. Community meetings address local concerns and articulate benefits, while collaboration with NGOs and local leaders builds acceptance and social license. Ongoing dialogue lowers project delivery and consenting risk, shortening timelines and reducing costly redesigns.
Proactive outage and safety communications
Proactive outage and safety communications provide real-time alerts to set expectations during events, improving trust for National Grid's ~20 million customers (2024). Safety messaging reduces hazards around worksites and lowers incident risk. Estimated restoration updates drive higher satisfaction; industry data show alerts can cut inbound calls by up to 40%. Post-event surveys collect actionable feedback to guide service enhancements.
- real-time alerts: set expectations
- safety messaging: reduce worksite hazards
- restoration updates: improve satisfaction
- post-event surveys: guide enhancements
Key account management for large users and municipalities
Dedicated National Grid account teams serve large C&I users, city agencies and critical facilities across ~20 million customers (US/UK), delivering tailored reliability, ESG and electrification roadmaps. Data-sharing and real-time analytics enable demand management pilots that cut peak load up to 15% and defer capital projects. Strategic partnerships and aggregated procurement have reduced total cost of energy in pilots by roughly 3–7%.
- Dedicated teams for C&I, cities, critical facilities
- Tailored reliability, ESG, electrification plans
- Data-sharing → demand reduction up to 15%
- Partnerships lower energy cost ~3–7%
Under RIIO-2, performance targets and incentives (2021–26) drive reliability and customer outcomes; 2024 reporting increases transparency and SLA execution builds trust. Digital contacts exceeded 60% in 2024, reducing wait times and raising first‑contact resolution. Proactive alerts cut inbound calls up to 40% during outages; National Grid serves ~20 million customers across c.7,100 miles (11,430 km).
| Metric | 2024 value |
|---|---|
| Customers | ~20,000,000 |
| Network length | c.7,100 miles (11,430 km) |
| Digital contacts | >60% |
| Peak demand reduction (pilots) | up to 15% |
| Cost reduction (pilots) | 3–7% |
| Alerts impact | -40% inbound calls |
Channels
Digital portals and mobile apps let customers manage accounts, report outages and request connections online; as of 2024 National Grid serves around 20 million customers across its networks, enabling scale for digital self-service.
Embedded analytics personalize experiences and offer tailored energy-saving advice based on usage patterns.
Secure authentication and encryption protect customer data while digital tools reduce manual processing and overall service delivery costs.
Phone support provides 24/7 handling of emergencies and complex cases for National Grid, which serves roughly 20 million customers as of 2024; IVR scales during storms and peaks to route high-volume contacts and maintain service continuity. Trained agents focus on rapid resolution and escalation for safety-critical incidents. Continuous quality monitoring ensures consistent procedures and customer outcomes.
Crew visits, town halls and pop‑ups provide local presence—National Grid, serving c.20 million customers with ~21,000 employees, uses these touchpoints to reach communities directly. On‑site communications explain works and timelines, reducing complaints and clarifying schedules tied to multi‑billion pound investment programs. Safety demonstrations build goodwill and lower incident rates; direct feedback from events informs project plans and route selection.
Regulatory filings and public reports
Regulatory filings, including rate cases, investment plans and quarterly performance updates, inform investors, regulators and customers and underpin approvals and funding for network investment. Public dashboards and standardized reports boost transparency and accountability. Documentation standardizes engagement across jurisdictions and supports timely cost recovery.
- Rate cases: stakeholder signaling and approval pathway
- Investment plans: capital funding justification
- Public dashboards: real-time accountability
- Documentation: consistent engagement standard
Market and partner interfaces
Interconnection portals and real-time data feeds give generators and suppliers direct access to dispatch, pricing, and availability information, reducing settlement friction and improving liquidity. APIs automate eligibility checks, transaction settlements and interconnection studies, cutting administrative lead times and manual errors. Coordination platforms align outage schedules and dispatch forecasts to minimize constraint costs and enhance system reliability.
- Portals: direct dispatch & pricing access
- APIs: automated transactions & studies
- Coordination: aligned outages & schedules
- Standards: fewer errors, faster timelines
Digital portals and apps enable self-service for c.20 million customers as of 2024, speeding connections and lowering manual costs.
24/7 phone support and IVR manage emergencies and peaks; c.21,000 employees support field response and escalations.
Interconnection portals and APIs provide real-time dispatch/pricing feeds, reducing settlement friction and administrative lead times.
| Channel | Reach/Metric (2024) |
|---|---|
| Digital portals/apps | c.20 million customers |
| Phone/IVR | 24/7 support; field ops backed by c.21,000 employees |
| Interconnection/APIs | Real-time feeds; automated settlements |
Customer Segments
National Grid serves about 7 million residential and small business customers in the US (primarily NY, MA and RI), with service needs focused on affordability, reliability and simple support. Many customers participate in efficiency programs and demand response, with participation in the hundreds of thousands as of 2024. Some customers receive default supply service where state markets require it.
Critical facilities demand high reliability and tailored solutions, with National Grid offering dedicated resilience services and account teams; electrification and 2024 ESG-driven load growth are increasing large C&I demand, while data services and flexible tariffs (demand response, time-of-use) add value and lower total cost of ownership; proactive key account support ensures bespoke contracts, SLAs and rapid outage response.
Suppliers use National Grid networks to deliver commodity to end‑users; in 2024 the networks supported delivery to around 28 million UK households. Gas shippers contract capacity and balancing services to manage flows and flexibility across the system. Accurate metering and settlement are vital, handling tens of millions of reads and transactions annually. Interfaces must be transparent and fair to protect competition and system security.
Generators, DER developers, and storage providers
Generators, DER developers and storage providers require timely, cost‑effective interconnections from National Grid, with interconnection studies and network upgrades determining accessible capacity. Clear queues and milestones reduce commercial and construction risk, while curtailment rules and dispatch coordination shape revenue and operational certainty. National Grid serves about 20 million customers (2024), making streamlined interconnection essential.
- Timely interconnections
- Studies & upgrades define capacity
- Clear queues & milestones reduce risk
- Curtailment & dispatch coordination matter
Distribution network operators and municipal entities (UK)
Distribution network operators and municipal entities interface at Grid Supply Points, coordinating on outages and relying on transmission capacity—UK has 14 DNOs and winter 2023–24 peak demand was about 46 GW. National Grid’s RIIO-2 (2021–26) planning horizons drive local network investment and Ofgem charging reforms mean tariff signals materially influence downstream decisions.
- 14 DNOs
- ~46 GW peak (W 2023–24)
- RIIO-2 (2021–26) planning
- Ofgem charging reforms affect tariffs
National Grid serves ~7m US residential/small business customers and ~28m UK households, prioritizing affordability, reliability and program participation (hundreds of thousands in efficiency/demand response in 2024). Large C&I and critical facilities demand resilience and bespoke SLAs; generators/DERs require timely interconnection and clear queues; 14 DNOs; ~46 GW winter peak (2023–24).
| Segment | Key metric | 2024 figure |
|---|---|---|
| US small users | Customers | ~7,000,000 |
| UK households | Connected | ~28,000,000 |
| Efficiency participants | Participants | hundreds of thousands |
| System | Winter peak | ~46 GW |
Cost Structure
Capital expenditures for networks require large, ongoing investments in lines, substations, pipelines and IT, with annual network capex in 2024 remaining in the low billions. Multi‑year programmes must be carefully phased across financial years to align with regulatory price controls. Supply‑chain constraints and permitting materially drive timelines and cost variability. Depreciation is recorded according to regulatory asset lives, typically multi‑decade schedules.
Routine inspections, repairs and preventative work sustain reliability, with National Grid allocating about £1.0bn in 2024 toward operations and vegetation management to meet regulatory targets. Vegetation control cuts outage risk and has been linked to double-digit reductions in storm-related outages. Spares, fleet and logistics costs maintain field readiness, while contractor spend supplements internal crews to scale response during peak events.
Skilled workforce compensation is a major cost for National Grid, which employed about 23,000 people in 2024, driving substantial salary and benefits outlays. Training programs fund certifications and competency renewal to maintain service quality and regulatory compliance. Investment in safety initiatives reduces incident-related costs and downtime, and higher retention lowers reliance on premium contractors and temporary labor.
IT/OT, cybersecurity, and data management
IT/OT systems—SCADA, telecoms, AMI, and analytics platforms—require continual funding for upgrades, licensing, cloud hosting, and integration to keep operations resilient and efficient.
Robust cyber defenses are essential to protect National Grid’s critical infrastructure and maintain regulatory compliance, while data governance programs ensure data quality, privacy, and commercial value.
- Ongoing platform OPEX: licensing, cloud, integration
- SCADA/telecoms/AMI lifecycle upgrades
- Cybersecurity for critical infrastructure
- Data governance for compliance and monetization
Regulatory, compliance, taxes, and storm restoration
Rate case processes, audits and recurring regulatory reporting drive predictable O&M and capital recovery cycles for National Grid, with filings and compliance reviews occurring each regulatory period and affecting allowed returns and cashflow timing. Property taxes and rights‑of‑way fees represent material, recurring cost buckets that are recovered through tariffs or surcharges. Storm restoration produces variable, sometimes capitalizable costs; insurance and proactive claims management reduce net financial impact and volatility.
- Regulatory filings: recurring
- Property taxes & ROW: material
- Storm restoration: variable, capitalizable
- Insurance & claims: mitigants
Network capex requires multi‑billion, multi‑year spend with regulated phasing; network capex in 2024 was about £2–3bn. Routine O&M (incl. vegetation) ran ~£1.0bn in 2024 and spares/contractor costs scale for peak events. Workforce (~23,000 employees in 2024), IT/OT, cybersecurity and property taxes are material recurring cost drivers.
| Item | 2024 value |
|---|---|
| Network capex | £2–3bn |
| O&M (incl. vegetation) | £1.0bn |
| Employees | 23,000 |
| Vegetation spend | Part of O&M |
Revenue Streams
Allowed returns on regulated asset value (Ofgem set a 4.0% real allowed return for RIIO-2, 2021–26) drive core UK transmission income, while US state regulators deliver higher ROEs (commonly 7–10% in 2024). Incentive mechanisms reward reliability and efficiency; true‑ups adjust over/under recovery; long‑term settlements provide multi‑year visibility.
Delivery charges in National Grid US distribution tariffs recover O&M, depreciation and an allowed return; in 2024 allowed ROEs in northeast US jurisdictions broadly ranged around 8–10%, underpinning revenue recovery.
Customer charges and volumetric rates are applied by class (residential, commercial, industrial), with fixed monthly customer charges plus $/kWh or $/therm volumetric blocks reflecting class cost-to-serve in 2024.
Riders in 2024 supported specific programs and deferrals (storm costs, vegetation management, infrastructure investments), while performance incentive mechanisms in some jurisdictions added incremental returns via bonuses tied to reliability and customer metrics.
Shippers pay for firm and interruptible capacity under National Grid’s gas transportation tariffs, with balancing and overrun charges applied per network code rules; seasonal pricing reflects higher winter demand versus summer baseload. In 2024 long‑term capacity contracts continued to underpin cash flows, reducing volatility from spot sales and supporting regulated revenue predictability.
Connection and interconnection fees
Applicants fund studies and required upgrades, with National Grid recovering costs through connection and interconnection fees; standardized fee schedules introduced in 2024 improve transparency and predictability for developers. Milestone payments align cashflows to project stages, reducing upfront exposure, while refunds or credits may apply under published tariffs when projects change or deferred.
- Applicants fund studies/upgrades
- 2024 standardized fee schedules for transparency
- Milestone payments tied to stages
- Tariff-based refunds or credits possible
Ancillary, meter, and other regulated services
- Services: metering, reconnection, data provision
- Ancillary: limited in some jurisdictions
- Pass-throughs/late fees: regulated
- Role: complements core tariff income
Regulated allowed returns (Ofgem 4.0% real for RIIO‑2, 2021–26) and US state ROEs (≈8–10% in 2024) form core transmission/distribution revenue, with incentives and true‑ups smoothing recovery. Volumetric and fixed customer charges by class, riders and long‑term capacity contracts reduce volatility. Connection fees, milestone payments and ancillary metering (GB >32m smart meters by end‑2024) add predictable supplementary cashflows.
| Metric | 2024 Value |
|---|---|
| UK allowed return (RIIO‑2) | 4.0% real |
| US ROE range | ≈8–10% |
| GB smart meters | >32 million |