INERTIA, Power in Perfect Balance

Recognised by the National Energy System Operator

TURN YOUR ASSETS
INTO REVENUE

Grid balancing that pays you. INERTIA connects homeowners, businesses and installers to the National Grid's balancing scheme, turning solar panels, batteries, heat pumps and EV chargers into a revenue stream.

For homeowners · businesses · installers

Customers can enter a 3-month trial period to see if INERTIA works for their setup.

Frequency responseReact instantly to grid imbalancesYour assets respond in milliseconds when grid frequency dips below 50Hz.
Negative pricingEarn when the grid is oversuppliedShift your load when wholesale prices turn negative.
Energy arbitrageBuy low, sell high automaticallyCharge when energy is cheap. Dispatch when prices peak.
Demand flexibilityShift load to balance the networkReschedule consumption to help ease peak grid demand.
INERTIA servicesStabilise grid frequency in real timeHelp the grid resist sudden frequency swings.
Capacity MarketPayments for standby capacityKeep standby capacity ready for the grid.

Drag in any direction to spin

INERTIA platform

Grid response

Monitoring
Grid signals24/7 visibility
Energy assetsFlexible response
Solar PVConnected asset
BatteryConnected asset
Heat pumpsConnected asset
EV chargingConnected asset

Illustrative platform visualisation

Six asset types · One grid balancing platform

More devices.
More opportunity.

Turn the equipment you already have into a flexible energy resource. INERTIA connects home, business and industrial assets to grid balancing.

Solar panels on a home rooftop
Tap to see grid services ↓

Solar PV

Solar generation can contribute flexibility, especially when paired with controllable storage.

Potential grid services

  • Negative pricing

    When export prices are negative, controllable systems may reduce or shift export, subject to the inverter, metering and market arrangement.

  • Demand flexibility

    Where solar is paired with controllable loads or a battery, generation can be used on site or stored rather than exported.

  • Energy arbitrage

    Solar paired with a battery can store energy and shift when it is used or exported, subject to the site setup and market access.

Actual eligibility and performance depend on your equipment, controls, connection, market rules and technical qualification. Not every service is available to every asset.

A modern home battery storage unit
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Battery storage

A controllable battery can store, release or shift energy to support different grid services.

Potential grid services

  • Frequency response

    A suitably controlled battery can charge or discharge in response to grid-frequency signals, subject to technical and market qualification.

  • Energy arbitrage

    Store energy when prices are lower and discharge when prices are higher, within battery limits and the agreed market route.

  • Negative pricing

    A battery may charge or adjust export during negative-price periods when its controls, tariff and market setup allow.

  • Demand flexibility

    Charge or discharge can be scheduled to shift the site’s import and export when the grid needs flexibility.

  • Inertia services

    Some grid-forming batteries can provide fast stability support when fitted with suitable controls and accepted for the service.

  • Capacity Market

    Eligible storage may take part in capacity arrangements when it meets the applicable testing, delivery and contract requirements.

Actual eligibility and performance depend on your equipment, controls, connection, market rules and technical qualification. Not every service is available to every asset.

Air source heat pump outside a home
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Heat pumps

Flexible heating can shift some electricity use while maintaining comfort and heat.

Potential grid services

  • Demand flexibility

    A smart controller and thermal storage can shift heating away from high-demand periods, within comfort and system limits.

  • Negative pricing

    Where controls and tariffs allow, heating can be scheduled to use more electricity during lower or negative-price periods.

  • Energy arbitrage

    A heat pump with suitable thermal storage may shift electricity use to different price periods; it does not export power by itself.

Actual eligibility and performance depend on your equipment, controls, connection, market rules and technical qualification. Not every service is available to every asset.

Electric vehicle connected to a home charger
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EV charging

Smart charging can move vehicle charging to different times; export requires a compatible vehicle and charger.

Potential grid services

  • Demand flexibility

    Smart charging can pause or shift charging to help manage demand, provided the vehicle is connected and the driver’s needs are met.

  • Negative pricing

    Charging may be moved into lower or negative-price periods when the charger, vehicle, tariff and controls support it.

  • Energy arbitrage

    Smart charging can shift the timing of electricity use; exporting stored energy requires compatible bidirectional equipment and an eligible setup.

  • Frequency response

    Fast response is only possible where the charger, vehicle, control system and market qualification support the required service.

Actual eligibility and performance depend on your equipment, controls, connection, market rules and technical qualification. Not every service is available to every asset.

Large solar farm at dusk with rows of photovoltaic panels
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Solar farms

Utility-scale solar can offer generation flexibility, often alongside co-located storage.

Potential grid services

  • Negative pricing

    Dispatchable solar may adjust export during negative-price periods, depending on connection, contracts and plant controls.

  • Demand flexibility

    Curtailment or coordinated output changes can provide flexibility where the plant and connection arrangements permit.

  • Energy arbitrage

    Solar paired with storage can shift exported energy to different periods, subject to the battery, metering and market route.

  • Capacity Market

    Participation depends on eligible capacity, delivery capability and meeting the applicable Capacity Market rules.

Actual eligibility and performance depend on your equipment, controls, connection, market rules and technical qualification. Not every service is available to every asset.

Grid-scale battery energy storage site at dusk
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Grid-scale battery storage

Large batteries can deliver fast, flexible response when their controls and market qualification support it.

Potential grid services

  • Frequency response

    Fast battery controls can adjust charging or discharge in response to grid frequency, subject to the specific service qualification.

  • Energy arbitrage

    Store electricity in lower-price periods and discharge in higher-price periods within operational and market limits.

  • Negative pricing

    Charging and export can be adjusted during negative-price periods when the connection, contracts and controls allow.

  • Demand flexibility

    Scheduled imports and exports can be shifted to support the wider system and local constraints where applicable.

  • Inertia services

    Suitable grid-forming inverters may provide stability support after completing the required technical assessment and qualification.

  • Capacity Market

    Eligible storage can seek capacity revenue by meeting the scheme’s availability, testing and delivery obligations.

Actual eligibility and performance depend on your equipment, controls, connection, market rules and technical qualification. Not every service is available to every asset.

Commercial industrial facility with energy infrastructure at dusk
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Business & industry

Flexible processes, on-site generation and storage can be assessed for grid services.

Potential grid services

  • Demand flexibility

    Eligible processes can reduce or shift electricity use at agreed times without compromising operational requirements.

  • Frequency response

    Fast, controllable loads or batteries may respond to frequency signals if they meet technical standards and qualification.

  • Negative pricing

    Flexible demand or storage can respond to negative-price periods where site controls, contracts and settlement arrangements allow.

  • Capacity Market

    Eligible dependable capacity may participate directly or through an aggregator, subject to scheme rules and obligations.

Actual eligibility and performance depend on your equipment, controls, connection, market rules and technical qualification. Not every service is available to every asset.

Commercial HVAC and refrigeration units on a rooftop at dusk
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HVAC & refrigeration

Thermal flexibility can shift cooling and heating demand while respecting site operating limits.

Potential grid services

  • Demand flexibility

    Control systems can adjust or shift cooling and heating within safe temperature and process limits.

  • Frequency response

    Automated loads may provide fast response if their control speed, telemetry and aggregation meet service requirements.

  • Negative pricing

    Where operations permit, thermal loads can be shifted to make use of lower-price periods.

  • Capacity Market

    Aggregated flexible demand may qualify for capacity arrangements when scheme requirements are met.

Actual eligibility and performance depend on your equipment, controls, connection, market rules and technical qualification. Not every service is available to every asset.

Try the grid simulator

See flexibility in action.

Choose assets and a grid condition to see an illustrative balance response and what each connected asset could be doing.

1. Choose your energy assets

Select assets, then see how their response changes by grid condition.

2. Choose a grid scenario

See how the grid frequency changes with each condition.

What your assets are doing

Balanced

Select one or more assets to see how each could respond in the chosen grid condition.

    Illustrative grid response

    Grid frequency · 50 Hz

    50.00 Hz target

    See how selected assets may respond in each condition.

    Illustrative grid balance

    Balanced · 50.00 Hz

    Conceptual illustration only · not a live grid measurement

    BALANCED · GRID AT 50.00 HZSupply matches demand · 50.00 HzChoose assets

    Select assets to simulate

    Concept illustration

    Illustrative only. This simulator is an educational example, not a live grid feed, revenue forecast or guarantee of performance.

    The process

    How grid balancing works

    INERTIA monitors grid needs and coordinates flexible energy assets to help balance electricity supply and demand.

    01

    Generate & store

    Your solar panels, batteries and other assets generate and store electricity.

    02

    Monitor in real time

    INERTIA's AI software monitors the grid continuously and predicts when balancing is needed.

    03

    Respond & balance

    Stored energy is released or demand is shifted when the grid needs it most.

    04

    Get paid

    You receive premium payments from NESO for helping to balance the grid.

    In partnership with NESO

    Connected to the official balancing scheme.

    INERTIA works with the National Energy System Operator to deliver grid balancing services that help keep the UK's electricity supply secure, stable and clean. Your assets connect to the official balancing scheme, not a third-party intermediary.

    50Hz

    Grid frequency we help maintain

    24/7

    Real-time grid monitoring

    100%

    UK-focused balancing scheme

    AI-driven, around the clock

    Wholesale rates.
    Shared fairly.

    INERTIA accesses the same wholesale energy market rates big energy companies use, rates rarely passed on to the people who own the assets. We think that’s wrong. Our model is simple: you earn the lion’s share, your installer earns a fair ongoing percentage, and INERTIA takes a fixed percentage of what’s generated. No hidden margins. No profiteering.

    See how the model works

    Start with what you have

    Make your energy assets work harder.

    Customers can enter a 3-month trial period to see if INERTIA works for their setup. Tell us about your home, business or installation work and we’ll confirm the next steps.

    Register your interest