Fusebox: Operating software for distributed flexibility portfolios

Fusebox connects asset control, aggregation and market execution, with industrial protocols and APIs for utilities, traders and flexibility providers.

Best for: Utilities, traders and aggregators retaining their own trading strategy and tools.
Less suited to: A consumer energy app or guaranteed access to every balancing market.
Deployment: Modular software with existing site controllers or optional Fusebox controllers.
Data in: Asset telemetry, schedules, forecasts and market instructions through APIs and industrial protocols.
Pricing: Commercial scope includes onboarding, integrations and subscription; obtain a portfolio-specific quote.

Overview

Fusebox provides an operational software layer for businesses managing distributed flexibility. Its solution links site control, portfolio aggregation and market execution so that a trading decision can be carried through to equipment and reconciled with results. The platform overview is aimed at utilities, traders and independent aggregators that want to retain their own tools and strategies. This is a different role from supplying a single battery or a closed optimisation service: Fusebox provides the connections and workflows through which a mixed portfolio can be operated as a coordinated resource.

Offering

The functionality catalogue includes dynamic asset control, forecasting, dispatch, aggregation and interfaces with external trading systems. The PV-production tool adds a specific generation workflow: forecasts use measured site history, curtailment records and currently available equipment, rather than only nameplate capacity. It produces 15-minute intervals and can feed a trading desk or operate inside the wider Fusebox system. The distinction is useful for a solar portfolio with storage: expected production and available flexibility need to reflect what the site can actually deliver during the relevant settlement period.

Products and platforms

PV Production Forecast
Solar forecasting software

15-minute production forecasts using site history and available equipment.²

Technology

Fusebox explicitly names Modbus, MQTT and IEC-104 for asset connectivity, alongside REST and SOAP API interfaces. Existing site controllers can be retained, with Fusebox controllers available where needed. Its system architecture connects telemetry, plans and reporting outputs with external optimisers and trading desks. A customer can therefore separate its commercial strategy from the execution layer. The protocols identify supported connection routes, while site mappings, control constraints and target-market requirements still shape the delivered integration; an IEC-104 connection alone does not qualify an asset to provide a balancing service.

Markets

The solution description addresses balance-responsible parties, balancing-service providers, utilities, traders and aggregators. These organisations need consistent bidding, activation and reporting across a portfolio, not just a collection of equipment dashboards. The PV example illustrates one part of that workflow, using deliverable production forecasts to inform market decisions. Fusebox also describes expansion across multiple transmission-system-operator jurisdictions. Its commercial model includes onboarding, integration and subscription work, with costs dependent on the existing stack and asset mix. Published comparative cost ranges are indicative project scenarios rather than a fixed catalogue price.

Company

Fusebox describes its roots in Estonian flexibility operations, with an operational hub in Tallinn and experience running demand-response and aggregated portfolios. That background is reflected in the product's emphasis on activation, bidding and reporting, rather than monitoring alone. The current system is presented as an infrastructure layer for other professional energy teams, allowing customers to retain control of their data and commercial strategy. Its development has therefore moved from practical flexibility operation into repeatable software workflows that can connect assets, existing business tools and several national market processes. Its official company information gives 2014 as the founding year and Tallinn, Estonia as headquarters.