Fusebox OS vs CheckWatt
EXECUTIVE SUMMARY
Who each solution is for
When to choose Fusebox OS
Choose Fusebox OS if you need to:
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Build and run a C&I, utility-scale, or multi-country flexibility business and keep customer and commercial control.
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Use a white-label, multi-tenant EMS + VPP platform to operate your own aggregation business or partner offering.
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Connect to multiple TSOs and markets across Europe, not only the Swedish residential segment.
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Manage hybrid and multi-asset sites (PV + BESS + loads), demand response, and mixed portfolios with one operational backbone.
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Go live fast and reach first market revenues typically in 1–6 months, depending mainly on whether new TSO connections are required.
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Rely on proven operational delivery: 11 years in market and experience connecting 100+ different asset types into tradable portfolios.
When to choose CheckWatt
Choose CheckWatt if you need to:
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A turnkey BESS + solar + aggregation solution for households, housing associations, and small property owners in Sweden.
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A provider that handles balance responsibility and electricity trading and delivers a simple packaged offer for end customers.
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A Sweden-centric solution optimised for high-volume residential and small commercial deployments.
FEATURE COMPARISON TABLE
| Capability / Dimension | Fusebox OS | CheckWatt |
|---|---|---|
| CORE SCOPE | ||
| EMS for hybrid C&I and utility-scale sites | ✓ | ~ |
| Residential and small commercial BESS + solar focus | ~ | ✓ |
| VPP / aggregation for distributed assets | ✓ | ✓ |
| Acting as BRP / balance responsible party | ~ (customer/partner choice) | ✓ |
| Multi-tenant SaaS platform model for partners | ✓ | ✗ |
| White-label partner model | ✓ | ✗ |
| ASSETS & SCALE | ||
| Utility-scale assets | ✓ | ~ |
| Larger C&I portfolios | ✓ | ~ |
| Residential and long-tail household assets | ✓ | |
| Aggregator-of-aggregators model | ✓ | ✗ |
| Multi-asset sites (PV + BESS + loads) | ✓ | ~ |
| INTEGRATIONS & CONTROL | ||
| Broad OEM/protocol integrations across asset types | ✓ | ✓ (BESS/solar focused) |
| Controller-based rollout for complex C&I sites | ✓ | ~ |
| Real-time site control and hybrid-site optimisation | ✓ | ~ |
| Portfolio dispatch and aggregation automation | ✓ | ✓ |
| REGULATORY & MARKET | ||
| Multi-TSO, multi-country European orientation | ✓ | ✗ (primarily Sweden) |
| Strong Swedish retail + balancing presence | ~ | ✓ |
| TIME TO VALUE | ||
| Typical time to first revenues | ✓ (1–6 months; TSO connection dependent) | ✓ (1–6 months; TSO connection dependent) |
WHERE FUSEBOX OS WINS
Fusebox is designed for larger portfolios and multi-country operations with repeatable processes across TSOs and products, rather than a single national retail segment.
Fusebox is a toolbox platform that utilities, aggregators, EPCs and partners can operate and white-label under their own brand and commercial model. This is a different approach from a packaged end-customer service where the provider owns the operational role.
Fusebox provides site-level EMS for PV, BESS and flexible loads, enabling real-time control, constraint-aware optimisation, and coordination across multi-asset sites.
Fusebox is built to connect to multiple TSOs and market products and to operate where the customer is BRP/BSP themselves or works with chosen trading partners, enabling expansion strategies beyond a single market.
Fusebox brings 11 years of operational experience and has integrated 100+ different asset types into tradable portfolios, reducing integration risk and improving deployment speed for complex fleets.
Fusebox is designed as a stable core layer between your infrastructure and best-of-breed vendors, with configurable modules and the option of committed development capacity when customer-specific extensions are needed.
WHERE CHECKWATT WINS
IDEAL CUSTOMER FIT BREAKDOWN
Who should choose Fusebox OS
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Utilities, BRPs/BSPs, aggregators, EPCs, IPPs and asset funds operating C&I and utility-scale portfolios across multiple countries.
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Organisations that want to own the flexibility business model and run EMS + VPP operations under their own brand with multi-tenant and white-label capability.
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Teams that need hybrid-site EMS depth, demand response, and multi-market orchestration across TSOs.
Who should choose CheckWatt
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Households, housing associations and small commercial/property owners in Sweden.
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Local partners serving that segment and wanting a packaged solution where the provider handles balance responsibility, electricity trading and operations.
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Organisations that are Sweden-centric and prioritise simplicity over multi-country platform ownership.
STRATEGIC POSITIONING ANGLE
CheckWatt is a strong choice for packaged BESS + solar aggregation aimed at Swedish households and small properties, where the provider can handle balance responsibility and trading as part of a turnkey offer. Fusebox OS is the EMS + VPP operational backbone for organisations building larger-scale and multi-country flexibility businesses: deeper hybrid-site EMS, broader asset coverage, multi-tenant and white-label capability, fast time-to-revenue, and a DIY architecture that keeps commercial control and vendor choice in the customer’s hands.
