DC Muzen – A DC Residential Home
Current/OS Partners Involved:
Schneider Electric, DC Systems, Watt@Well
Location
Aalsmeer, The Netherlands
Setup
2026
Context
DC Muzen is a full-scale residential DC demonstrator developed by Harry Stokman to test how a Current/OS-based microgrid can support the electrification of a home in real-life conditions.
The project integrates solar generation, battery storage, EV charging, heating, lighting and household loads within a common DC architecture.
Beyond the home itself, it explores the technical, regulatory and ecosystem requirements for wider deployment and provides a first building block for the broader “Second Grid” concept.
Implementation
• 40 kW standalone DC microgrid, based on Current/OS and designed as a multi-vendor installation.
• 350 VDC distribution throughout the home, alongside an AC microgrid.
• 90 × 475 Wp photovoltaic panels, with one DC/DC converter per panel and approximately 30 MWh/year of solar production. The PV system is power-clamped to 27 kW.
• 114 kWh battery energy storage system directly connected to the DC distribution.
• 30 kW DC semi-fast EV charging, complemented by AC EV charging from the AC microgrid.
• Two grid interfaces: a 1 kW unidirectional interlink converter and an 11 kW bidirectional interlink converter.
• 12 kW geothermal water-to-water HVAC system, combined with low-temperature floor heating and approximately 100 kWh of thermal storage using phase-change materials.
• Six local 48 V distribution panels supplying PoE lighting, USB-C sockets, IoT devices and other low-voltage loads.
• Distributed energy management based on local devices and voltage signals, with no central EMS or cloud-based power control.
• The architecture is prepared for connection to a future Second Grid, extending the principles demonstrated in the individual home to a local Physical Energy Community.
Benefits
• Enables the home to be energy-neutral for approximately 350 days per year, according to project data.
• Reduces annual grid electricity consumption to an estimated 400 kWh, while supporting heating, household electricity and approximately 40,000 km/year of EV mobility.
• Reduces calculated annual energy-related CO₂ emissions from approximately 12,000 kg to 160 kg, based on the project methodology for heating, electricity and mobility. 260323 DC Muzen short-compressed
• Reduces calculated raw energy consumption from approximately 64 MWh to 0.67 MWh per year.
• Demonstrates how solar generation, electrical storage, thermal storage, EV charging and building loads can operate as one integrated local energy system.
• Uses local, distributed control rather than a central cloud-based EMS, reducing dependency on remote services for power management.
• Provides a real-world platform to test Current/OS interoperability, DC protection, solid-state protection, installation practices and multi-vendor integration.
• Establishes a practical building block for the larger Second Grid / Physical Energy Community, where shared DC infrastructure could support EV charging, community storage, solar generation and heating while helping relieve congestion on the existing AC grid.
Take a deep dive into DC Muzen with this 2-hour YouTube video
Quote
“DC Muzen is about proving that DC works in real life—and learning what it takes to scale it from one home to an entire community.”
Harry Stokman, DC Expert
DCIDE Reference Design
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