Catalyst with Shayle Kann

The rise of permissionless DERs

Jan 29, 2026
James McGinniss, founder and CEO of David Energy, builds plug-in distributed energy systems for homes and small businesses. He explains why simple plug-in batteries and balcony solar can slash soft costs and scale fast. They discuss regulatory gray areas, Germany’s rapid adoption, commercial demand‑charge savings, and future appliance-integrated storage.
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INSIGHT

Plug-In Versus Permissionless

  • Plug-in is a more intuitive term than permissionless for consumer-facing products.
  • Permissionless covers a broader set of technologies that reduce interconnection friction.
INSIGHT

Outlets Are Ready-Made Interconnects

  • Standard 120V/240V outlets act as pre-existing bi-directional interconnection points.
  • Using outlets avoids panel work and greatly reduces installation complexity and cost.
INSIGHT

Regulation Is Murky But Safety Rules Exist

  • The regulatory landscape for plug-in exports is murky but safety standards exist.
  • UL and NEC provide a pathway for many plug-in products to be sold and used today.
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