Structured Retrofit Delivery

Coordinated, storage-led deployment across occupied housing portfolios.

Retrofitting occupied housing requires coordination.

Portfolio-scale deployment across existing housing stock introduces constraints:

  • Tenant occupancy
  • Electrical capacity variation
  • Roof condition variability
  • DNO export limitations
  • Programme scheduling complexity

Delivery must be sequenced, not opportunistic.

Glow Collective structures retrofit as a coordinated infrastructure programme rather than a series of isolated installations.

Structured deployment framework

  1. Portfolio Assessment
    Baseline modelling and electrical suitability review.
  2. Standardised System Design
    Application of the controlled 6kW + 10kWh architecture.
  3. Coordinated Installation
    Clustered sequencing to reduce disruption and DNO exposure.
  4. Monitoring & Governance
    Ongoing performance oversight at the portfolio level.

Each stage operates under conservative modelling assumptions.

Minimising disruption.

Deployment across occupied homes requires:

  • Clear communication sequencing
  • Defined installation windows
  • Electrical safety verification
  • Standardised commissioning procedures

The storage-led model prioritises tenant self-consumption before export.

No behavioural change is required for baseline benefit.

Grid capacity is assessed before deployment.

Retrofit sequencing considers:

  • Existing supply headroom
  • Export limitation requirements
  • Clustered DNO application timing
  • Reinforcement exposure risk

Export is governed under 3.68kW limitation.

Infrastructure discipline reduces escalation risk.

Deployment differs by context.

In retrofit environments:

  • The existing roof structure is assessed
  • Electrical upgrades may be required
  • Installation scheduling must accommodate occupancy

In new build integration:

  • PV can replace tile coverage
  • Electrical design can be pre-coordinated
  • Cost efficiency improves through early specification

Glow Collective supports both pathways under the same baseline architecture.

Infrastructure delivery within existing communities requires coordination, not acceleration.

Structured sequencing protects tenants, protects grid capacity, and protects long-term programme viability.