BESS retrofit

Add battery storage to your existing solar PV.

Already have commercial solar panels? Novalux retrofits battery energy storage systems to existing installations, dramatically improving your returns and energy independence.

A row of Dyness BF100 battery cabinets with hybrid inverters, retrofitted by Novalux beside a commercial building

Dyness BF100 cabinets with hybrid inverters — a Novalux retrofit on a working commercial site.

The process

Five stages, all managed by Novalux.

  1. 01

    Desktop review.

    Review of your existing system docs, inverter specs and half-hourly meter data.

  2. 02

    Financial model.

    25-year cashflow with payback period, NPV and annual savings for each battery size option.

  3. 03

    Grid & compliance.

    We handle G98/G99 notifications, protection relay requirements and DNO interaction.

  4. 04

    Installation.

    NICEIC-accredited team installs battery modules, inverter/charger and monitoring in 1–3 days.

  5. 05

    Commissioning.

    BESS configured to your tariff and demand profile. Remote monitoring and Nova AI active from day one.

System scale

Sized to your array.

AC-coupled retrofit.

Suitable for solar systems up to 200 kWp.

Commercial system.

Suitable for 200–750 kWp solar arrays.

Containerised BESS.

Industrial and large commercial applications.

Outcomes

What a retrofit changes.

  • Self-consumption improved from around 40% to 70–85%.
  • Peak demand shaving to reduce capacity charges on half-hourly metered sites.
  • Grid services revenue (Dynamic Containment) for larger systems.
  • Backup power for critical loads during grid outages.
  • Reduced Scope 2 carbon emissions for ESG reporting.
  • Up to 100% year-one tax relief on qualifying plant via capital allowances.

Find out if your solar is ready for a BESS retrofit.

Send us your system details — a Quick Quote with financial modelling within 24 hours.

quick quote in 24hrs · full proposal within 5 days of survey