The push for net zero carbon is creating new fire safety challenges — from combustible insulation to battery storage. We examine the tensions and how to resolve them.. The Green Safety Tension The race to net zero carbon is creating conflicts with fire safety: Insulation High performance insulation materials are often combustible PIR, phenolic, and EPS provide excellent thermal performance but contribute to fire load Non combustible alternatives (mineral wool) have lower thermal performance Airtightness Airtight buildings can trap smoke and toxic gases Mechanical ventilation with heat recovery (MVHR) can distribute smoke Fire dampers in MVHR systems add cost and maintenance burden Solar Panels PV panels on roofs create firefighting access challenges DC current remains live even when AC supply is isolated Arc faults in PV systems can cause fires Battery Storage Domestic battery storage (Tesla Powerwall etc.) introduces lithium ion risk Community battery storage in basements or plant rooms Thermal runaway propagation in multi battery installations Resolving the Tension Fire safety and sustainability are not mutually exclusive. Solutions include: 1. Non combustible insulation systems that achieve net zero targets 2. Intelligent MVHR design with fire mode shut down 3. PV system access paths designed into roof layouts 4. Battery storage rooms with dedicated ventilation and suppression For net zero fire engineering, contact Magnus Opifex.