UK STATUS5 hosepipe bans in force·Reservoirs 82.9%·4 areas in prolonged dry weather·NRR: power outage rated catastrophicUpdated 18 Jul 2026
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2026 edition · updated

The National Risk Register 2026, explained for households

Every couple of years the Cabinet Office publishes its assessment of the most serious risks facing the UK. Here's what the 2026 edition highlights — and, calmly, what it means for your home.

Read this the right way
These are low-likelihood risks the government plans for — not predictions. The sensible response is the same modest checklist for all of them: water, light, a way to charge a phone, some food. That's preparation, not panic.

National power outage

Catastrophic (5/5)
Likelihood (5 yrs)1-5%
Reasonable worst caseFull GB restoration beyond 7 days
Prepare for a power cut

Water infrastructure failure

Catastrophic (5/5)
Likelihood (5 yrs)5-25%
Reasonable worst case1M+ lose piped water; repairs take months
Water storage & filtering

What a household can actually do

The government's own Prepare campaign answers this, and it's refreshingly ordinary: keep a few days of water and food, a torch and a power bank, a battery radio, and a small grab bag. Our two-minute tool sizes it to your household.

Common questions

What is the National Risk Register?

It's the public version of the government's National Security Risk Assessment — the Cabinet Office's own assessment of the most serious risks that could affect the UK, with each risk's likelihood and potential impact. The 2026 edition was published in July 2026.

Should I be worried about the risks in it?

No — the point isn't fear, it's preparation. Most listed risks are low-likelihood, and the government's own advice is the same calm, practical checklist we follow: store some water, keep a torch and power bank, have a few days of food. The register simply explains why those sensible habits are worth having.

How likely is a national power outage?

The National Risk Register 2026 rates a national electricity failure as low-likelihood but high-impact. Household preparedness for a power cut — light, a way to charge a phone, warm layers, some food that needs no cooking — is proportionate regardless of the exact odds.

Source: National Risk Register 2026 (Cabinet Office, 14 Jul 2026). Figures are the government's own reasonable-worst-case planning assumptions, not forecasts. PreparedBritain is independent and not affiliated with HM Government.

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