Deep Dives
Longer pieces on sizing, payback, technology and the questions homeowners keep asking us, regularly updated with our latest research so you are working from current numbers, not last year's.
- Independent & unbiased
- Updated regularly
- No sales pitch
How long will a home battery last in a power cut?
A 10 kWh battery typically powers essentials for roughly 36 to 60 hours, depending on usage and efficiency.
05/10/2026
Plug-in battery vs installed home battery: which makes more sense?
Plug-in batteries are cheaper, faster and portable; installed systems cost more but offer higher capacity and backup.
05/10/2026
How to choose a home battery: a step-by-step guide
Choosing a home battery means weighing capacity, installation type, technology, safety, warranty and lifespan, not price.
05/10/2026
Are there grants for home batteries in the UK?
While standalone battery grants are rare, regional schemes and zero-VAT rules significantly lower installation costs.
27/08/2026
Can you charge an electric car from a home battery?
You can charge an electric car from a home battery, though capacity limitations usually provide partial range.
19/08/2026
Do you pay VAT on a home battery in the UK? (0% VAT rule)
Qualifying UK home battery installations are currently VAT-free, offering significant upfront savings for homeowners.
18/08/2026
What size home battery do I need? (kWh explained)
Choosing the right home battery size depends on daily energy use, solar production, and household power goals.
17/08/2026
Whole Home Battery Backup: How Does It Work?
Whole home battery backup systems keep critical household appliances running seamlessly during grid power outages.
15/08/2026
Can You Use a Home Battery Without Solar Panels?
You can use a home battery without solar panels by charging cheap electricity from dynamic grid tariffs.
14/08/2026
How much does a home battery cost in the UK?
Home battery costs vary based on capacity, brand, and installation type, ranging from plug-in to fixed systems.
13/08/2026
How much can you save with a home battery in the UK?
A home battery saves money by storing solar power and charging during cheaper off-peak electricity hours.
10/08/2026
AI Smart Charging Explained for Home Batteries
AI smart charging optimizes battery usage based on local grid rules, tariff structures, and dynamic electricity prices.
14/07/2026