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

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Fixed, Capped and Variable Tariffs: Which Ones a Home Battery Can Use

Fixed, price-capped and time-varying tariffs give a home battery very different amounts to work with. Here is how to match tariff type to battery.

25/09/2026

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LFP versus NMC chemistry in home batteries

LFP and NMC are the two common lithium-ion chemistries in home batteries. Here is how they differ on density, stability and cost, and what still matters.

22/09/2026

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Why Britain Kept One National Electricity Price: Zonal Pricing Explained

What zonal pricing is, why the UK government rejected it in July 2025, and what reformed national pricing means for storage and tariffs.

20/09/2026

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Home battery, home insurance and mortgage: what to tell whom

Who needs to know about a home battery? Your insurer, possibly your lender, your network operator and others. What we could confirm, and what we could not.

17/09/2026

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When Net Metering Ends: What the Dutch Change Shows About Export Payments

How net metering differs from paying for exports, what changes in the Netherlands on 1 January 2027, and why it makes home batteries more relevant.

14/09/2026

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Where to put a home battery in the house: garage, loft, utility room

PAS 63100 prefers outdoor siting and sets rules for indoor spaces. Here is what it says about garages, lofts, utility rooms and rooms to avoid.

11/09/2026

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Virtual Power Plants Explained: How Aggregators Use Home Batteries

What a virtual power plant is, how an aggregator controls many small batteries together, and what to check before you sign up to one.

09/09/2026

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Smart Export Guarantee for Battery Owners: What It Pays For and What It Does Not

The Smart Export Guarantee pays for electricity you export, mainly from solar. See how it applies to home battery owners and what to ask a supplier.

06/09/2026

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Why Gas Often Sets the Price of Electricity: Marginal Pricing Explained

How the wholesale electricity price is set in Britain, why gas often decides it, and what rising wind and storage could change.

03/09/2026

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G98 and G99 Explained: Connecting a Home Battery to the UK Grid

G98 means notify the network operator after installing; G99 means ask first. See how each route applies to home batteries.

31/08/2026

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Grid Congestion and Wind Curtailment: Why Britain Pays to Switch Wind Off

Why wind farms in Scotland are sometimes paid to turn down, what constraint costs are, and why storage and grid upgrades are part of the answer.

29/08/2026

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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