Guides & insights
Plain-English guides to the economics, tax, and engineering of commercial battery storage.
Using battery storage to beat a grid-connection constraint
How a behind-the-meter battery lets a constrained site add load without a costly DNO reinforcement.
- grid connection
- DNO
- capacity
How Does Commercial Battery Storage Work? A Plain Guide
How a commercial battery energy storage system works, what it is made of, and how big a battery your business needs — explained simply for decision-makers.
- battery storage
- commercial
- guide
Is Battery Storage Worth It for Business? The Honest Numbers
Is commercial battery storage worth it in 2026? A worked, independent answer with real cost, saving and payback numbers, not the vague non-answer competitors give.
- battery storage
- commercial
- guide
Best Commercial Battery Storage: How to Choose (2026)
How to choose commercial battery storage in 2026 — an independent buyer’s guide to chemistry, sizing, value streams, warranties and avoiding supplier-locked quotes.
- battery storage
- commercial
- guide
Battery storage VAT and capital allowances for business
The facts on commercial battery VAT (standard-rated but fully recoverable) and exactly which capital allowances a UK business battery qualifies for.
- VAT
- tax
- AIA
Peak shaving and red-band DUoS: cutting your priciest units
How a battery shaves the weekday peak to cut red-band DUoS, kVA charges and 25-45p/kWh peak units.
- peak shaving
- DUoS
- demand charges
Commercial battery storage payback in 2026: a worked example
A step-by-step worked payback for a commercial battery in 2026, from half-hourly data to IRR.
- cost
- payback
- ROI
Which Grid Revenue Markets Can a Business Battery Enter?
A market-by-market walkthrough for UK business batteries: Capacity Market, NESO frequency response, the Balancing Mechanism via P415, and the DFS, with entry requirements for each.
- revenue stacking
- grid services
- flexibility