Energy guides written by the people who install the systems
Free, practical guides on battery storage, solar panels, smart tariffs and backup power — written by our engineers, not a marketing agency.
Free downloadable guides
Each guide is free to read. Enter your name and email to unlock the full content. You can also opt in to the Smart Energy Bulletin for monthly updates.
Home Battery Storage Buyer's Guide
Everything you need to know before buying a home battery — sizing, brands, costs, smart tariffs, installation, and the questions that save you from making an expensive mistake.
- How to size a battery correctly
- EcoFlow vs Sigenergy vs SolaX
- What 0% VAT applies to
- Smart tariff compatibility
Solar & Battery Planning Guide
A step-by-step planning guide covering site assessment, roof suitability, system design, permitted development rules, procurement and what to expect on installation day.
- Roof orientation and shading
- System sizing for your usage
- Planning permission rules
- Installation timeline
Smart Tariffs Explained
How Octopus Agile, Go and Intelligent tariffs work, what energy arbitrage actually means in practice, and how to configure your battery to maximise savings on each tariff.
- Octopus Agile half-hourly pricing
- Time-of-use tariff scheduling
- Energy arbitrage explained
- Real-world savings figures
Whole Home Backup Guide
What backup power actually means in practice — EPS mode, how long a battery lasts in a power cut, critical vs whole-home circuit design, and which systems genuinely deliver.
- How EPS mode works
- Realistic battery duration
- Critical vs whole-home backup
- What to expect during a power cut
Commercial Solar Guide
The complete guide for business owners and commercial property managers — ROI calculation, ESG credentials, grid constraints, procurement routes and financing options.
- Commercial ROI and payback
- ESG and sustainability reporting
- Grid capacity and G99 constraints
- Finance and procurement routes
The Omni3 Smart Energy Bulletin
Each month we publish a short, practical email covering energy price movements, smart tariff changes, government incentives, battery technology updates and seasonal energy-saving advice. No sales content — just useful information.
More tools in development
We are building a suite of interactive tools to help you plan, calculate and manage your energy systems. Join the Smart Energy Bulletin to be notified when they launch.
Battery Savings Calculator
Enter your tariff, battery size and usage pattern to see projected annual savings.
Coming soonEnergy Independence Calculator
See how much of your electricity you could generate and store yourself.
Coming soonInteractive Product Selector
Answer 5 questions and we will recommend the right battery system for your home.
Coming soonCustomer Portal
Log in to view your installation, monitoring data and support history.
Coming soonReferral Programme
Refer a friend and earn a reward when their installation completes.
Coming soonWebinar Registration
Live Q&A sessions with our engineers on solar, battery storage and smart tariffs.
Coming soonReady to move from research to action?
Book a free home energy review — no obligation, no sales pressure.