Blog

Guides and explainers

Short, practical pieces from the people who size and install these systems.

A step-by-step way to add up your loads, allow for start-up surge and pick the hours of backup, with a worked example for a small shop.

Maintenance, weight, heat, cycle life and price: what changes at a real site when a lead-acid backup is replaced by sodium-ion, and what does not.

What to ask any supplier of a UPS or storage system: make and model, usable capacity, surge rating, warranty terms, installation and support.

Why solar panels alone switch off when the grid fails, how a hybrid system with a battery keeps the essentials running, and what to expect.