How much is your
generator costing you?

ADR (Agreement on Dangerous Goods by Road) is a European regulation governing the transport of hazardous materials — including large lithium battery systems. Most BESS on the market require ADR-compliant transport: specialist vehicles, trained drivers, paperwork. This adds cost and complexity every time the system moves.

Allye's systems are specifically designed so that transport does not trigger ADR requirements, meaning they can be moved using standard vehicles and drivers. This is a significant operational advantage for construction sites where the BESS needs to follow the project.

The BESS charges from whatever power is available — grid connection, solar, or even the generator itself (in hybrid mode). On a site with a grid connection: the BESS charges overnight at off-peak rates, then powers the site all day. On a fully off-grid site: a much smaller generator runs at a constant, efficient load to keep the BESS charged — the BESS handles all the peaks and variable loads. Typical charge time: 4–8 hours depending on system size and charge rate.

Yes — Allye systems use Lithium Iron Phosphate (LFP) chemistry, which has a significantly higher thermal stability threshold than other lithium chemistries. LFP doesn't undergo thermal runaway in the same way as NMC or NCA cells. All Allye units include a Battery Management System (BMS) that monitors cell temperature, state of charge, and health in real time, cutting power if anything goes wrong.

UK guidance from the NFCC recommends a 10-metre separation distance for larger BESS deployments. Engage your local Fire and Rescue Service for larger installations. Standard BS 7671 electrical connection requirements apply.

The system is sized to prevent this — your BESS energy capacity is calculated with a margin above your expected daily load. The Battery Management System will warn you well before reaching the lower discharge limit. In hybrid mode, the generator kicks in automatically to recharge before this point. For full-replacement mode, standard practice is to charge the BESS overnight so you start each shift with a full battery.

Yes. This is one of the strongest use cases for BESS. A tower crane's hoist motor might draw 150–250 kW for a 30-second lift, but averages just 10–15 kW across a shift. A conventional generator has to be sized for the peak — meaning it runs at 5–10% load most of the day, burning fuel and wet-stacking. A BESS stores energy during the idle periods and discharges it instantly for each lift. This is called peak-shaving and it's where the numbers get interesting.

Much less than a generator. No engine oil, no fuel filters, no cooling water, no exhaust systems. LFP battery cells are highly stable and the main maintenance tasks are: software/firmware updates (remote), periodic visual inspection, connection checks, and thermal management system servicing. Allye provides remote telemetry and monitoring as standard. Typical O&M cost: 1.5–2% of installed cost per year.