Industrial sites face the energy transition with a different set of constraints from commercial properties. This is a practical account of the five decisions that determine whether the programme succeeds.
Industrial sites -- manufacturing, logistics, food processing, data centres -- have energy profiles that make the transition both more urgent and more technically demanding than for most commercial properties. High continuous loads, process-critical power quality requirements, and limited tolerance for generation variability all require a more considered approach than a standard commercial installation. Here are the five decisions that matter most, in the order they should be made.
Industrial sites often operate at or near their grid connection capacity. Adding significant on-site generation requires a protection study and, in many cases, a new grid connection agreement with the DNO. This is the first decision because it has the longest lead time -- up to 18 months in constrained areas of the UK distribution network -- and because the available generation capacity is constrained by what the connection can accommodate.
Getting a pre-application enquiry to the DNO at the outset, before any generation technology is specified, avoids the most expensive mid-project design change: discovering that the proposed generation capacity exceeds the available export headroom.
Industrial loads are not homogeneous. A site with a 2 MW grid connection and an average consumption of 1.2 MW/h may have a 3-second peak demand of 2.5 MW during a motor start sequence. On-site generation and storage that is not aware of this peak cannot prevent it from registering on the demand meter.
The consumption analysis for an industrial site must go beyond monthly kWh totals. Half-hourly interval data from the smart meter is the minimum. For process-critical applications, sub-minute metering of the highest-demand loads is needed to size the battery correctly for demand charge reduction.
The appropriate generation technology depends on three site-specific factors: available area, wind resource, and load profile timing. Industrial sites typically have large roof areas, making solar the first consideration. Wind generation is complementary where the site has a good wind resource -- the two technologies have naturally offsetting seasonal and diurnal profiles.
For industrial sites in Northern Europe, wind generation is more valuable than the annual headline figures suggest, because it produces most in winter -- when electricity prices and demand charges are typically highest. A combined solar and wind installation produces a flatter annual generation profile than either alone, which reduces the storage requirement for a given self-consumption target.
Industrial storage requirements differ from commercial ones in two ways. First, the power requirement -- the rate at which the battery can charge and discharge -- is more important than capacity alone. A site with large motor loads needs a battery that can respond in milliseconds, not seconds. Lithium iron phosphate (LFP) chemistry, which all HNordic systems use, handles the power requirement of most industrial applications.
Second, industrial sites may have mandatory backup power requirements for safety systems. The battery storage specification must account for these as a separate load from the demand-charge and self-consumption application.
Industrial energy management does not stop at commissioning. Process changes, new equipment, shift pattern changes, and seasonal variations all change the consumption profile that the storage and generation systems were sized against. A site whose energy management system is not monitored and periodically recalibrated will gradually drift from its optimised state.
AI-managed systems reduce the manual effort required -- they observe consumption changes and adapt -- but they do not eliminate the need for periodic review. An annual energy review that compares actual against projected performance and identifies any recalibration requirements is a minimum for a well-managed industrial installation.
See also: Battery storage · Vertical wind technology · Services · Contact HNordic