UK businesses wasted an estimated £3.2 billion on avoidable energy use last year. Most of it was caused by behaviour, scheduling, and operational drift - not a lack of investment. Here is the zero-capex playbook.
Why do so many businesses jump straight to spending money on energy kit?
Before fixing the things that cost nothing. Before understanding what is actually happening in their buildings. Before establishing a baseline that would tell them whether any investment is working.
UK businesses wasted an estimated £3.2 billion on avoidable energy use last year. Most of it was caused by behaviour, scheduling, and operational drift - not a lack of investment. The kit was fine. The controls were wrong. The schedules were outdated. The habits were expensive.
This is the zero-capex playbook. The things you can do before spending a pound on new equipment.
1. Fix your out-of-hours demand first
Out-of-hours energy use is the fastest place to find savings without capital expenditure. If your buildings are not going quiet overnight, at weekends, or between shifts, your bills will not either.
The most common culprits: HVAC systems running on outdated schedules, lighting left on in empty areas, IT equipment with no load management, refrigeration running inefficiently with no monitoring.
None of these require capital. They require visibility and discipline. Enerlyse monitoring gives you the visibility. Your operations team provides the discipline.
2. Review your procurement - properly
Most organisations renew energy contracts without a competitive tender. The same broker, the same supplier, the same hidden commission structure. The contract looks similar to last time. The unit rate has gone up, but energy prices have gone up, so it feels normal.
It is not normal. A properly run procurement process - independent, transparent, going to the whole market - typically saves 10-25% on the commodity element of your bill. That is not a capital project. That is a process change.
Through Baseline Power, we go to market on your behalf with full transparency on what you pay and why. No hidden commissions. No supplier lock-in.
3. Check your bills for errors
Invoice validation is unglamorous. It is also consistently productive. Billing errors are more common than most organisations realise - incorrect tariff rates, wrong meter readings, duplicate charges, VAT applied incorrectly.
We validate every invoice against contract terms, tariff rates, and actual consumption data. We manage disputes with suppliers on your behalf. The savings are real and immediate, and the cost of the process is typically covered many times over.
4. Optimise your controls before replacing equipment
Building management systems accumulate overrides. Schedules get changed for one-off events and never changed back. Setpoints drift. Sensors fail and nobody notices because the system compensates by running harder.
A controls audit - reviewing what your BMS is actually doing versus what it should be doing - often surfaces savings of 10-20% with no capital outlay. Before you replace the HVAC system, find out if the existing system is being run correctly.
5. Understand your power factor
Power factor correction is often oversold. But for organisations with significant inductive loads - motors, compressors, refrigeration - poor power factor means you are paying for reactive power that does no useful work.
A power factor assessment costs very little. If correction is warranted, the payback is typically fast. If it is not warranted, you have saved yourself from an unnecessary capital project.
The zero-capex ceiling
The zero-capex playbook has a ceiling. Behavioural changes, controls optimisation, procurement improvement, and invoice validation will take you so far - typically 15-25% reduction in energy costs. Beyond that, you need capital investment.
But the zero-capex work does two things that make the capital investment easier. First, it reduces the baseline, which means the capital projects are smaller and cheaper. Second, it generates savings that can fund the capital projects - either directly or through financing arrangements that are serviced from the savings.
The cheapest source of capital is the energy you are wasting. The zero-capex playbook is how you release it.
Next Step
Want to find the zero-capex savings in your buildings?
Our Out-of-Hours Waste Hunt identifies hidden waste in 2 weeks and gives you a practical 12-month action plan - starting with the things that cost nothing.