Core Web Vitals in energy and utilities: 165 domains measured
By Christian Schreiber · Updated
Utility sites are rarely opened out of interest. People arrive because of a tariff, an outage or a meter reading, with a concrete task and little patience.
For Core Web Vitals, energy and utilities ranks 14th of 18 industries, behind food and restaurants, ahead of online retail. All medians stay within Google's thresholds, closest to the limit is LCP at 2185 ms against 2500 ms.
Core Web Vitals in energy and utilities
41 percent of the 165 domains measured in this industry pass all three Core Web Vitals with real user data.
| Metric | Industry median | Middle half of the industry | Google threshold |
|---|---|---|---|
| LCP | 2185 ms | 1612 ms – 3111 ms | 2500 ms |
| INP | 138 ms | 98 ms – 196 ms | 200 ms |
| CLS | 0.02 | 0.00 – 0.09 | 0.10 |
Thresholds, sample sizes and anonymisation are explained under Core Web Vitals by industry.
Energy and utilities against every measured domain
| Group | LCP | INP | CLS |
|---|---|---|---|
| Energy and utilities | 2555 ms | 165 ms | 0.08 |
| PerfDelta average (5748 domains tested) | 1977 ms | 144 ms | 0.04 |
Three measurements from energy and utilities
Faster quarter, median and slowest quarter, anonymised and rounded.
| Position | LCP | INP | CLS | Mobile score | Platform |
|---|---|---|---|---|---|
| Best quarter | 1600 ms | 150 ms | 0.00 | 55 | – |
| Typical | 2200 ms | 100 ms | 0.03 | 30 | – |
| Slowest quarter | 3100 ms | 300 ms | 0.01 | 30 | – |
What usually slows energy and utilities down
Tariff calculators are the largest item: they bring their own framework and often start on page load although the visitor has to enter a postcode first. Customer portal platforms ship their base bundle on every page. A calculator that loads on interaction and a base bundle cut per page type have the strongest effect here.
Which energy and utilities pages to test first
The tariff calculator, the outage page and the meter reading form carry most visits. Test the tariff page with its calculator and the outage or status page, which gets sudden peaks of mobile traffic when something goes wrong. A page speed test cannot reach customer portals behind a login.
Which metric is at risk in energy and utilities
INP is at risk wherever the tariff calculator reacts to postcode and consumption entries. LCP suffers from large header images of wind farms or solar roofs and from consent layers that render first. Layout shifts appear when tariff results or price boxes show up above the content after a delay.
Step-by-step fixes: Website Speed Optimization.
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