Page speed for solar websites

Speed is the least glamorous item on any website list and one of the few with a direct, measurable effect on enquiries. A visitor who leaves before your page renders has not judged your company at all.

Which speed metrics actually matter?

The third is the one people underestimate. A page where the content shifts as images load causes mis-taps, and on a form that means a visitor tapping the wrong field and giving up. It is also trivially fixable by setting image dimensions.

Why are solar sites slow?

1. 01Uncompressed install photos. The most common cause by a distance. A phone photo straight from the camera can be several megabytes, and a gallery of them is a page nobody waits for.
2. 02A video hero. Beautiful on a desktop, and it delays the first meaningful paint on a phone by seconds.
3. 03Too many third-party scripts. Chat widget, two analytics tools, a heatmap tool, a review widget, three ad pixels. Each one costs.
4. 04Page builder bloat. Some builders ship enormous stylesheets and scripts for a page with four sections on it.
5. 05Fonts. Four families in six weights, loaded before anything renders.
6. 06Cheap hosting. Slow server response delays everything that follows, and no front-end fix compensates for it.

The five fixes worth doing

1. 01

   Compress and resize every image

   Nothing wider than about 2,000 pixels, served in a modern format, with width and height set in the markup. This single change fixes most solar sites, and it also fixes layout shift.

2. 02

   Lazy load everything below the fold

   Images further down the page should not compete with the content somebody is actually looking at.

3. 03

   Cut third-party scripts

   Keep analytics and your conversion tracking. Question everything else, and be particularly suspicious of any widget nobody monitors. See solar website mistakes.

4. 04

   Replace the video hero with a still

   Use a real photograph of one of your own installs. It loads instantly and, for a trade purchase, it is more persuasive than a stock drone shot.

5. 05

   Check the hosting

   If server response time is over about 600 milliseconds, no amount of front-end work will get you where you need to be.

Speed costs you twice

A slow solar site loses organic visitors before the content appears. It also raises what you pay for paid traffic, because landing page experience feeds quality scoring, and a poor score means a higher cost per click for the same position.

At solar click prices, that second effect alone can justify a day of image compression. See solar Google Ads cost per lead.

How far should you take it?

Far enough to pass the thresholds on a real phone, and then stop. Chasing a lab score from 92 to 97 is engineering theatre; getting from 34 to 80 is worth a day.

Use real-user data where you have it rather than a synthetic score, because that reflects the devices and connections your visitors actually have. And re-check quarterly: sites get slower on their own as people add widgets, and nobody notices until enquiries dip.

Keeping it fast once it is fast

Sites do not stay fast on their own. They get slower one reasonable decision at a time: a review widget in March, a chat tool in June, a gallery of uncompressed install photos in September.

1. 01

   Set a rule for images

   Nothing goes on the site straight from a phone. Resize and compress first, every time. Whoever adds photos needs this to be a habit rather than a policy.

2. 02

   Question every new script

   Before adding a widget, ask what it will do that justifies the load cost, and who will monitor it. Most widgets fail the second question.

3. 03

   Re-test quarterly

   On a real phone, on mobile data. Put it in the same quarterly slot as the rest of the SEO checks. See the solar company SEO checklist.

4. 04

   Watch enquiries, not just scores

   A sudden dip in form submissions with no change in traffic is often a speed or layout regression rather than a marketing problem.