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2026 Rankings

Best Solar Installers in Penrith

Compare the top solar installers in Penrith & Sydney, NSW — ranked by our composite reputation score.

Updated August 2026 · Based on 4,274 real Google reviews across 36 solar installers

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Top Solar Installers in Penrith & Sydney, NSW

The best solar installers in Penrith, NSW are Clean Earth Solar (5.0★, 249 reviews), E-Smart Solar Pty Ltd (5.0★, 210 reviews), MKG Electrical Pty Ltd (5.0★, 155 reviews), Hot H2o (4.9★, 138 reviews) and Nepean Solar Solutions (4.9★, 135 reviews). Each is ranked by an independent reputation score from real Google reviews (4,274 reviews analysed across 36 businesses) — see the full top 36 below. Rankings last updated August 2026.

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Frequently Asked Questions

Common questions about solar installers in Penrith.

Who are the best solar installers in Penrith?

We've ranked the top 36 solar installers in Penrith, NSW based on our composite reputation score combining Google ratings, review volume, and online presence. Our rankings are updated daily.

How do you rank solar installers in Penrith?

Each business gets a reputation score out of 100 from three things: its Google star rating (up to 47 points), how many reviews back that rating (up to 35), and whether customers can reach it via a website and phone number (up to 18). Review volume is the one part that can subtract: below 15 reviews it costs points, because a near-empty review record gives a stranger very little to go on. No score falls below 0, nothing else is counted, and placement cannot be bought. The score measures the strength of a business's public review record rather than the quality of its work, so it is worth reading the reviews as well — every listing links to them on Google.

Why does a solar installer with all 5-star reviews score lower than one with a lower rating?

Because review volume counts as well as rating, and below 15 reviews it counts against you. Five perfect reviews are encouraging but thin evidence; three hundred reviews averaging 4.7 tell a stranger far more about what to actually expect on the day. That is a judgement about how much proof exists, not about the quality of the work, and a newer business with a handful of excellent reviews may still be the right choice. The star rating and review count sit next to every score so you can weigh both yourself.

Why does the same business not appear several times?

Some businesses run more than one Google listing, often one per suburb they service. Those are the same company, so we group them and show the business once, using the listing with the strongest review record.

How many solar installers are there in Penrith?

We track hundreds of solar installers across Penrith and the wider NSW area. This page shows the top 36 based on their online reputation.

How can I improve my solar installer business ranking in Penrith?

The best way to improve your ranking is to consistently collect genuine customer reviews. Businesses that actively manage their online reputation typically see 2-3x more enquiries. Tools like Starworks can automate this process.

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