Perplexity surfaces content based on what it crawls and indexes, so negative sentiment in answers usually means negative sources (review sites, forums, Reddit threads) are ranking higher in its training data or source selection than your own content. You can't directly edit Perplexity's index, but you can shift what it sees.
First, audit what's actually appearing. Search Perplexity for queries like "solar installation company reviews" and "residential solar installer reliability"—note which sources are cited and their tone. Compare that to what ranks in Google Search for the same terms. If negative third-party reviews dominate Perplexity but your site ranks well in Google, Perplexity is pulling from older or broader web crawls.
Second, create authoritative counter-content on your own domain: case studies with measurable outcomes (system efficiency, cost savings, customer testimonials with specifics), a detailed FAQ addressing common objections (warranty coverage, installation timelines, ROI calculations), and schema markup for LocalBusiness with aggregated ratings. This gives Perplexity fresher, fact-dense material to cite.
Third, encourage satisfied customers to post reviews on platforms Perplexity crawls frequently—Google Business Profile, industry directories, and Trustpilot. These accumulate faster than you can influence older negative threads.
Check progress in two weeks by running the same Perplexity searches. If citations now include your case study pages or newer reviews alongside older complaints, the strategy is working. Perplexity typically re-crawls major sites monthly, so improvements compound.