{"schemaVersion":"report-figure-v1","report":{"slug":"solar-heat-penalty","title":"The Heat Penalty: What Warming Does, and Does Not Do, to Solar Yield","url":"https://solaranalytica.com/solar-heat-penalty","datePublished":"2026-04-16","lastReviewed":"2026-04-16"},"figure":{"id":"static-heat-tax","title":"The static heat tax. PERC vs HJT annual loss, sorted, plus the set average","unit":"%","valueLabel":"PERC heat loss","valueBLabel":"HJT heat loss","caption":"Annual output lost to cell temperature: PERC (grey) against HJT (blue), per market. Solar Analytica yield model on NASA MERRA-2 and CERES; full figures in the table below.","series":[{"label":"Bamako, Mali","value":14.3,"valueB":9.8},{"label":"Jodhpur, India","value":14.3,"valueB":9.8},{"label":"São Paulo","value":11.1,"valueB":7.6},{"label":"Seville","value":11.1,"valueB":7.6},{"label":"Perth","value":9.9,"valueB":6.8},{"label":"Berlin","value":7.1,"valueB":4.9},{"label":"Helsinki","value":5,"valueB":3.4},{"label":"Reykjavik","value":4.4,"valueB":3},{"label":"40-market average","value":9.8,"valueB":6.7,"average":true}]},"csv":"https://solaranalytica.com/reports/solar-heat-penalty/figures/static-heat-tax/data.csv","publicationState":"fixed-edition","boundary":"The figure remains bound to the report edition. A newer upstream release creates a review obligation and never rewrites these rows automatically."}