(1) The solar tiles aren't actually on the chart. If they were, they'd have to extend the scale more than twice as wide as what's shown, out to past $40 per square foot based on their calculator.
(2) The bar that is on the chart is for their "non-solar" tiles, plain glass squares. That's the one that's twice as long as the bar for asphalt tiles.
The solar glass tiles are actually more like 10x the cost of asphalt shingles, including installation.
(1) The solar tiles aren't actually on the chart. If they were, they'd have to extend the scale more than twice as wide as what's shown, out to past $40 per square foot based on their calculator.
(2) The bar that is on the chart is for their "non-solar" tiles, plain glass squares. That's the one that's twice as long as the bar for asphalt tiles.
The solar glass tiles are actually more like 10x the cost of asphalt shingles, including installation.