In other words, that's a 125MW plant, 5 times lower capacity than the new Indian one. https://lmgtfy.com/?q=1100+GWh%2Fyear+in+MW
Can you explain how it's relevant for this story context? For comparison, a typical coal power plant is 500MW. The new Indian plant is a real first step toward coal capacity replacement.
EDIT: BTW, the article cites Topaz's nominal (or max?) capacity at 550MW; that means its real capacity is 4-5 times lower. I didn't even realize the turndown due to sunlight (un)availability was so high.