The diagram below shows the market for high-performance electric bicycles. Originally, the market is in equilibrium with supply curve S1 S_1\,S1 and demand curve DDD. Following a breakthrough in battery manufacturing technology, the supply curve shifts to S2S_2S2.

Calculate the increase in consumer surplus resulting from this technological breakthrough.
£90,000£90,000£90,000
£112,500£112,500£112,500
£135,000£135,000£135,000
£202,500£202,500£202,500