Original sentence: At that time, it was only the second large-scale plant existing world-wide (the first being the Valle del Diavolo 'Devil's Valley' plant in Larderello, Italy opened in 1911).Several new plants and efficiency-enhancing second-stage equipment have been added since, though there is also some loss of steam generation due to the decade-long drawdown.The New Zealand Geothermal Association considers the procedures which are currently being adopted under the RMA as the single largest obstacle to further geothermal development, holding that "the regulatory process leads to long delays which impose a significant up-front cost on projects, reducing their financial viability".The Resource Management Act is the principal legislation controlling the use of geothermal resources in New Zealand
Edited sentence: At that time, it was only the second large-scale plant existing world-wide (the first being the Valle del Diavolo "Devil's Valley" plant in Larderello, Italy opended in 1911).Several new plants and efficiency-enhancing second-stage equipment has been added since, though there is also some loss of steam generation due to the decade-long drawdown.The New Zealand Geothermal Association has identified the procedures which are currently being adopted under the RMA as the single largest obstacle to further geothermal development, holding that "the regulatory process leads to long delays which impose a significant up-front cost on projects, reducing their financial viability".The Resource Management Act is the principle piece of legislation controlling the use of geothermal fluid in New Zealand