据世界天然气1月15日消息，芬兰科技集团瓦锡兰(W?rtsil?)已与巴西签署合同，将该国一家发电厂改造为100%天然气发电，同时将发电量从85兆瓦提高至92兆瓦。
瓦锡拉表示，与里约亚马逊能源公司(RAESA)的合同是针对巴西马瑙斯的克里斯蒂亚诺罗恰发电厂，该合同已于2019年11月签署。
除了将电厂转换为天然气发电之外，两家公司还签署了一份长期服务协议，以保证电厂的性能。
此次改造包括将现有的5台瓦锡兰46GD双燃料内燃机转换为5台瓦锡兰50SG燃气发动机和额外需要的通用系统升级。
电厂性能的改善将提高RAESA延长现有电力购买协议(PPA)的可能性，该协议将于2025年到期。根据PPA，该公司被授权为该国电网提供电力。
电厂目前租用额外的发电机，以确保足够的发电量，在改造完成后，这笔费用将被免除。
该改造计划预定于2021年上半年完全完成。
裘寅 编译自 世界天然气
原文如下：
W?rtsil? to convert Brazilian power plant to natural gas
The Finnish technology group W?rtsil? has been contracted to convert a Brazilian power plant to 100 percent natural gas operation, while at the same time increasing output from 85 MW to 92 MW.
The contract with Rio Amazonas Energia (RAESA) is for the Cristiano Rocha power plant in Manaus, Brazil, and was signed in November 2019, W?rtsil? said.
In addition to the conversion, the two companies have signed a long-term service agreement with power plant performance guarantees.
The conversion will involve converting the existing five W?rtsil? 46GD dual-fuel combustion engines to five W?rtsil? 50SG gas-fueled engines and the additionally required common system upgrades.
The improved plant performance will enhance RAESA’s possibilities for extending its existing Power Purchase Agreement (PPA) which is set to expire in 2025. Under the PPA, the company is contracted to supply energy to the national grid.
The plant currently rents additional generators to ensure adequate output, and this cost will be eliminated when the conversion is completed.
The conversion is scheduled to be fully completed in the first half of 2021.
