BPA的管理者认为,基于哥伦比亚河几近泛滥的现状,再加上旨在保护其流域中濒临灭绝的鲑鱼的严格法案,使他们在面对电能过剩,需要消减时,只能将风力发电产生的电量并出电网,除此之外,别无它法。BPA随后解释道,并不是说非要进行水力发电不可。因为只有额定的水量能流经涡轮机组,注入水坝中。太多的溢水量使水中氮含量过高,导致游入哥伦比亚河的鲑鱼致死。BPA对于鲑鱼的担忧在人们看来,纯粹是个笑话。作为世界上最大的鲑鱼水域之一的哥伦比亚河,生态环境早已被破坏,而水力发电机组的发展要对此负很大的责任。
Be that as it may, in the early morning hours of May 18th, BPA did something it has never donebefore. It took all the regions wind turbines offline for about five hours and it expects tocontinue to pull the plug on them for a few hours almost every night until well into July, whenenough snow in the Cascades and northern Rockies will have melted for the excess run-off to subside. Until then the BPA will be giving electricity away,and paying the transmission costs of utilities willing to take it.
也许就是出于这样的考虑,在5月18日的早间,BPA采取了前所未有的行动。即:将哥伦比亚河地区所有的风力涡轮机发出的电能并出电网5小时,预期之后几乎每晚都将并出电能几小时,这一行为要持续到7月。直到卡斯克德和北落基山的融雪流过并减弱后。到那时BPA会把风力发电产生的电能免费并入其它电网,并负担公用转输所要支付的费用。
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