很難就說僅是給用戶或者電源提供的。
更好的理解是為整個電力系統提供的。

中文意思：服務支付
1.A novel model for ancillary service payment in generation market
發電側電力市場輔助服務付費新模型
2.Since before the financial crisis of 2008, consumers have been cutting back on their debt loads, with the debt service payment to disposable income falling 17% from October 2007 by this summer to 11.5% of disposable income.
2008年金融危機爆發前開始，消費者們就在縮減債務負擔，償債支出占可支配收入的比例已從2007年10月的17%降至今年夏季的11.5%。
3.The measures include a raft of tax exemptions, public service payment waivers and credit support for small and medium-sized enterprises.
這些措施包括一系列稅收減免，公共服務費寬免，以及對中小企業的信貸支持。
4.However ugly those negotiations, America has never missed a debt service payment and there was little risk it would do so.
不管這類討價還價的過程有多么丑陋，美國從未錯過一次債務償付，而且也幾乎不存在出現這種情況的風險。
5.Full Service Payment System
北京聯通全業務付費系統