把Sunpower和Kwhour 都写在支票上,把支票给Sunpower,备份抄给Kwhour,这样这两个公司达成协议才可以存支票。
https://www.fool.com/the-ascent/banks/articles/heres-what-happens-when-you-receive-a-check-made-payable-to-two-people/