Another Seattle-area clean energy startup is raising cash. This time it’s WattBuy, which just reeled in a $1.2 million seed round led by venture capital firm Powerhouse Ventures to fund the growth of its electricity marketplace. Last month, Omnidian landed $15 million to finance its solar system protection plan business, and LevelTen Energy brought in more than $20 million for a clean energy marketplace aimed at small and medium-sized businesses. WattBuy is an earlier-stage startup that aims to give households a simple platform to shop for an electricity provider in states where that is an option.