Guides
Battery rebate guides
The questions people ask before they sign a battery quote, answered from the department's and the regulator's own pages.
The federal discount looks simple on an installer’s quote: one dollar figure off the price. Behind it sit a certificate count, a factor that changes every six months, a size taper and a fixed certificate price, plus a rule about inverters that confuses almost everyone. Each guide takes one of those pieces and works it through with real batteries from our list.
Every figure links to its source and says when we checked it, and every guide ends at the dial, where you can try the answer on your own battery and install date.
- Battery rebate step-down dates to 2030: which ones matter for your installEight more cuts are scheduled, and they are not equal: the first one is the steepest, and the date that counts is not the day you sign.Updated · 3 min read
- How the battery rebate is calculated, step by stepTwo numbers decide it, your battery's usable capacity and the day it is certified; here is the arithmetic between them and the dollars.Updated · 3 min read
- Do I need a VPP-capable battery?For the federal rebate on a grid-connected home, yes; but capable is not the same as signed up, and you never have to join one.Updated · 3 min read
