InvestingWIDE OPEN
Vehicle-to-grid and battery arbitrage
Buy cheap off-peak power, sell high — genuinely early-stage tech with a real payback period.
Cost$$$$$A$4,488–22,441
Ready in3–12 mo
CeilingA$150
Ceiling evidenceESTIMATED
SCORE 30
12 themes · every figure graded for evidence · four new every Monday
What can you start, with what you’ve actually got?