Powerwall settings for BGE time-of-use
Schedule RL in plain English: BGE’s residential time-of-use rate — cheaper nights, pricier evenings.
Maryland’s BGE TOU offers 4.4¢ overnight power against ~13¢ morning and evening peaks — a 3× ratio that makes overnight grid-charging genuinely cheap.
The plan at a glance
| Period | Hours | Rate |
|---|---|---|
| Off-peak (winter) | Overnight & midday | $0.044/kWh |
| Peak (winter) | 6–9 AM & 5–9 PM | $0.129/kWh |
1:1 net metering — exports credit near retail. Rates come from the published tariff as reflected in SolDial's rate database in mid-2026 — always verify current numbers with your utility.
What this plan means for a Powerwall
An 8.5¢ spread on a 3× price ratio: filling the pack overnight at 4.4¢ and covering both daily peaks is worth roughly $25–45/month for a typical home after losses — smaller than California numbers, but earned twice a day, every day, from grid charging that costs almost nothing. With 1:1 net metering, solar exports still earn retail credit, so surplus can flow freely.
Settings: Time-Based Control, grid charging on (the overnight rate is the whole strategy), reserve 20–30%, exports enabled.
The automations worth having
An overnight charge window; holds ahead of both the morning and evening ridges (the double-peak shape is what people forget); EV charging in the 4.4¢ hours; storm watch override.
Does this apply to my exact situation?
Plans vary by zone, season, and enrollment vintage, and utilities revise rates. SolDial matches your account to the actual published schedule from ~50,000 tariffs and recomputes the strategy — and the honest savings math — from your windows, not a blog’s snapshot. If your plan differs from this page, the app follows your plan.