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Live Data · ERCOT

Texas Grid Pulse

Real-time ERCOT grid load and 24-month rate history — why right now is the best time to lock in solar.

24-Month Rate History

Harris County, TX · Cheapest 12-month fixed plan

7.6¢

Current Rate

Current rate (valley)Summer peak (>13¢)Historical average
Why the valley matters: The current 7.6¢/kWh rate is near a 2-year low. Locking in solar now hedges against the summer peaks that historically hit 13–14¢.

Why Grid Load Affects Your Bill

Texas runs on the ERCOT grid — an island grid with no meaningful connection to neighboring states. When demand spikes, prices spike. There's no outside buffer.

Data centers are the new wildcard. In 2025–2026, Texas added over 8 GW of data center load — the equivalent of several million new homes. This is pushing afternoon peaks to record levels.

Variable-rate customers feel it immediately. During a Critical load event, spot prices can spike 50–100× above normal. Customers on indexed or real-time pricing plans see these charges directly on their bill.

Home solar generation peaks at the same time grid demand peaks — making it the most effective hedge against rate spikes available to Texas homeowners.