Built on calm signals

Why trust Quiet Hours?

A short read on what we look at, how we suggest, and what we never ask for.

Signals we use
  • Weather forecasts
  • Historical demand
  • Renewable generation trends
  • Regional grid conditions
  • Pricing schedules
How recommendations work

We look for actions that help most with the least disruption to your evening.

  • Find the shared stress window

    Compare forecast demand, renewable drop-off, and wholesale price movement to identify when timing matters.

    U.S. EIA v2 API + CAISO OASIS
  • Explain the driver

    Use official weather forecasts to translate heat, wind, and storm risk into plain-language demand drivers.

    NOAA / National Weather Service API
  • Estimate household flexibility

    Use conservative ResStock end-use shapes for EV, HVAC, and appliance timing before any private device data exists.

    NREL ResStock
  • Label savings and impact honestly

    Estimate savings from representative utility rate spreads and emissions context from annual eGRID factors.

    OpenEI Utility Rate Database + EPA eGRID
Your privacy

We do not require smart meter access for basic guidance. You stay in control of what you share.

Data sources used by Quiet Hours
  • U.S. EIA v2 API
    Source
    Balancing authority demand, generation mix, and hourly electricity operations data
    live · Hourly/daily depending on series
    Regional demand baselineForecast-vs-actual checksGeneration mix context

    Some series lag real time; source timestamps should stay visible.

  • CAISO OASIS
    Source
    Market and system conditions for CAISO (load, prices, curtailment, ancillary data)
    live · 5-minute to hourly datasets
    CAISO demand forecastWind and solar forecastWholesale price signal

    Official market data is informational guidance and not bill settlement data.

  • ERCOT Public Data / API Explorer
    Source
    ERCOT public reports, load data, system conditions, and market operations datasets
    live · Varies by report; many current reports update hourly or more often
    ERCOT load contextReserve and system condition contextPublic report links

    ERCOT public APIs may require registration and report-specific terms; timestamps should stay visible.

  • NYISO Public Market Data
    Source
    New York ISO public load, fuel mix, real-time market, and load forecast data
    live · 5-minute, hourly, and daily datasets depending on report
    NYISO load contextFuel mix contextLoad forecast checks

    NYISO datasets vary by report and market process; recommendations should show the exact dataset timestamp.

  • PJM Data Miner
    Source
    PJM public data for load, forecasts, prices, and grid-region operations
    live · Varies by feed; current operational feeds can update intra-hour
    PJM load contextForecast checksRegional price context

    PJM Data Miner has usage and redistribution limits; production use needs terms review.

  • NOAA / National Weather Service API
    Source
    Forecast and alerts used for demand sensitivity features (temperature, heat, storm risk)
    live · Updated throughout the day
    Temperature driverHeat and storm riskDemand sensitivity language

    Forecast gridpoints describe weather risk, not household behavior directly.

  • EPA eGRID
    Source
    Annual emissions factors for translating shifted kWh into avoided emissions estimates
    delayed · Annual release
    Regional emissions factorAvoided CO2 estimate

    Annual factors are credible for context, not minute-by-minute marginal emissions.

  • OpenEI Utility Rate Database
    Source
    Residential tariff and time-of-use structures for savings estimates
    live · Continuously maintained
    Peak/off-peak rate spreadSavings estimates

    Savings use representative tariffs and should be labeled as estimates.

  • NREL ResStock
    Source
    Residential building stock and end-use load profiles for household flexibility assumptions
    modeled · Periodic public releases
    EV load shapeHVAC flexibilityAppliance shift bands

    Modeled stock profiles should be treated as defaults until a home shares device data.

  • U.S. Census ACS API
    Source
    Housing and community context for local participation and equity framing
    delayed · Annual survey releases
    Housing mixCommunity contextDefault household profile weighting

    ACS is statistical context, not a live count of Quiet Hours homes.

Tonight's confidence
High confidence
0%
Last model run 10:07 PM · Live grid and weather feeds are current; emissions and household defaults come from slower public datasets.
Confidence levels
  • High · Strong, clean signal across weather, generation, and demand.
  • Medium · Changing weather or uncertain conditions ahead.
  • Low · Guidance is limited tonight — we'll keep recommendations gentle.
No-recommendation nights
Sometimes the smartest recommendation is none.

On easy nights, we'll quietly say so. No nudges. No guilt. Just the truth that the system is fine on its own.

A few terms, simply
What is the grid?
The shared network that moves electricity from where it's made to where it's needed.
Why timing matters
Using the same energy later can sometimes be easier on the system.
Why evenings?
Lights, cooking, cooling, charging, and returning home often happen at once.