solar.halowerk.com
https://solar.halowerk.comComputes a transparent planning estimate for space-heating demand. The method is not DIN, VDI, GEG or PHPP and must not be used as regulatory proof. It combines transmission heat loss from each envelope component, ventilation heat loss from heated volume and air changes, monthly heating degree days from the nearest DWD 1991-2020 temperature-normal station, stated internal gains and optional dom...
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Paid endpoints
11 resource(s) advertised by this origin.
https://solar.halowerk.com/battery-cycle
Integrates the supplied current over time by the trapezoidal rule, so the result is only as good as the sampling interval; gaps longer than the stated max_gap_seconds are excluded and reported. Sign convention: positive current is charging, negative is discharging. Internal resistance is estimated f
https://solar.halowerk.com/inverter-load-check
Continuous load is the sum of the running watts of all appliances marked as simultaneous. The surge check adds the largest single starting surge on top of the continuous load, which is the case that trips an inverter; simultaneous starts of two motors are reported separately as a second figure. Star
https://solar.halowerk.com/clear-sky-yield
This is an astronomical and geometric calculation, not a forecast. It assumes a cloudless sky and states the models used; real yield is lower whenever there is cloud, haze, snow, soiling or high cell temperature. The system_derate factor covers cabling, controller and temperature losses as one flat
https://solar.halowerk.com/low-wattage-cooking
Uses rated electrical power, food mass, start and target temperature, specific heat and an explicit efficiency range supplied by the caller. Optional vessel heat, evaporation and a caller-defined hold phase can be included. It contains no recipes, recipe text, food-specific cooking claims or hidden
https://solar.halowerk.com/victron-log-parse
Reads the key-tab-value lines of the VE.Direct text protocol, applies the unit scaling that belongs to each key, and decodes the charger state, tracker state and error number into plain text. Multiple blocks in one dump are returned as separate records in order. Keys that are not in the field table
https://solar.halowerk.com/autonomy-forecast
Daily energy balance and straight run-down from the figures supplied. Solar input is caller data in watt-hours per day; nothing is fetched and no weather is assumed. Time to empty means time to the reserve floor, not to zero. Idle draw and conversion efficiency apply to AC loads only. Ageing, temper
https://solar.halowerk.com/shadow-simulator
Pure astronomy and geometry on level ground: sun position by the NOAA method, shadow length as object height divided by the tangent of the sun elevation. Refraction is only applied to sunrise and sunset. Terrain slope, surrounding buildings, vegetation and diffuse light are not modelled, so a point
https://solar.halowerk.com/tilt-optimiser
Evaluates clear-sky irradiance in the module plane for tilt angles from zero to ninety degrees on the fifteenth of each month and sums the days. Because it assumes a cloudless sky, the optimum leans slightly steeper than a real-weather optimum, where diffuse light from an overcast sky rewards flatte
https://solar.halowerk.com/inverter-losses
Cable loss uses the DC resistance of the two-way run at twenty degrees Celsius; warm cable in a hot compartment carries roughly four percent more resistance per ten kelvin, which is not applied. Inverter loss follows a three-part model of idle draw, a proportional share and a quadratic share, fitted
https://solar.halowerk.com/off-grid-weather-alarm
Uses the nearest current DWD MOSMIX_L station forecast, or a station explicitly supplied by the caller. Global irradiance drives a transparent PV estimate and forecast wind speed drives a stated generic turbine curve; neither replaces a site-specific yield model. A constant hourly load and optional
https://solar.halowerk.com/building-heat-demand
Computes a transparent planning estimate for space-heating demand. The method is not DIN, VDI, GEG or PHPP and must not be used as regulatory proof. It combines transmission heat loss from each envelope component, ventilation heat loss from heated volume and air changes, monthly heating degree days
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curl -X POST https://solar.halowerk.com
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