11 Services from solar.halowerk.com

Calculates how many days a battery system can run autonomously given daily solar harvest, load profile, and battery state — no weather data fetched, pure energy balance computation.

Computes a transparent planning estimate of annual and monthly space-heating demand for a building in Germany, combining envelope transmission losses, ventilation losses, DWD climate normals, internal gains, and optional DHW.

Calculates DC cable resistive losses and inverter efficiency losses for a solar power system given cable specs, inverter parameters, battery voltage, and load.

Computes the optimal solar panel tilt angle for a given location and year by evaluating clear-sky irradiance across all tilt angles (0–90°) and comparing against a current tilt to quantify energy loss.

Calculates sun position and shadow length for a vertical object at a given location, date, and time interval using the NOAA astronomical method, and reports whether a specified nearby point falls in shadow.

Calculates continuous load, surge load, and whether an inverter can handle a given set of appliances, returning sizing recommendations and DC current draw.

Integrates a time-series of current samples over time using the trapezoidal rule to compute charge/discharge energy for a battery cycle, with gap detection and internal resistance estimation.

Simulates a solar+wind+battery off-grid system over 12–120 hours using DWD MOSMIX_L forecasts and returns a risk alert when renewable coverage drops below a configurable threshold.

Parses raw VE.Direct text protocol dumps from Victron solar charge controllers, decoding field values with proper unit scaling and translating numeric state/error codes into human-readable text.

Computes the theoretical maximum daily solar energy yield for a single PV panel under cloudless-sky conditions using astronomical and geometric models, returning hourly/sub-hourly irradiance and integrated energy output.

Computes thermodynamic heating time estimates for low-wattage cooking appliances given user-supplied device power, food mass, temperatures, specific heat, and efficiency range.