standardlastprofile 2.0.0

This release (finally) adds gas standard load profiles (SLPs) alongside the existing electricity profiles. We introduce an updated interface for electricity SLPs too. All renames and deprecations below are backward compatible.

New functions

• slp_electricity() is the new primary function for generating electricity SLPs. It replaces slp_generate() with a cleaner interface: no state_code argument and no restriction on the date range (previously limited to 1990–2073 by the built-in holiday data).

• slp_gas() implements the BDEW/VKU/GEODE synthetic procedure for gas SLPs (SigLinDe method). It supports all 15 gas profile IDs defined in the BDEW Leitfaden, as of 2025-10-28 (HEF, HMF, HKO, GKO, GHA, GMK, GBD, GBH, GWA, GGA, GBA, GGB, GPD, GMF, GHD). The function takes daily temperatures and a kundenwert (kWh/day), and returns daily gas consumption in kWh. A variant argument selects between SigLinDe variant (German: “Ausprägung”) "34" (57 % linear component) and "33" (45 % linear component).

• slp_gas_kundenwert() derives the kundenwert from a full reference year of daily temperatures and an annual consumption target. You might use this in a two-step workflow: compute KW once from a representative year, then pass the result as kundenwert to slp_gas() for any shorter period. Daily mean temperatures can be obtained e.g. from the DWD open-data archive, e.g. via the rdwd package; see the gas SLP article on the package website for a complete fetch-to-profile walkthrough.

• slp_gas_siglinde() exposes the low-level dimensionless daily heating demand function h(θ) used internally by slp_gas(). It is exported so that users with custom or region-specific coefficients (e.g. state-level parameters such as BW_HEF03 for Baden-Württemberg) can compute h(θ) directly and build their own profiles.

• slp_gas_coefficients() returns the SigLinDe profile function coefficients (A, B, C, D, θ₀, mH, bH, mW, bW) for one or more gas profiles as a data frame. Supports both variants ("34", "33").

• slp_gas_weekday_factors() returns the weekday scaling factors (F_WT) for one or more gas profiles as a data frame with columns profile_id, day, and f_wt.

• Nationwide German public holidays are now computed via the Anonymous Gregorian Easter algorithm rather than looked up in a precomputed table. Coverage is open-ended from 1990 onward (the year German Unity Day was introduced); the previous 2073 / 2099 caps no longer apply. State-level holidays are no longer included; use the holidays argument to supply custom dates.

• slp_info() now accepts gas profile IDs too (HEF, HMF, HKO, etc.) in addition to electricity IDs, and respects the language argument for both. Electricity and gas IDs can be mixed freely in a single call.

Deprecations

• The dataset slp has been renamed to slp_electricity_profiles. The package no longer ships under the old name, but accessing slp still returns the data and emits a lifecycle deprecation warning pointing to the new name. The shim will be removed in a future release.

Superseded

• slp_generate() is now superseded in favour of slp_electricity(). It remains in the package and will not be removed for now, but new code should use slp_electricity() instead.

Breaking changes

• Passing state_code to slp_generate() now throws an error (previously a warning since version 1.1.0). Use the holidays argument of slp_electricity() to supply custom holiday dates.

standardlastprofile 1.1.0

New profiles

• Added five new standard load profiles published by BDEW in 2025: H25 (household), G25 (commercial), L25 (agriculture), P25 (combination profile with photovoltaics), and S25 (combination profile with storage and photovoltaics). All five are available via slp_generate() and slp_info(), and are included in the slp dataset.

New features

• slp_generate() gains a holidays argument: a character or Date vector of ISO 8601 dates that are treated as public holidays (mapped to "sunday" in the algorithm). When supplied, the built-in holiday data are ignored entirely, giving callers full control over which dates count as holidays.

Deprecations

• The state_code argument of slp_generate() is deprecated. Pass a vector of holiday dates to the new holidays argument instead (#3).

Bug fixes

• Fixed incorrect weekday assignment when a date range contains a Dec 24 or Dec 31 that falls on a Sunday. The previous check used all() across the entire range, which caused every other Dec 24/31 in the range to be mapped to "workday" instead of "saturday" (#2).

standardlastprofile 1.0.0

• Initial CRAN release