Backup-Mirrors/EPrices
1
0
Fork 0
mirror of https://github.com/Legolas-2025/EPrices.git synced 2026-08-17 12:34:51 +02:00
Code Issues Packages Projects Releases Wiki Activity

Upgrade EPrices to version 1.1 with new features

Browse Source 
Updated version to 1.1 with new features including separate provider fee for negative prices and new substitutions. Adjusted calculations for electricity prices based on the new fee structure.
This commit is contained in:
Amir
2026-04-06 03:14:23 +02:00
committed by GitHub
parent fa507ff8ef
commit a09de2a71b
1 changed files with 28 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files
eprices.yaml
+28 -13
View File
@@ -1,13 +1,22 @@
# =============================================================================
# ESPHome: EPrices v1.0
#
# ESP32 firmware that fetches day-ahead electricity spot prices from the
# public Energy-Charts API (https://api.energy-charts.info) and exposes
# them as Home Assistant sensors. No API token required.
# ESPHome: EPrices v1.1
#
# Electricity price data provided by Energy-Charts (https://energy-charts.info)
# under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/).
#
# v1.1 changes:
# - Separate provider fee for negative spot prices (eprices_neg_prov_fee):
# positive prices: (raw / 1000) × (1 + prov_fee) × (1 + vat_rate)
# negative prices: (raw / 1000) × (1 - neg_prov_fee) × (1 + vat_rate)
# switch happens on raw API price before any multiplier is applied
# VAT applied to both cases (consistent with net billing + end-of-month VAT)
# 0.30 = provider keeps 30%, pays you 70% of negative price
# 0.00 = provider passes full negative price to you (no fee)
# - New substitution: neg_prov_fee_value (!secret eprices_neg_prov_fee)
# - New global: neg_prov_fee (double)
# - MULT split into MULT_POS / MULT_NEG in parse_energy_charts_today_script
# and parse_energy_charts_tomorrow_script
#
# v1.0 release notes:
# - Fetches 15-min and hourly spot prices for today and tomorrow
# - Prices converted from raw €/MWh to €/kWh with provider fee and VAT applied
@@ -40,9 +49,10 @@
# =============================================================================
substitutions:
country_bzn_value: !secret eprices_country_bzn
prov_fee_value: !secret eprices_prov_fee
vat_rate_value: !secret eprices_vat_rate
country_bzn_value: !secret eprices_country_bzn
prov_fee_value: !secret eprices_prov_fee
vat_rate_value: !secret eprices_vat_rate
neg_prov_fee_value: !secret eprices_neg_prov_fee
esphome:
name: eprices
@@ -497,6 +507,9 @@ globals:
- id: vat_rate
type: double
initial_value: '${vat_rate_value}'
- id: neg_prov_fee
type: double
initial_value: '${neg_prov_fee_value}'
# --- Pre-computed fetch URLs (url: !lambda not supported in scripts) ---
- id: fetch_url_today
@@ -1261,7 +1274,8 @@ script:
raw_body: string
then:
- lambda: |-
const double MULT = (1.0 + id(prov_fee)) * (1.0 + id(vat_rate));
const double MULT_POS = (1.0 + id(prov_fee)) * (1.0 + id(vat_rate));
const double MULT_NEG = (1.0 - id(neg_prov_fee)) * (1.0 + id(vat_rate));
id(price_values_today).clear();
id(price_timestamps_today).clear();
@@ -1350,7 +1364,7 @@ script:
if (end1 == ts_toks[i].c_str() || end2 == prc_toks[i].c_str()) continue;
if (unix_ts <= 0) continue;
float eur_kwh = (float)((double)raw_mwh * MULT / 1000.0);
float eur_kwh = (float)((double)raw_mwh * (raw_mwh >= 0 ? MULT_POS : MULT_NEG) / 1000.0);
id(price_timestamps_today).push_back(unix_ts);
id(price_values_today).push_back(eur_kwh);
}
@@ -1369,7 +1383,8 @@ script:
raw_body: string
then:
- lambda: |-
const double MULT = (1.0 + id(prov_fee)) * (1.0 + id(vat_rate));
const double MULT_POS = (1.0 + id(prov_fee)) * (1.0 + id(vat_rate));
const double MULT_NEG = (1.0 - id(neg_prov_fee)) * (1.0 + id(vat_rate));
id(price_values_tomorrow).clear();
id(price_timestamps_tomorrow).clear();
@@ -1437,7 +1452,7 @@ script:
if (end1 == ts_toks[i].c_str() || end2 == prc_toks[i].c_str()) continue;
if (unix_ts <= 0) continue;
float eur_kwh = (float)((double)raw_mwh * MULT / 1000.0);
float eur_kwh = (float)((double)raw_mwh * (raw_mwh >= 0 ? MULT_POS : MULT_NEG) / 1000.0);
id(price_timestamps_tomorrow).push_back(unix_ts);
id(price_values_tomorrow).push_back(eur_kwh);
}
@@ -2094,4 +2109,4 @@ script:
id(tomorrow_nvs_status).publish_state("Cleared");
id(tomorrow_last_api_fetch_time) = std::string("Never");
id(tomorrow_last_api_fetch_time_sensor).publish_state("Never");
id(tomorrow_last_price_update_time).publish_state("Outside fetch window");
id(tomorrow_last_price_update_time).publish_state("Outside fetch window");