dirkjanfaber

Feed-in bonus (Victron Dynamic ESS)

Some energy suppliers pay a bonus on exported solar: an extra share of the market price during part of the day, often up to a yearly cap. Examples are NextEnergy (+50 %, 06:00-22:00, 6,000 kWh) and Zonneplan (+10 %, sunrise to sunset, 7,500 kWh).

This subflow runs once a day on a Victron GX (or any Node-RED with access to the VRM API):

• reads this year's export from VRM and projects the year total
• works out the bonus that will really be paid under the cap
• warns you, also as a GX notification, when export heads past the cap
• optionally writes the Dynamic ESS sell price in VRM as a schedule: normal price outside the bonus window, price plus bonus inside it

dirkjanfaber

[
    {
        "id": "31b15ddbce69ea1f",
        "type": "tab",
        "label": "Remco Schilder",
        "disabled": false,
        "info": "",
        "env": []
    },
    {

dirkjanfaber

[
    {
        "id": "eb74a53e0e431bfc",
        "type": "inject",
        "z": "5288063e6fbe9823",
        "name": "",
        "props": [
            {
                "p": "payload"
            },

dirkjanfaber

[
    {
        "id": "13b8708c2a084ab6",
        "type": "tab",
        "label": "Soc based schedule activation",
        "disabled": false,
        "info": "",
        "env": []
    },
    {

dirkjanfaber

#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <stdbool.h>
#include <math.h>

#include <velib/utils/ve_item_utils.h>
#include <velib/vecan/products.h>
#include <velib/utils/ve_logger.h>

dirkjanfaber

[
    {
        "id": "dbd3635678fe7351",
        "type": "victron-input-system",
        "z": "fc595badb082c140",
        "service": "com.victronenergy.system/0",
        "path": "/Serial",
        "serviceObj": {
            "service": "com.victronenergy.system/0",
            "name": "Venus system"

dirkjanfaber

[
    {
        "id": "cd12b4d0f3bb0e8c",
        "type": "ui_chart",
        "z": "482a4fb117466f9e",
        "name": "",
        "group": "89d78a937bb98c19",
        "order": 0,
        "width": 0,
        "height": 0,

dirkjanfaber

[
    {
        "id": "188103abad4ff1bc",
        "type": "tab",
        "label": "2 inputs",
        "disabled": false,
        "info": "",
        "env": []
    },
    {

dirkjanfaber

[
    {
        "id": "e78d2a1efd2c46e1",
        "type": "subflow",
        "name": "Entsoe",
        "info": "",
        "category": "",
        "in": [
            {
                "x": 220,

dirkjanfaber

[
    {
        "id": "728dba344d605fca",
        "type": "victron-input-temperature",
        "z": "da916ea9eff5bed3",
        "service": "com.victronenergy.temperature/41",
        "path": "/AccelX",
        "serviceObj": {
            "service": "com.victronenergy.temperature/41",
            "name": "RuuviTag"