qweb.xml

<?xml version="1.0" encoding="UTF-8"?>
<template>
    <div t-name="product_losses_details" style="height: 100%;">
      <div id="product_losses_comments"></div>
      <canvas id="product_losses_chart"></canvas>
    </div>
    <div t-name="product_autoconso_details" style="height: 100%;">
      <div id="product_autoconso_comments"></div>
      <canvas id="product_autoconso_chart"></canvas>
    </div>
    <div t-name="product_meals_details" style="height: 100%;">
      <div id="product_meals_comments"></div>
      <canvas id="product_meals_chart"></canvas>
    </div>
</template>