{"id":121,"date":"2026-08-25T10:00:00","date_gmt":"2026-08-25T09:00:00","guid":{"rendered":"https:\/\/biorgmax.com\/como-calcular-el-retorno-de-la-inversion-de-un-biodigestor\/"},"modified":"2026-09-21T20:06:17","modified_gmt":"2026-09-21T19:06:17","slug":"como-calcular-el-retorno-de-la-inversion-de-un-biodigestor","status":"publish","type":"post","link":"https:\/\/biorgmax.com\/en\/como-calcular-el-retorno-de-la-inversion-de-un-biodigestor\/","title":{"rendered":"How to calculate the return on investment for a biodigester"},"content":{"rendered":"

The first question that springs to mind is how long it takes to recoup the cost of the equipment. The honest answer is that it depends on the model and the sector, and that the usual range is between one and three years. But that range isn\u2019t much use if you don\u2019t know which costs to include in the calculation, and that\u2019s where most estimates fall short.<\/p>\n\n\n\n\n\n\n\n

What almost everyone says<\/h2>\n\n\n\n

1. The waste management company\u2019s invoice<\/h3>\n\n\n\n

This is the most obvious item and is usually the largest. Collection, transport and treatment of organic waste. It is worth looking at the trend over the last three years, not just the current figure: this is a cost that tends to rise.<\/p>\n\n\n\n

2. The containers<\/h3>\n\n\n\n

Rent or mortgage repayments, and regular cleaning and disinfection.<\/p>\n\n\n\n

What is often overlooked<\/h2>\n\n\n\n

3. The cold<\/h3>\n\n\n\n

This is the item that is most often left out of the calculation. In many facilities, cold stores are kept running for the sole purpose of preventing organic waste from decomposing before the lorry arrives. That means 24-hour electricity consumption, maintenance of the refrigeration equipment and, above all, square metres of cold store space occupied by waste rather than produce.<\/p>\n\n\n\n

4. The space<\/h3>\n\n\n\n

Container area, manoeuvring area, quay. In an urban location, the price per square metre is very specific.<\/p>\n\n\n\n

5. Staff hours<\/h3>\n\n\n\n

Taking out the rubbish, bringing bins out and putting them back, cleaning the area, liaising with the refuse collection service. It doesn\u2019t appear on any invoice, but it\u2019s paid as part of your salary.<\/p>\n\n\n\n

6. Pest control<\/h3>\n\n\n\n

Stored organic waste attracts rodents and insects. Pest control contracts exist largely for this reason.<\/p>\n\n\n\n

And in the other column<\/h2>\n\n\n\n

A digester is not free to run. For the calculation to be accurate, its own costs must be deducted:<\/p>\n\n\n\n