Biolectric Farm Scale slurry only Anaerobic Digesters(English)

[@ek9772]

This is biogas plant is specified to make 1,300 kWh per cow per year.

1,300 kWh x 60-cows = 78,000 kWh with 60-cows

78,000 kWh / 365 = 213.7 kWh per day 
 213.7 kWh per day / 24-hours = 8.9-kWh each hour

This has a capacity factor of 90% to 100%. This means the biogas plant will produce energy between 90% to 100% of the time.

Suppose the capacity factor was 20%

This would mean that only 20% of the year it would be able to make 8.9-kWh each hour.

Solar energy has approximately a 20% capacity factor since there is no sunlight at night.

A photovoltaic solar array of 8.9-kWh has a cost of less than $10,000, and it would produce between 9,700 kWh to 17,800 kWh depending on where it is installed. This is between 12% to 23% of what a biogas will produce per year.

The cost per installed watt for a photovoltaic solar array is less than $10,000 / 8,900 watts = $1.12 per watt and with a 20% capacity factor, the actual cost is $1.12 / 20% = $5.62 per watt

This biogas plant has a cost of $100,000 / 8,900 = $11.24 per watt and with a 100% capacity factor
$11.24 / 100% = $11.24 per watt

This biogas plant has a cost of $100,000 / 8,900 = $11.24 per watt and with a 90% capacity factor
$11.24 / 90% = $12.48 per watt

As you may appreciate the biogas is fully priced per watt.

[@paudieoc1234]

If your farm was very big, could you solar by day and methane by night would eliminate the need for expensive storage

[@douglasbaskett2298]

Do you have units in the United States of America? How scalable is your units? Are any of your units capable of handling a 1,500 mature head dairy farm?

[@patiodev]

Does this work with stored slurry? That is, distribute supply through the year as cows are outside in summer.

[@yorkshiresingletrack4317]

Unfortunately not, the system needs fresh slurry otherwise the methane is lost

[@WhatTheRiton]

and pig slurry ?

[@biolectric5878]

Yes pig slurry can work

[@rented_mule8790]

Until 💥 BOOM as in Texas .

[@sammaclachlan8711]

How many kw per cow

[@yorkshiresingletrack4317]

Approx 0.15kw per hour per cow 🐄 so 200 cows = 30kw

[@michaelmulligan0]

What about cattle not kept in sheds?

[@yorkshiresingletrack4317]

@@michaelmulligan0 calculations need to be taken on available slurry

[@biolectric5878]

0.15kw per cow per hour

[@malvernmurimoga848]

@lanforce energy zimbabwe

[@cycloneranger5354]

manure has no value in the food chain? really? sounds like a big fat lie to me

[@PreservingHumanity]

If directly aged for one year it becomes fertilizer this speeds up the process