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Low net energy produced; uses large areaThe biggest problems with using biomass as an energy source are two-fold: first, it takes a lot of energy to grow plants, and second, it takes a lot of land area and water to grow plants. Also, currently we cannot make ethanol from fast growing plants like switchgrass, only from corn, which is much less efficient. In the future, that technology will probably be discovered, although it's not clear when.

The real question about biomass is whether or not you get a significant amount of energy NET. To determine that is not simple in practice, but in principle it is just the amount of energy produced minus the amount of energy that went into production. When you include the energy content all the aspects of farming (making fertilizer, irrigation and watering, driving tractors, etc.) as well as the energy required to convert plant matter into ethanol, the net gain is not very much (a few percent). Some calculation actually show that more energy is spent producing biomass than comes out! Right now, with current technology, growing corn for energy is energy politics, not energy policy.

Also, if biomass is used as a source of energy on a global scale to replace oil, coal and natural gas, we would have plant energy crops on a very large percentage of the earth's land surface. It is not clear if there is enough water to support that kind of large-scale agriculture. The scale would be many times larger than all the land used currently for food production. The massive land area used may also raise issues of land use and may cause damage to natural habitats and may threaten the survival of sensitive species.

Disadvantages

  • Biocrops have a higher value than food and can detract food production, leading to food shortages and increased prices
  • Some pollutants are released into the atmosphere
  • we might run out of plants and animals
  • Biofuels are inefficient.
  • Biofuels cause some pollution.

Fermentation of the biomass emits methane that destroys the atmosphere, in particular the higher altitudes that protects us from the dangerous UV rays.
High ash and moisture content, and high chloride content (corrosive gasses).
One disadvantage of biomass is that is causes air pollution. Also we could run out of chickens and no poo would come out their rear end

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Related Questions

What is a disadvantage of using biomass?

There are a few disadvantages of using biomass energy. Some of the disadvantages include the cost, use of fossil fuels, and environmental hazards.


What are the disadvantages of biomass power stations?

Some disadvantages of biomass power stations include emissions of greenhouse gases and air pollutants during the burning process, the potential competition with food crops for biomass sources, and the requirement for large land areas to grow biomass crops. Additionally, biomass power generation can sometimes be more expensive than fossil fuels or other renewable energy sources.


How does biomass save energy?

im learning about biomass energy in earth science and I have a project and I still don't understand the advantages and disadvantages can I please get help


Is biomass advantage fact or disovantage?

Biomass has both advantages and disadvantages. Some advantages include its renewable nature, reduction of waste when used for energy production, and potential to reduce greenhouse gas emissions. However, disadvantages can include competition with food production, land use conflicts, and emission of pollutants during combustion.


What are the drawbacks of biomass?

Biomass energy, or biofuel, comes from sources such as wood, manure, and sewage. Disadvantages of using this type of energy, as opposed to fossil fuels, are that it can be expensive, inefficient, harmful to the environment, and it uses more up land and fuel.


What are advantages and disadvantages of a pyramid of biomass?

The pyramid of biomass visually represents the total mass of living organisms at each trophic level in an ecosystem, making it useful for understanding energy flow and ecosystem productivity. Advantages include illustrating the efficiency of energy transfer and highlighting the impact of biomass loss on higher trophic levels. However, disadvantages include its inability to account for the volume of organisms or the energy content of different species, leading to potential misinterpretations of ecosystem dynamics. Additionally, it may not accurately represent aquatic ecosystems where biomass distribution can differ significantly from terrestrial ones.


What is advantages and disadvantages for Biomass Hydroelecric Nuclear Solar Hydrogen and Wind Power?

All these questions are asked separately many times over. Can this one be deleted?


What is a negative for biomass?

there is not a thing negtive about biomass we need to save biomass it!


The total amount of living tissue within a given trophic level is called the?

biomass!


Is biomass easy to get?

its pretty much everywhere. anything containing carbon is biomass. dirt is biomass. poop is biomass. a tree is biomass. you are biomass. so is your dog.. so, yeah; its pretty easy to get your hands on.


What are the advantages and disadvantages of using biomass energy?

Biomass energy offers several advantages, including its potential for reducing waste by utilizing organic materials and its ability to be carbon-neutral, as the CO2 released during combustion is roughly equivalent to what the plants absorbed during their growth. However, it also has disadvantages, such as land use competition with food production, possible deforestation, and the emissions of pollutants during combustion that can affect air quality. Additionally, the efficiency of biomass energy conversion can be lower compared to other renewable sources, requiring more resources for the same energy output.


Is biomass organic?

Biomass is the 'weight' of biological matter. often measured in a biomass pyramid.