Renewable vs. conventional energy: A race in costs & sustainability – Renewable energy is often cheaper than conventional

🌟 The economics of renewable energies

The market for renewable energies is on the upswing, and studies by the Fraunhofer Institute for Solar Energy Systems ISE show that renewable energies can in many cases be more economical than conventional energy sources. Gas turbines and hard coal-fired power plants in particular have high production costs of 11 to 29 cents per kilowatt hour.

In contrast, onshore wind turbines and photovoltaic systems are often much cheaper. It is interesting that there is a considerable range in the costs of photovoltaic systems. This is mainly due to the different battery systems and their costs.

🌿 Renewable energies and their carbon footprint

It's not just about costs. Renewable energy is also significantly more environmentally friendly than its conventional counterparts. Conventional power plants produce significantly more CO2 over their lifetime than wind or solar systems.

With rising costs for CO2 certificates, renewable energies will become even more competitive in the coming years. For conventional power plants in Germany, the electricity production costs could exceed 7.8 cents per kilowatt hour due to higher CO2 costs.

📊 A look at the technology comparison

The study by the Fraunhofer Institute also compared various renewable energy technologies, such as photovoltaics, wind, biogas and solid biomass. Conventional power plants and various assumptions for the construction and operation of these power plants were also considered.

⛽ Fossil fuels today

Despite the advantages of renewable energies, the majority of energy worldwide is still generated from fossil fuels such as petroleum. But the tide is slowly turning.

While in Europe only around 4% of total energy comes from renewable energies, Africa produces almost half of its energy from renewable sources.

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When we talk about renewable energy sources, we need to look at a variety of technologies to determine the best mix for our future. The different energy sources have their own advantages and disadvantages. Here is an overview:

1. ☀️ Solar energy

Solar energy is generated by converting sunlight into electricity, either directly using photovoltaics or indirectly using concentrated solar energy.

Advantages

Unlimited energy source, clean energy, low maintenance cost.

Disadvantages

High initial costs, weather-dependent energy production, space requirements.

2. 💨 Wind energy

Wind turbines convert the kinetic energy of the wind into electricity.

Advantages

Renewable energy source, cost effective, can be used in many parts of the world.

Disadvantages

Unpredictable wind speeds, noise pollution, impact on birds and other animal species.

3. 💧 Hydropower

This uses the energy of falling or flowing water to generate electricity.

Advantages

Constant energy source, no emissions, long service life of the systems.

Disadvantages

Environmental impacts such as fish deaths, high construction costs, weather dependent.

4. 🌱 Biomass

Biomass refers to organic materials that are burned to produce energy or converted into biofuels.

Advantages

Reduces greenhouse gas emissions, uses waste products, can be constantly reproduced.

Disadvantages

Can lead to deforestation, competition with food production, CO2 emissions from combustion.

5. 🌋 Geothermal energy

Here the heat from within the earth is used to generate electricity.

Advantages

Continuous energy source, small space requirement, low CO2 emissions.

Disadvantages

Location dependent, can trigger earthquakes, high initial costs.

6. 🌊 Ocean energy

The energy of ocean waves, tides and ocean currents is used.

Advantages

Renewable energy source, high energy yield, potentially continuous production.

Disadvantages

Affects marine ecosystems, high installation costs, location dependent.

📈 Expert opinions on energy sources

🤓 Consultants and analysts

Most experts agree that a combination of different energy sources is necessary to meet global energy needs and minimize environmental impacts.

🌍 Environmental impact

Taking environmental aspects into account is crucial. Factors such as emissions, land use and impacts on ecosystems play a role here.

📉 Economic considerations

The costs of installing and maintaining energy systems are a significant factor. Investments and government funding are crucial here.

🚀 Technological developments

As technology advances, some of the current disadvantages of renewable energy sources could be minimized.

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Overall, all of these technologies offer opportunities to meet our growing energy needs while minimizing environmental impact. The optimal combination depends on regional conditions, economic factors and technological developments.

The world is at a crucial point in terms of energy use. The comparison between renewable and conventional energy sources is a hot topic. Let's delve deep into the details and analyze which source proves to be the better one.

🌏 Environmental impact

1. Renewable energy sources

These, such as solar, wind and hydropower, have minimal to no negative impact on the environment as they do not release harmful emissions.

2. Conventional energy sources

In contrast, conventional energy sources such as coal and natural gas release large amounts of CO2 and other greenhouse gases that contribute to global warming.

💰 Economic aspects

1. Renewable energy sources

Although the initial investment can be high, ongoing costs are relatively low. The energy sources are also inexhaustible, making them a sustainable choice.

2. Conventional energy sources

These tend to have lower initial costs, but operating costs can increase over time due to fuel costs and environmental charges.

🛠 Technological developments

1. Renewable energy sources

In recent years there have been significant advances in renewable energy technology, resulting in more efficient and cost-effective solutions.

2. Conventional energy sources

Although progress has been made here, opportunities to reduce environmental impacts are limited.

🏭 Industrial applications

1. Renewable energy sources

These are ideal for use in various industries as they offer a clean and sustainable energy option.

2. Conventional energy sources

These remain a dominant choice in the industry, primarily because of their high energy yield and reliability.

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Power plants have long been a central part of our energy infrastructure. While they provide us with the energy we need, they are also major contributors to CO2 emissions, which have a significant impact on our environment. Let's dive deep into this topic.

1. 💡 Basics of CO2 emissions

What is CO2

Carbon dioxide (CO2) is a greenhouse gas that occurs naturally in the atmosphere. However, it is human activity, particularly the burning of fossil fuels, that has led to a significant increase in this gas in the atmosphere.

Why is it problematic?

An excess of CO2 in the atmosphere leads to the greenhouse effect, causing the Earth's temperature to rise, which in turn causes climate change and a range of environmental impacts.

2. 🏭 Conventional power plants and their role

How do they work?

Conventional power plants burn fossil fuels such as coal, oil or gas to produce energy. This combustion process releases CO2 into the atmosphere.

The high price of energy

While they can provide energy efficiently, the environmental impact is significant. Burning coal is particularly harmful because it releases not only CO2 but also other harmful emissions such as sulfur dioxide.

3. 🌍 Global impacts of CO2

Increase in global temperatures

The main consequence of the greenhouse effect. This leads to melting glaciers, rising sea levels and more extreme weather events.

Impact on biodiversity

Many animal and plant species cannot adapt quickly enough to changing conditions, leading to a decline in biodiversity.

4. 🌳 Possible solutions and alternatives

Renewable energy

Solar and wind energy are clean energy sources that do not produce the same harmful emissions as conventional power plants.

Energy efficiency

More efficient energy consumption can help reduce the need for conventional power plants.

Reforestation

Trees absorb CO2 and release oxygen, reducing the amount of CO2 in the atmosphere.

5. 💭 Final Thoughts

It is up to us to make more conscious choices about energy sources and support technologies that reduce carbon footprints. Each of us can do our part to protect the planet for future generations.

🌍🍃 The environmental impact of conventional power plants 🍃🌍

💡 Interesting facts about CO2

Carbon dioxide is an essential factor in the balance of our planet. But an excess of it causes climate changes that are dangerous for both nature and humans.

🏭 The dark side of energy

Energy production has its price. The burning of fossil fuels in conventional power plants is one of the main reasons for the increase in CO2 emissions worldwide.

🌍 A planet in danger

Global warming threatens our existence. Rising sea levels, melting glaciers and extreme weather events are just some of the consequences.

🌳 Hope on the horizon

Fortunately, there are alternatives. By using renewable energy and using resources more consciously, we can make a difference.

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