Is solar energy a new source of energy?

Introduction Is solar energy a new source of energy? Solar energy is a renewable energy source. It refers to the radiant thermal energy of the sun (see the three modes of propagation of thermal energy: radiation). Its main manifestation is what is often called solar r

Is solar energy a new source of energy?

Solar energy is a renewable energy source.

It refers to the thermal radiation energy of the sun (see the three modes of propagation of thermal energy: radiation), and its main manifestation is often called solar rays. Nowadays, it is typically used to generate electricity or provide energy for water heaters.

Basic Features:

Advantages:

(1) Universal: The sun shines on the earth, without geographical restrictions, no matter the land or the ocean, no matter the mountains or the islands, they are everywhere. They can be directly developed and used, easy to collect, and do not require mining or transportation.

(2) Harmless: The development and use of solar energy will not pollute the environment. It is one of the cleanest sources of energy, which is extremely valuable todaytoday as environmental pollution becomes more and more serious.

(3) Huge: The energy of solar radiation that reaches the Earth's surface each year is approximately equivalent to 130,000 billion tons of coal, and its total amount constitutes the greatest energy that can be developed in the world today.

(4) Long term: Based on estimates of the rate of nuclear energy produced by the sun, hydrogen storage is sufficient to last tens of billions of years, and the duration life of the Earth is also about billions of years. In this sense, we can say that the energy of the sun is inexhaustible. ?[3]?

Disadvantages:

(1) Dispersion: Although the total amount of solar radiation reaching the Earth's surface is large, the density of the energy flow is very weak. On average, near the Tropic of Cancer, when the weather is relatively clear in summer, the radiation irradiancesolar energy is maximum at noon, and the average solar energy received over an area of ​​1 square meter perpendicular to the direction of sunlight is about 1,000 W if the average day and night throughout the year is only of about 200 W. In winter it is only about half, and on cloudy days it is usually only about 1/5. This energy flow density is very low. Therefore, when using solar energy, if we want to obtain a certain conversion power, we often need a set of collection and conversion equipment with a considerable area, which is expensive.

(2) Instability: due to the limitations of natural conditions such as day and night, season, geographic latitude and altitude, as well as the influence of random factors such as clear , cloudy, cloudy, rain, etc., reaching a certain ground Solar irradiation is both intermittent and extremelyt unstable, making it more difficult to apply solar energy on a large scale. In order to make solar energy a continuous and stable energy source and ultimately become an alternative energy source that can compete with conventional energy sources, the problem of energy storage must be well solved , that is, the energy of solar radiation during clear days should be stored as much as possible for use at night or when it rains. It is used for everyday use, but energy storage is also one of the weakest links in solar energy use.

(3) Low efficiency and high cost: The level of development of solar energy utilization is theoretically feasible in some aspects and technically mature. However, some solar energy utilization devices have low efficiency and high cost, and the current utilization efficiency inlaboratory does not exceed 30%. In general, the economy cannot compete with conventional energy. For a considerable period of time, the future development of solar energy use will be mainly limited by economic reasons.

(4) Pollution of solar panels: At this stage, solar panels have a certain lifespan. Typically, they need to be replaced every 3 to 5 years at most, and replaced solar panels are very difficult to replace. polluted by nature decompose, causing considerable pollution.

Is solar energy a primary energy source or a secondary energy source?

Renewable energy: energy that people can regularly supplement and permanently regenerate in nature.

Most new energy sources are renewable energy sources.

New energy sources mainly include the following types :

Geothermal energy --- The interior of the earth is hot When surface water enters the interior of the earth, it is transformed. in the steam. Use pipes to transport this steam and can be used to generate electricity or heat.

Solar energy, i.e. energy from solar radiation, can be used for heating, hot water supply, electricity generation, etc. Solar power plants have been developed abroad to directly supply households with electricity.

Wind power: Wind turbines drive small generators to produce electricity, and large-scale wind turbines are currently under development.

Waste energy: Waste and waste can be transformed into gas and oil through processing, or burned to generate heat to produce electricity.

Biomass energy – refers tothe energy contained in biomass, also called “green energy”.

Tidal power: uses the rise and fall of tides to produce electricity.

Ocean thermal power - uses the difference in seawater temperature to produce electricity. The temperature of sea water on the ocean surface and in the depths can differ by 25°C. This type of power plant can be built on an offshore dock or near the seaside to provide industrial power.

Wave energy - uses energy obtained from the force of waves to produce electricity.

Nuclear fusion energy is at the exploratory stage.

New energies have little impact on environmental protection and deserve research, development and promotion.

Primary energy.

Solar energy is a primary energy source. It is a source of energy renew and an indispensable element of human life.

Solar energy is a renewable energy source, which refers to the energy of thermal radiation from the sun. Its main manifestation is often called solar rays. In modern times, it is generally used to generate or supply electricity. Energy for water heaters. Since the birth of life on earth, we have relied primarily on thermal radiation energy provided by the sun to survive. Since ancient times, humans have also known how to use sunlight to dry objects and use it as a drying method. preparing food, such as preparing salt and drying salted fish.

As for primary energy, it refers to energy obtained from nature and used directly without modification or transformation, such as raw coal, crude oil, natural gas, hydraulic energy , wind power, energysolar, ocean energy, tidal energy and geothermal energy. Natural uranium ore, etc.

Disposable energy is divided into renewable energy and non-renewable energy. The first refers to natural energy that can be produced repeatedly, including solar energy, wind energy, tidal energy, geothermal energy, etc. a little less, mainly All types of fossil and nuclear fuels are an indispensable part of life.

  • Popular Focus
  • Where is the cheapest battery wholesale?

    Where is the cheapest battery wholesale in Tangxia, Sanyuanli, Baiyun District? There is an enterprise specializing in the independent production of electric vehicles in Tangxia, Sanyuanli, Baiyun District, Baiyun Sanyuanli Avenue, Baiyun Sanyuanli Street
    08-02
  • Four 3.7V lithium batteries in series and parallel produce 7.4V/4.4A. How to reduce it to 4.8V/4.4A?

    Four 3.7V lithium batteries in series and parallel produce 7.4V/4.4A. I personally think it is impossible to reduce it to 4.8V/4.4A. Because the discharge platform of lithium batteries is generally set
    08-10
  • What are the materials of the negative electrodes of lithium batteries?

    What are the materials of the negative electrodes of lithium batteries? The main commercial applications of lithium batteries include graphite, which is a sheet of copper used to guide current and which does not react. another safe
    08-02
  • The difference between 18500 and 26500 batteries

    What is the difference between 18500 and 26500 batteries? The answer above is 18650. The person asking the question should ask what is the difference between 18505 and 26500 batteries. In the case of Fuant ER1
    08-02
  • What does 3.7V 80mAh written on a lithium battery mean?

    What does 3.7V 80mAh written on a lithium battery mean? 3.7 V, 80 mA = 0.08 A, H means 1 hour, or 3600 seconds. Taken together, it is
    08-02
  • How long does a lithium battery (cell phone battery) last?

    How long does a lithium battery (cell phone battery) last? The lifespan of mobile phone batteries, under normal conditions of use and without serious impact, the lifespan set by the manufacturer must be 5 years.
    08-02
  • Will lithium batteries explode when charging?

    Will lithium batteries explode when charged? Will lithium batteries explode when charged? Lithium battery explosions usually occur during the charging process, because the negative electrode material of lithium batteries is graphite or other carbon materi
    08-02
  • Parameters of lgdas31865 lithium battery

    Parameters of lgdas31865 lithium battery The parameters of lgdas31865 lithium battery are as follows: LGDAS31865 is a model 18650 lithium battery with a capacity of
    08-02
  • What are the main components of lithium battery electrolyte?

    What are the main components of lithium battery electrolyte? The composition of lithium battery electrolyte is shown below. 1. Ethylene carbonate: molecular formula C3H4O3. Colorless transparent liquid (>35℃), room temperature
    08-02
  • Who are the lithium battery manufacturers in Shandong?

    What are the lithium battery manufacturers in Shandong? Shandong Shengyang Power Supply Co., Ltd. and Shandong Weineng Environmental Protection Power Technology Co., Ltd. 1. Shandong Shengyang Power Supply Co., Ltd. is located in Shengyang, Qufu City.
    08-02
  • Types of drone batteries available in 2024

    Part 1. Types of drone batteries available in 2024In 2024, drone batteries have advanced significantly, offering a range of options to cater to various needs in
    07-30
  • How long does it take to charge 26650 battery?

    How long does it take to charge a 26650 battery? The charging time for a 26650 battery is generally between 3 and 6 hours, but the precise time depends on the power of the charger and the capacity of the battery. in general
    08-02
  • For what?Sure, here's an article based on the phrase "For what?

    The simple yet profound question, "For what?" often serves as a gateway to deeper reflections on purpose and intention. It is a query that invites us to delve into the reasons behind actions, decisions, and circumstances that shape our lives and the wor
    08-02
  • Choosing the Right Cart Battery

    This comprehensive guide will walk you through everything you need about cart batteries, from understanding different types to making an informed purchase decision.
    08-02
  • 30mAh~500mAh 3.7 V Li-ion Battery

    Welcome to Ufine's collection of 3.7V lithium-ion batteries ranging from 30mAh to 500mAh. Explore a diverse range of compact and lightweight batteries suitable for various electronic devices,
    08-02
  • Here are 10 essential facts about drone batteries for 2024.

    10 Key Facts About Drone Battery for 2024 In 2024, drone batteries have advanced significantly, offering a range of options to cater to various needs in the consumer, commercial, and industrial sectors. Below are the primary types of drone batteries avai
    08-02
  • Could you please explain the difference among IMR, ICR, INR, and IFR 18650 batteries?

    What is the Difference Between IMR, ICR, INR, and IFR 18650 Battery?In 18650 batteries, discerning the differences among IMR, ICR, INR, and IFR types is fundamental for tailored and efficient battery usage. These distinct
    08-02
  • Safety considerations for cart batteries

    Selecting the ideal cart battery is crucial for ensuring optimal performance and longevity of your electric vehicle or vaping device. This comprehensive guide w
    08-01