Management of Renewable Energies and Environmental Protection, Part I

August 13th, 2022 by dayat No comments »

Abstract: The purpose of this project is to present an overview of renewable energy sources,Guest Posting major technological developments and case studies, accompanied by applicable examples of the use of sources. Renewable energy is the energy that comes from natural resources: The wind, sunlight, rain, sea waves, tides, geothermal heat, regenerated naturally, automatically. Greenhouse gas emissions pose a serious threat to climate change, with potentially disastrous effects on humanity. The use of Renewable Energy Sources (RES) together with improved Energy Efficiency (EE) can contribute to reducing energy consumption, reducing greenhouse gas emissions and, as a consequence, preventing dangerous climate change. At least one-third of global energy must come from different renewable sources by 2050: The wind, solar, geothermal, hydroelectric, tidal, wave, biomass, etc. Oil and natural gas, classical sources of energy, have fluctuating developments on the international market. A second significant aspect is given by the increasingly limited nature of oil resources. It seems that this energy source will be exhausted in about 50 years from the consumption of oil reserves in exploitation or prospecting. “Green” energy is at the fingertips of both economic operators and individuals. In fact, an economic operator can use such a system for both own consumption and energy trading on the domestic energy market. The high cost of deploying these systems is generally depreciated in about 5-10 years, depending on the installed production capacity. The “sustainability” condition is met when projects based on renewable energy have a negative CO2 or at least neutral CO2 over the life cycle. Emissions of Greenhouse Gases (GHG) are one of the environmental criteria included in a sustainability analysis, but is not enough. The concept of sustainability must also include in the assessment various other aspects, such as environmental, cultural, health, but must also integrate economic aspects. Renewable energy generation in a sustainable way is a challenge that requires compliance with national and international regulations. Energy independence can be achieved: – Large scale (for communities); – small-scale (for individual houses, vacation homes or cabins without electrical connection).

Keywords: Environmental Protection, Renewable Energy, Sustainable Energy, The Wind, Sunlight, Rain, Sea Waves, Tides, Geothermal Heat, Regenerated Naturally.

Introduction

The purpose of this project is to present an overview of renewable energy sources, major technological developments and case studies, accompanied by applicable examples of the use of sources.

Renewable energy is the energy that comes from natural resources: The wind, sunlight, rain, sea waves, tides, geothermal heat, regenerated naturally, automatically.

Greenhouse gas emissions pose a serious threat to climate change, with potentially disastrous effects on humanity. The use of Renewable Energy Sources (RES) together with improved Energy Efficiency (EE) can contribute to reducing energy consumption, reducing greenhouse gas emissions and, as a consequence, preventing dangerous climate change.

At least one-third of global energy must come from different renewable sources by 2050: The wind, solar, geothermal, hydroelectric, tidal, wave, biomass, etc.

Oil and natural gas, classical sources of energy, have fluctuating developments on the international market. A second significant aspect is given by the increasingly limited nature of oil resources. It seems that this energy source will be exhausted in about 50 years from the consumption of oil reserves in exploitation or prospecting.

“Green” energy is at the fingertips of both economic operators and individuals.

In fact, an economic operator can use such a system for both own consumption and energy trading on the domestic energy market. The high cost of deploying these systems is generally depreciated in about 5-10 years, depending on the installed production capacity.

The “sustainability” condition is met when projects based on renewable energy have a negative CO2 or at least neutral CO2 over the life cycle.

Emissions of Greenhouse Gases (GHG) are one of the environmental criteria included in a sustainability analysis, but is not enough. The concept of sustainability must also include in the assessment various other aspects, such as environmental, cultural, health, but must also integrate economic aspects.

Renewable energy generation in a sustainable way is a challenge that requires compliance with national and international regulations.

Energy independence can be achieved:

Large scale (for communities)
Small-scale (for individual houses, vacation homes or cabins without electrical connection)
Today, the renewable energy has gained an avant-garde and a great development also thanks to governments and international organizations that have finally begun to understand its imperative necessity for humanity, to avoid crises and wars, to maintain a modern life (we can’t go back to caves).

Materials and Methods

Solar Energy

Solar energy means the energy that is directly produced by the transfer of light energy radiated by the Sun into other forms of energy. This can be used to generate electricity or to heat the air and water. Although solar energy is renewable and easy to produce, the main problem is that the sun does not provide constant energy over a day, depending on the day-night alternation, weather conditions, season.

Solar Panels generate electricity approx. 9h/day (the calculation is minimal, the winter is 9 h), feeding the consumers and charging the batteries at the same time.

Solar installations are of two types: Thermal and photovoltaic.

Photovoltaics produce electricity directly, thermal ones help save 75% of other fuels (wood, gas) per year. A house that has both solar installations (with photovoltaic and vacuum thermal panels) can be considered “energy independence” (because the energy accumulated in the day is then sent to the grid and used as needed).

The use of solar radiation for the production of electricity can be done by several methods:

The use of photovoltaic modules – by capturing the energy of the photons coming from the sun and storing it in free electrons, thereby generating an electric current, solar photovoltaic panels generating electricity
The use of solar towers
Using Parabolic Concentrators – This type of concentrator consists of a gutter-shaped parabolic mirror that concentrates solar radiation on a pipe. A working fluid is circulating in the duct which is generally an oil that takes up the heat to give it water to produce the steam that drives the turbine of an electric generator. The concentrator requires adjusting the posture position of the sun in the apparent daytime displacement
Using the Dish-Stirling system
Solar installations work even when the sky is dark. They are also resistant to hail (in the case of the best panels).

Solar-thermal systems are mainly made with flat-bottomed solar collectors or vacuum tubes, especially for smaller solar radiation in Europe. In the energy potential assessments, applications concerning water heating or enclosures/swimming pools (domestic hot water, heating, etc.) were considered.

Locations for solar-thermal applications (thermal energy).

In this case, any available space can be used if:

Allows the location of solar thermal collectors
Preferential orientation to the South and inclination according to

When do I need an electrical assessment or inspection for my business?

May 13th, 2022 by dayat No comments »

When do I need an electrical assessment or inspection for my business? A poorly maintained electrical system could eventually lead to a disaster that is why it is so important to hire a commercial electrician to perform an electrical assessment for your business.

Electricity is something we use every day in a commercial setting,Guest Posting for all of our business systems to operate. The problem is we often forget how important it is to maintain our electrical systems.

This can be taken for granted as we are able to access and use it at any time, but a poorly maintained electrical system could eventually lead to disaster. This is why it is so important to hire a commercial electrician to perform an electrical assessment for your business. Different Australian states and territories may have different regulations, so it is best to contact your local commercial electrical association to find out what is required for your state. For example, if you live in Brisbane you should make sure you contact NECA in Queensland, or specifically a Commercial Electrician Brisbane instead of one that serves another state.

What is an electrical assessment?

An electrical assessment is an inspection carried out by a licensed electrician that aims to determine the condition of all electrical installations around a home or commercial building. The licensed electrician is able to recognise any potential hazards or electrical issues that may be present.

Upon identifying potential hazards, it’s important to attend to the problem and have it fixed immediately to prevent any further damage to your building.

During the assessment, the electrician will test certain appliances, outlets, circuits, and wiring. In order to ensure that the assessment covers all areas of the business, testing should be performed both inside and outside the building. Testing should also be performed on the switchboard to make sure it is functioning correctly. After all, components have been assessed, the electrician will record their findings in a report.

Why is an electrical assessment so important?

Safe Work Australia recorded 129 fatalities over a ten-year period from 2003 to 2013, all of which were related to individuals coming into contact with electricity. This confronting figure indicates how important electrical safety is in the workplace.

With consistent electrical assessments, it’s possible to significantly reduce the risk of electrical hazards and keep your business safe. Make sure to contact a licensed commercial electrician if you require an electrical assessment for your business. Ensure that your electrician has all the relevant licenses that are correct and up to date.

When do I need to get an electrical assessment?

Energy Safe recommends that commercial properties should book an electrical inspection if the property is more than 25 years old. Older buildings are more prone to electrical issues due to the age of the wiring which can begin to erode or become loose over time.

It’s also recommended that an inspection should be carried out prior to selling a property or when buying a previously occupied property. The building’s electrical setup may not have been assessed for some time before the sale, especially if the building has not been in use for some time. Always hire a licensed electrician to carry out an inspection to ensure that your building is safe for future owners or your own employees.

Energy Safe also recommends that an inspection be carried out if you are concerned about old wiring and equipment. If you suspect that something may be damaged or faulty, chances are that your suspicions are correct. Even if you may be unsure, an electrical assessment will rule out any potential risks that could occur if there are electrical faults in the building. All commercial buildings should be inspected once every five years to ensure that there are no electrical or fire hazards present in the building.

An electrical assessment should also be performed after installing any new electrical wiring or devices. Correct installation is vital for safety, so hiring a licensed, commercial electrician to perform an inspection will ensure that the installation is safe to use. Make sure that the electrical contractor provides a sign of safety certificate as proof. It is illegal to complete the work without providing a certificate and the electrician may lose their license for doing so.

Ultimately, an electrical assessment should be booked if the building is old, if you have concerns about faulty wiring or electrical installations in the building, or if you have had new electrical systems installed.

Make sure to contact a commercial electrician immediately if you begin to notice electrical issues. If you’re searching for an electrical contractor in Sydney or other states in Australia, Elec Comm is renowned for providing high-quality electrical assessments for commercial businesses.

With years of experience, our licensed electricians will provide quality customer service and reliable assessments to ensure your business is as safe as possible. Our electricians have relevant, up to date licenses so that you can be sure you’re in safe hands.