Alternative energy sources in maritime transport

Maritime transport has traditionally relied on fossil fuels, but alternative energy sources are becoming increasingly important because of their potential to reduce greenhouse gas emissions and improve air quality. Some alternative energy sources that can be used in maritime transport include:


Biofuels are alternative energy sources produced from renewable organic materials such as vegetable oils, animal fats, and waste. They are being explored as a potential alternative to traditional fossil fuels in maritime transport due to their lower carbon footprint and their ability to reduce greenhouse gas emissions.

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How much Storage do you need for your Solar Park?

Written by Wattcrop team

A colocated solar park is a facility that combines solar photovoltaic (PV) panels with a battery energy storage system (BESS) to provide reliable and efficient electricity to the grid. The optimal ratio of PV to BESS in a colocated solar park depends on several factors, including the location of the facility, the size and type of the PV panels and BESS, and the expected energy demand.

One important factor to consider is the amount of solar insolation, or sunlight, that the location receives. In areas with high solar insolation, a higher ratio of PV to BESS may be more efficient, as the PV panels will produce more electricity than the BESS can store. In areas with lower solar insolation, a lower ratio of PV to BESS may be more appropriate, as the BESS will be able to store more of the electricity produced by the PV panels.

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Heterojunction Technology in Solar Panels

Written by Giannis Taousanidis, electrical engineer at Wattcrop

HJT (heterojunction) panels, also known as HIT (heterojunction with intrinsic thin layer) panels, are the new generation of solar panels. They are known for their high efficiency and improved performance under different weather conditions, making them an attractive option for residential and commercial solar installations. But what sets them apart from traditional solar panels and why are they becoming increasingly popular?

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Νέες τάσεις στην τεχνολογία των φωτοβολταϊκών

Πρώτη δημοσίευση: CLIMA 21

Του Υπάτιου Μωυσιάδη..

Καινοτόμες εφαρμογές και προκλήσεις για μεγαλύτερη διείσδυση, φιλικότερες λύσεις και μείωση του κόστους

Πολλοί είναι εκείνοι οι οποίοι προσπαθούν να προβλέψουν ποια θα είναι η κυρίαρχη τεχνολογία παραγωγής ηλεκτρικής ενέργειας έως το 2050. Το μόνο σίγουρο είναι ότι το μείγμα παραγωγής ηλεκτρισμού δεν θα αποτελείται πλέον από μία κυρίαρχη τεχνολογία, αλλά πολλές διαφορετικές, με συγκεκριμένες εφαρμογές που θα καλύπτουν συγκεκριμένες ανάγκες σε συγκεκριμένες συνθήκες (γεωγραφικές, περιβαλλοντικές, προφίλ κατανάλωσης, κτλ.).

Όσον αφορά τις διαθέσιμες τεχνολογίες που μετατρέπουν την ηλιακή ενέργεια σε ηλεκτρισμό, αυτές είναι δύο, τα γνωστά φωτοβολταϊκά συστήματα (Solar PV ή Photovoltaics) και τα συστήματα ηλιοθερμικής ενέργειας, τα λεγόμενα CSP (Concentrated Solar Power). Από τις δύο αυτές τεχνολογίες τα Φ/Β συστήματα έχουν κυριαρχήσει παγκοσμίως, στην συντριπτική πλειοψηφία των περιπτώσεων και με αυτά θα ασχοληθούμε στο παρόν.

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Parking facilities & electricity generation: a highly sustainable innovation!

Solar energy has been growing rapidly in recent years as the sun is one of the most efficient, economical, and sustainable sources of energy. However, are we making the most of this inexhaustible source?

Hearing solar energy, everyone’s thoughts turn to ground-mounted solar panels on some barren land far away from developed areas. This is because most photovoltaic installations are located in such remote areas because of the easier and more economical installation. Installation in urban areas, on the roofs of buildings, is more difficult and costly.

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The energy autonomy of the islands.

Written by Margarita Kyrkou, surveyor at Wattcrop.

Nowadays, due to the energy crisis experienced by the whole of Europe, there has been increasing reference to energy autonomy. But what does energy autonomy mean?

In the world literature, there are several definitions. Essentially, it is the meeting of the energy needs (electricity, heating & mobility) of a facility through local renewable energy sources, without importing energy and dependence on external factors. Thus, achieving energy independence for these areas.

An example of an area that is energy self-sufficient is the island of Samso in Denmark, the first on the planet. The inhabitants of the island managed to achieve 100% autonomy within 8 years (two years earlier than originally planned). This was achieved through the introduction of modern energy technologies but also through the residents’ efforts to adapt to this change.

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The financial impacts of the climate crisis

Written by Wattcrop team

The financial impacts of the climate crisis are far-reaching and wide-ranging, with the potential to affect virtually every aspect of the global economy. The Intergovernmental Panel on Climate Change (IPCC) has estimated that the total costs of the climate crisis could reach as high as 5% of global GDP each year by the end of the century, with the majority of these costs being borne by lower-income countries and communities.

One of the most immediate financial impacts of the climate crisis is the increasing cost of energy. As temperatures rise, demand for air conditioning and other forms of cooling increases, leading to higher energy costs for individuals and businesses. In the United States, for example, the number of days per year with extreme heat is expected to increase by 50% or more by mid-century, which could lead to a significant increase in energy demand and costs. At the same time, the frequency and severity of natural disasters, such as hurricanes, earthquakes, and wildfires, are also on the rise, which can disrupt energy production and distribution, leading to further increases in energy prices.

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The development stages of RES projects.

Like all types of projects, renewable energy projects follow a specific process. There are 4 main stages, each of them requiring its own specialised staff. These are the stages of pre-development, development, construction and finally, project management and maintenance.

Stage 1

First and very important, is the pre-development stage. This is that phase of the projects in which, after confirming the availability of the grid in an area, the people appointed by the company to find land, look for suitable fields and large pieces of land for the development of photovoltaic and wind projects. Once the necessary land is found, then the company’s experienced team of engineers undertake the necessary inspections. This involves environmental, topographical and archaeological checks in order to confirm the suitability of the land. The last step in the pre-development stage is the legal control on each private or public piece of land.

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7 κύρια συνθετικά στοιχεία στα οποία η Αγορά Ενέργειας πρέπει να δώσει απαντήσεις για την επιτυχημένη ενεργειακή μετάβαση

Πρώτη δημοσίευση: energypress

του Υπάτιου Μωυσιάδη

Το 2022 φεύγει αφήνοντας ένα τοπίο ρευστότητας και αβεβαιότητας. Τόσο η ενεργειακή κρίση η οποία επιδεινώθηκε λόγου του πολέμου στην Ουκρανία όσο και η κλιματική κρίση της οποίας η επιπτώσεις είναι πλέον οφθαλμοφανείς έχουν φέρει στην επιφάνεια τις χρόνιες ελλείψεις και παθογένειες στο χώρο της Ενέργειας τόσο σε Εθνικό όσο και σε Ευρωπαϊκό επίπεδο. Το τρίπτυχο της ενέργειας είναι η Βιωσιμότητα της επένδυσης και της τεχνολογίας με γνώμονα την πράσινη μετάβαση, η Εξασφάλιση προσιτών τιμών και η Ασφάλεια παροχής. Ποια είναι όμως τα συνθετικά στοιχεία στην Αγορά Ενέργειας;

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Key factors for Wind Resource Assessment

Written by Vaggelis Ioannou, electrical engineer at Wattcrop.

Wind resource assessment is the most time-consuming procedure in majority of wind projects, and it determines the future of a project since it provides valuable data for it such as average wind speed, average wind density energy, Annual Energy Production (AEP), losses and uncertainty associated with AEP. Lack of wind resource or insufficient strictness with respect to technical due diligence during wind resource assessment leads to delayed or rejected projects by financiers. Therefore, a proper wind resource assessment is crucial for the project life and timeline.

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