Cleantech Geek

Alternative energy sources in maritime transport

March 10, 2023/in Cleantech, Renewable Energy, Sustainability/by Eleni Gkagkani

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

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.

How much Storage do you need for your Solar Park?

March 1, 2023/in Cleantech, Renewable Energy/by Eleni Gkagkani

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.

Heterojunction Technology in Solar Panels

February 22, 2023/in Cleantech, Renewable Energy/by Eleni Gkagkani

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?

Νέες τάσεις στην τεχνολογία των φωτοβολταϊκών

February 10, 2023/in Cleantech, Renewable Energy/by Eleni Gkagkani

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.

Parking facilities & electricity generation: a highly sustainable innovation!

February 3, 2023/in Cleantech, Renewable Energy, Sustainability/by Eleni Gkagkani

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.

The energy autonomy of the islands.

January 23, 2023/in Cleantech, Renewable Energy/by Eleni Gkagkani

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.