Archives for Renewable Energy

Enjoy Life Without Pollen

In spring and summer our gardens bloom with life. While this may seem nice, it can also cause people suffering from seasonal pollen-related asthma and allergies, such as allergic rhinitis. But what is pollen and how can you protect your family from its possible effects?

What is pollen?

Pollen, which usually appears as a fine powder, is microspores that are transferred from one plant to another, resulting in the fertilization and production of new plants. As temperatures rise, pollen production increases causing a variety of symptoms in people with pollen sensitivity including sneezing, nasal congestion, redness, itchy eyes and tearing and / or itchy nose or runny nose.

Pollen season

There are three main types of pollen that together extend the pollen season from early spring to late autumn.

  • Pollen from grass: It is the main culprit for asthma and pollen allergies associated with pollen and can affect people from March to October. Grass pollen can cause extremely strong reactions.
  • Tree Pollen: While different types of tree pollen occur at different times of the year, tree pollen is usually only a problem from February to June.
  • Weed Pollen: Weed pollen most often causes allergic rhinitis. It usually prevails in summer and early autumn.

Protect your family with Daikin air purifiers

Daikin air purifiers are the perfect way to ensure that indoor air is cleaner, healthier and cleaner, minimizing the negative effects of pollen on your health.

Daikin air purifiers:

Minimize the symptoms of asthma and allergies by removing dust and pollen particles from the air.

They protect your health by filtering out airborne bacteria and viruses, and also eliminate 99.98% of the human coronavirus HCoV-229E.

They inject moisture into the air when it is very dry, helping to keep your skin healthy.

· They control odors so that your home always smells fresh and clean.

Pollen Calendar

Contact Us If You Have Any Questions

We are a proficient company offering a wide selection of services for all size projects in the areas of Solar Energy, Photovoltaic Systems, Geothermal Energy, Net Metering, Swimming Pools, Air Conditioning, Central Heating, all kind of Mechanical Installations. Please contact us if you have any questions!

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    Heat Pump

    Heat Pump For Domestic Hot Water

    What is a Heat Pump?

    A heat pump system circulates heat from an external energy source to a compressor inside a heat pump unit. It can collect low-grade heat from renewable sources such as water, ground or air to compress and deliver heating and hot water to a property.

    Advantages

     The actual set of the heat pump is controlled by a climate curve for preventing that the hot air taken from outside (over 25°C with water at 65°C, over 35°C with water at 55°C) may cause high pressure alarms.

    The electrical heater integrates automatically the temperature of the tank to the desired setting when the actual setting is controlled by the weather curve.

    Predisposition for integration with photovoltaic system. After enabling the photovoltaic inverter, the set temperature will increase to the maximum value (according to the climate control).

    Flexibility and Benefits

    Problem with Space? This is the answer. Compact efficient. Solar and 3rd party heating option connections available.

    Waste heat recovery: the unit can be installed near the kitchen, in the boiler-room or the garage, basically in every room which has a largenumber of waste-heat so that it has the higher energy efficiency even with very low outside temperatures during the winter.

    Hot water, cooling and dehumidification: the unit can be placed in the laundry room, in clothing room, gym or garage. When it produces howater it lowers the temperature and dehumidifies the room as well.

    Compatible with solar energy: the unit can work with a second heat source as solar panels, boilers or other different energy sources (remark: the extra heat source is not provided with). The function for which the unit has been designed is only that of heat pump for DHW production. Any other side effect (ambient cooling, dehumidification, waste heat recovery) should be considered as a perk.

    The performance data are therefore provided only with respect to the function of water heating.

    Technical Features

    • Steel tank with double layer vitrification.
    • Anti-corrosion magnesium stick for assuring the durability of the tank.
    • Condenser wrapped externally to the boiler, free from fouling and gaswater contamination.
    • High thickness polyurethane foam (PU) thermal insulation.
    • Outer shell made of grey colour plastic material.
    • Acoustically isolated top part plastic cover.
    • Highly efficient compressor with the R134a refrigerant.
    • High and low gas pressure protections.
    • Electrical heater available in the unit as a back-up (with integrated thermo cut out with protection set at 90°C), assuring constant hot water even in extreme cold winters.
    • ON-OFF contact for starting the unit from an external switch.
    • Weekly disinfection cycle.
    • Possibility of manage hot sanitary water re-circulation or solar water integration (presence of a dedicated temperature probe, flow switch input and command for an external pump).
    • Electronic expansion valve for precise control
    • The pipeline intake/discharge of the air can be reduced from 177 to 160 mm by a reduction / diaphragm (not provided) inserted into the end of the pipeline.

    Contact Us If You Have Any Questions

    Please use this form to contact us  to discuss your ground source heat pump requirements or to enquire further about our market-leading heat pump services.

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      Solar Thermal

      How It Works

      Have you ever felt warm water trickle out of a garden hose that’s been sitting in the sun? If so, then you have witnessed solar water heating in action.

      Now imagine that same water moving slowly though a system specifically designed to heat and store water – that is the essence of solar thermal water heating. People have for centuries used water heated by the sun and stored it for bathing, hand washing, cleaning clothes, heating homes and much more. The solar thermal systems used today combine the most efficient techniques for capturing the sun’s heat with modern plumbing systems to produce cost-effective hot water and reduce the need for gas or electricity to heat water.

      A Solar Thermal system works by harnessing the sun’s energy and converting it into heat, that is then transferred to your home or business. The solar collector utilises the sun’s rays to heat a transfer fluid which is a mixture of water and glycol, to prevent the water from freezing in the winter. There are a number of different solar thermal designs, but all are based on the same simple principle as the garden hose. Each has its pros and cons, and each is suitable for a specific application. 

      Types of Systems

      An important distinction among solar thermal systems is whether they are of direct or indirect design.

      Indirect system

      In an indirect system, also known as “closed loop,” a simple pump moves the antifreeze solution through a loop into the solar collector, through the collector’s pipes, and out of the solar collector. Then, the sun-warmed antifreeze solution flows into a heat-transfer unit where it warms the cool water heading into a conventional hot water tank. The antifreeze solution then returns to the pump and again flows into the solar collector without ever mixing with the building’s water. Indirect systems are encouraged in climates with extended periods of below-freezing temperatures. We primarily install these types of systems. We find they produce the greatest amount of energy, more consistently, with a greater service life than other types of systems.

      Direct system

      A direct system, also known as “open loop,” is a little simpler. There is no antifreeze solution; the water heated directly by the sun is the same water used by building occupants. A thermometer and controller sense when the solar collector is warm and ready to heat water. The controller starts a pump that moves cold water into the solar collector, where it is heated. The solar heated water is then stored in a conventional hot water tank. It is typical, especially during high use or periods of little sun for the water to be kept warm through supplemental gas or electricity. This type of system, because it circulates pure, potable water through an outdoor collector, is susceptible to freezing in many climates, unless safeguards are added.

      Applications of Solar Thermal

      • Solar Thermal Under floor heating

      • Solar Thermal Heating of domestic water

      • Solar Thermal Heating of the pool

      • Combination of the above

      Contact Us If You Have Any Questions

      We can provide you solutions for an integrated solar thermal system and we can advice you how you can minimize your energy costs by utilizing the sun as a source of renewable energy.

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        mechanical installations

        Geothermal Energy

        Geothermal energy is heat derived within the sub-surface of the earth. Water and/or steam carry the geothermal energy to the Earth’s surface. Depending on its characteristics, geothermal energy can be used for heating and cooling purposes or be harnessed to generate clean electricity. A geothermal energy cooling / heating system is based on using the full potential of the constant temperature and thermal conductivity of the earths substructure.

        We can see this phenomenon in basement areas where during the summer the area is cool and during the winter warm without the use of air conditioning.

        Geothermal energy can be broken down into two categories: open loop systems and closed loop systems.

        Open loop geothermal energy for cooling / heating is the pumping of under ground water source through a heat pump (or VRV) and the return of the water after the energy transfer. This method needs a constant water supply.

        mechanical installations

        Closed loop Geothermal energy systems can be divide into two categories.

        Horizontal closed loop Geothermal energy system is installed at least 1.5 meters below the ground with pipe spacing of at least 1.8 – 2.2  Rm per m². Output is 20 – 35W/m². This system has the disadvantage of requiring a large area to be installed.

        mechanical installations

        Vertical closed loop Geothermal energy system where the loop is installed in a vertical bore well (6” – 8” diameter) and 60 – 120 deep. The minimum distance between the wells is 5 meters and the output is 40-70W/meter of depth, and depending on the soil structure. This system is more popular as you need less space and have a higher output.

        mechanical installations

        The heat which is collected from the earth is transferred to the  system (heat pump, chiller, VRV, etc.) and the exchange is made via heat exchangers and transferred to the cooling circuit of the unit as in a normal system. Due to the fact that the temperature is constant in the earth (±18.5°C) the energy required for this  this process is much less than in a normal system where the  air temperature is 40°C in summer and 5-10°C in winter.

        Geothermal  energy can be used for under floor heating, fan coils, or for VRV systems, and the savings in comparison to a normal Air to water system can be up to 50-60% depending on the application and use of system.     

        Contact Us If You Have Any Questions

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          Photo Credits: Shutterstock

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          net metering cyprus

          Τι είναι το Net Metering και πως να επωφεληθείς – Εγκαταστάσεις Φωτοβολταϊκών με επιχορήγηση και γρήγορη απόσβεση!

          Ακόμη πληρώνεις ρεύμα; 

          Το Net Metering είναι η εγκατάσταση μικρού ΦΒ συστήματος ισχύος μέχρι 10 KWp σε μόνιμες κατοικίες ή επαγγελματικά υποστατικά, το οποίο πετυχαίνει εξοικονόμηση ενέργειας μέχρι και 17000 KWh ετησίως.

          ΜΟΝΟ η διαφορά κατανάλωσης ηλεκτρικής ενέργειας πληρώνεται στην ΑΗΚ, συν τα ετήσια τέλη! 

          Με βάση τα Σχέδια Χορηγιών Ανανεώσιμων Πηγών Ενέργειας & Εξοικονόμησης Ενέργειας, για εγκατάσταση ΦΒ Συστήματος με τη μέθοδο συμψηφισμού γίνεσε αυτόματα δικαιούχος για επιχορήγηση €250 ανά εγκατεστημένο kW με μέγιστο ποσό τα €1000 (ΚΑΤΗΓΟΡΙΑ 3Α).

          Πως θα γίνει αυτό;

          1. Θα επισκεφτούμε το χώρο σας και θα κάνουμε τη μελέτη για τις ανάγκες του υποστατικού σας.

          2. Θα υποβάλει η εταιρεία μας αίτηση για έγκριση στην Αρχή Ηλεκτρισμού Κύπρου.

          3. Μετά την έγκριση θα γίνει η εγκατάσταση του συστήματος.

          4. Μετά την ολοκλήρωση της εγκατάστασης, η εταιρεία μας θα υποβάλει αίτηση για έλεγχο από την Αρχή Ηλεκτρισμού Κύπρου, όπου θα οριστεί η ημερομηνία ελέγχου.

          5. Μετά την έγκριση από την επίσκεψη ελέγχου, και αφού έχει ξοφληθεί η προμήθεια και εγκατάσταση του συστήματος, η εταιρεία μας θα ετοιμάσει την αίτηση για επιχορήγηση, η οποία παραχωρείτε απευθείας στον δικαιούχο μέσω του τραπεζικού του λογαριασμού.  

          Αναλόγως του συστήματος και της χρήσης ρεύματος, η απόσβεση της αρχική επένδυσης προβλέπετε σε 3-6 χρόνια, κάτι το οποίο θα είναι ξεκάθαρο όταν γίνει η ακριβής μελέτη του υποστατικού σας.

          Για περισσότερες πληροφορίες ή διευθέτηση ραντεβού, μπορείτε να επικοινωνήσετε μαζί μας συμπληρώνοντας τα στοιχεία σας πιο κάτω.

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            photovoltaics cyprus

            Government Subsidy For Installation of Net Metering Photovoltaic Systems 2019

            According to the announcement of the Ministry of Energy, Commerce of industry and tourism, with the approval of the budget for 2019, a plan of grants for installation of Net Metering Photovoltaic Systems in homes is expected.

            The fund will cover the following projects:

            • Review of the plan for thermal insulation of existing houses, which is in effect from 8/10/2018, with an increase in the amount of their subsity for those who have already applied and for those who will apply.
            • Insulation of roofs of existing houses in combination with installation of Net Metering Photovoltaic Systems.
            • Installation of Net Metering Photovoltaic Systems.
            • Installation of Net Metering Photovoltaic Systems for the purpose of charging a plug-in electric or hybrid vehicle.

            For more information, contact us here. 

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            net metering cyprus

            Επιδότηση Για Εγκατάσταση Φωτοβολταϊκού Συστήματος 2019

            Σύμφωνα με ανακοίνωση του Υπουργείου Ενέργειας, Εμπορίου Βιομηχανίας & Τουρισμού αναμένεται, με την έγκριση του προϋπολογισμού 2019, να ανακοινωθεί Σχέδιο Επιχορηγήσεων Για Εγκατάσταση Φωτοβολταϊκού Συστήματος Net Metering σε οικίες.

            Το σχέδιο θα αφορά ΟΛΟΥΣ τους οικιακούς καταναλωτές ΧΩΡΙΣ οικονομικά κριτήρια και θα έχει αναδρομική ισχύ από την 1η Νοεμβρίου 2018 (Αυτό που θα λαμβάνεται υπόψιν είναι η ημερομηνία ελέγχου και πιστοποιητικού καταλληλόλητας της ΑΗΚ).

            photovoltaic cyprus

            Επικοινωνήστε μαζί μας για περισσότερες πληροφορίες.

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            cyprus renewable energy

            Save Energy and Money – Go Green Today!

            WHY?

            The production of electricity from sunlight is gaining popularity worldwide. Installation of your own photovoltaic system is a sound investment. 

            Still not sure? We can pay you a visit for a free site consultation! Z&X Mechanical Installations can provide you with the best options for your needs. Our professional team of trained and experienced engineers can advise you on the most productive photovoltaic system for your needs.

            Click HERE and find out about some of our residential and corporate projects successfully completed over the years.

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            photovoltaic systems cyprus

            Why Photovoltaics

            Solar-generated electricity produces no greenhouse gases or emissions of any kind. Solar energy is a rapidly growing form of electricity generation. There are numerous advantages to using the sun to produce electricity

            photovoltaic systems cyprus

            For power generation through photovoltaic primarily only two inexhaustible raw materials are needed : sun and sand. The fuel—sunlight—cannot be embargoed. We are not expecting any conflicts about these resources . It promotes security and energy independence. Solar energy does not require import of fuels.
            It has fewer environmental impacts than electricity generation with fossil fuel or nuclear power plants. No mining or transportation of fossil fuels are required to generate electricity with the sun. Photovoltaic systems produce electricity without pollution. When operating no waste products are generated.
            PV is a source of peak power. Electricity has the biggest value when it is produced at the times of high demand. PV Power plants deliver electricity on daytime, when people work and factories and offices need electricity.

            PV is a good combination with Wind Energy. Windpower plants produce most in winter times and in bad weather conditions. PV produces electricity in the summer, when wind plants are often not producing.
            Because solar energy is available everywhere , this may make a very good contribution to economic development in less developed areas.

            photovoltaic systems cyprus

            Also for small businesses and individual consumers photovoltaics can represent an economic advantage. When producing electricity on their own roofs , the possibity of cost advantages compared to electricity purchases from the grid appear and make the usage of photovoltaic meaningful.
            A few years ago, the electricity production had enjoyed a monopoly almost exclusively in the hands of corporations , who were also operators of transmission networks. Electricity was almost exclusively produced by large scale central power plants .
            Today, 15-20% of the electricity is produced locally from renewable sources in a number of European countries. Solar energy contributes significantly in addition to wind energy.

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