Net Billing Project for the Human Resource Development Agency of Cyprus (ANAD)
Net Billing is a forward-thinking self-consumption scheme developed by the Republic of Cyprus to help businesses and government buildings minimize their electricity costs. This innovative approach requires the precise and efficient design of photovoltaic (PV) systems that consistently meet the power demands of each building without overproduction. By ensuring that systems are perfectly sized, excess energy—considered waste for prosumers focused on efficiency and cost-effectiveness—is eliminated. This strategy not only promotes sustainability but also reduces operational costs over time.
In the summer of 2020, the Human Resource Development Agency of Cyprus (ANAD) sought our expertise to design a comprehensive 44 kWp self-consumption PV system. Our role encompassed the complete technical design, the creation of a detailed health and safety plan, and the provision of all necessary electrical and construction specifications. Additionally, we meticulously prepared all relevant legal documents required for the tender process, ensuring compliance and thoroughness at every step.
The project timeline faced significant hurdles due to the COVID-19 pandemic and the economic disruptions caused by the conflicts in Ukraine and Gaza. These unforeseen challenges necessitated a reassessment and adjustment of the delivery plan. By proactively rescheduling the contractor’s timeline to 2023, we successfully mitigated potential misunderstandings and maintained clear communication between all parties involved. This strategic adjustment was crucial in ensuring the project stayed on track, meeting all deadlines and expectations despite the external pressures.
Our careful planning and flexible management created a 44 kWp PV system for ANAD that aligns with the building's energy needs, boosting efficiency and cost-effectiveness. This project supports Cyprus’s sustainability goals while offering ANAD a reliable, economical energy solution.
If you’re considering a solar PV project, whether it’s for self-consumption under the Net Billing scheme or another renewable energy initiative, CAS Electrical Consulting is here to assist. Our comprehensive electrical design and project management services ensure your project is efficiently planned and flawlessly executed. Contact us today to leverage our expertise and make your sustainable energy vision a reality.
The engineering contract with HRDA includes 5 years of supervising the contractor's maintenance period to support performance and reliability, ensuring regular inspections and maximizing installation longevity.
All PV System components were organized in a designated area, enabling staff to efficiently set up DC strings, make AC connections, and perform regular maintenance without disruptions.
An inclined rooftop structure was chosen because of lack of space, to prevent shading, maximize direct sunlight on solar panels, and protect building equipment from high heat exposure to increase their lifetime.
The HRDA Building has an upgraded Lightning Protection System compliant with BS EN 62305. All metallic parts of the PV System are connected for enhanced safety and reliability.
Employee and contractor safety were key considerations in our comprehensive Health and Safety study, as we aimed to create a work environment that prioritizes well-being and minimizes risks.
Project design can be changed if needed. We suggested to HRDA and the Contractor to use higher-capacity solar panels to boost solar power input by adding new panels in the near future.
All DC cables used were red and black for positive and negative terminals. They were directed to a box with DC surge protective devices to safeguard the PV systems.
The AC connection from the PV AC Panel to the Main Switchboard uses a four-core 25 mm² PVC armored cable, routed through a metallic cable tray on the rooftop and inside ducts to the basement.
The PV system was divided into two equal solar inverters to improve efficiency and reliability, ensuring optimal performance and maximizing energy production.
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