We are building and testing solutions for the future widescale rollout of hybrid microgrids. Our aim is to enhance the reliability and resilience of decentralised renewables-based power systems. Contact online >>
We are building and testing solutions for the future widescale rollout of hybrid microgrids. Our aim is to enhance the reliability and resilience of decentralised renewables-based power systems.
Most renewables and modern electrical devices use direct current while most grid infrastructure works on alternating current. To tackle this, our experts are designing and setting up 2 pioneering hybrid microgrids in real-life conditions and will then deploy 2 use cases to ensure replicability of the solutions.
Struggling to keep pace with the growing share of renewables, the grid is turning into a bottleneck in the energy transition. From DC integration to hybrid microgrids, how emerging technologies are tackling the infrastructure challenge
The widespread diffusion of photovoltaics is the first of the essential prerogatives to achieve the energy goals set for 2030 by the United Nations. The second is the rapid spread of Energy Communities, starting from the low voltage network, thanks to the enabling of energy sharing through the SNOCU Regalgrid.
In Italy, the diffusion of photovoltaics began in the 1970s: the first system was installed in 1979 at the Mandriola Pass. However, we have to wait until the 90s for a massive diffusion of photovoltaics, which was then further facilitated by the first state incentives, the so-called Conto Energia, starting from the 2000s. The numbers acquired greater significance towards 2009, the year of the European Directive first objectives in terms of production and consumption of energy from renewable sources (2009/28 / EC).
Since then, the spread of solar panels has never stopped and the trend continues to be positive even after 15 years. This has thus become a decisive factor for the formation of the Energy Communities approved also in Italy last March 2020.
Regalgrid has always supported and believed in photovoltaics and, with a far-sighted look, in sharing energy. For this reason, while photovoltaics entered the homes of Italians, it worked incessantly on advanced algorithms and technologies that would allow a leap into the future of digital energy and the decentralized distribution model based on smart grids.
The diffusion of Energy Communities in Italy officially started on March 1, 2020, with the conversion into law of the Milleproroghe Decree, a first milestone on the road towards the implementation of the European Directive RED II which will take place by 2021.
But Italy has been attentive and active in the production and consumption of energy from renewable sources since much earlier. In the electricity sector, GSE data show in 2005 a share of energy from RES equal to 16.3% of gross domestic consumption, which reached 33.4% in 2014, the year in which Italy exceeded the National Overall Target 2020 (which includes electricity, heat and transport consumption) 6 years in advance, reaching 17.1%.
Since that year, both overall and electrical consumption of energy from renewable sources have continued to grow. The latest official data of the GSE reports refer to 2018, the year in which 21.6 Mtoe (Mega ton of oil equivalent) of energy from renewable sources were consumed, in terms of CFL (gross final consumption), equal to 17.8% of total consumption. Exceeding Germany and France in this clean consumption, Italy is third in Europe behind Spain and the UK.
The renewable energy source that has contributed most to reaching this production quota of electricity is the normalized hydraulic one with 42% of the total energy produced by RES; this is followed by solar photovoltaics with 20%. Bioenergy (17%), wind (16%) and geothermal (5%) also contribute.
According to statistic data, Italy is the leading country in the world for the consumption of electricity produced by photovoltaic panels and the second in Europe for the size of the photovoltaic sector, behind Germany.
Between 2009 and 2018, the number of systems installed has more than tenfolded, going from 76,593 units to 822,301, and the number will continue to grow also thanks to state tax breaks. The residential sector with approximately 670,124 systems installed overall in 2018, followed by the tertiary sector with approximately 90,000 systems, gives greater boost to the growth of photovoltaics. Installed capacity has therefore been increasing steadily since 2012, reaching a peak of 20.12 GW in 2018.
At the end of 2018 plants up to 20 kW made up 90% of those installed and 21% of the total power. A figure destined to grow starting this year, given the possibility of joining the Energy Community and collectively self-consuming energy.
In the same way and for the same reason, the choice of connection with the public network, which is the only way authorized by the Milleproroghe decree to exchange clean energy, is destined to be confirmed. The number of connected plants already represented almost all plants in Italy in 2018:
In 2018, the self-consumption of the energy produced by each family with its own solar photovoltaic system was 38%, while the remaining 61% of production was paid into the network using mechanisms such as on-site exchange. The percentage of self-consumed energy is destined to increase: first of all due to the increasing diffusion of storage systems that help individual self-consumption, and, starting this year, thanks to the Energy Communities, which support an electricity consumption model based on collective self-consumption.
The “large and centralized” energy model is in fact giving way to the “small and distributed” one: Italy is slowly embracing the concept of smart grid which reflects the intention of the RED II European Directive to push people to collective self-consumption both instantaneous and deferred, in a vision of community collaboration enabled by nodes as allowed by SNOCUs and by intelligent algorithms such as those of the Regalgrid® energy platform.
The distribution of the plants in Italy is very diversified. Although the southern regions are those that enjoy the best irradiation and therefore potentially more productive, the highest concentration of plants is in the north (about 55%). The remainder is divided between South (28%) and Center (17%). The two regions with the highest number of photovoltaic systems are the Lombardy region with 120,699 plants (15.2%) and the Veneto with 110,059 (13.9%).
Speaking instead of total installed power, Puglia contributes the most, with 13.2% followed by Lombardy, Emilia-Romagna, Veneto and Piedmont. Production reflects the distribution of power: Puglia is the first region for energy production with 3,438 GW (15.5% of the national total). Followed by Lombardy with 2,252 GWh (9.6%) and Emilia-Romagna with 2,187 GWh (9.5%).
Even more avant-garde for 2018 were those 41 municipalities fully supported by RES also for the needs of families. These two numbers will continue to increase, especially now with the possibility of creating energy communities that help each other in offsetting consumption and optimize resources.
We are only at the beginning of a revolution that is however running fast and to the great satisfaction of those who are supporting it, but above all of those who care about environmental sustainability and the quality of life in particular of future generations, such as Regalgrid. Since its establishment, our company has made a continuous commitment to researching and inventing a way to make renewable generation installations even more convenient, especially if small and distributed like residential ones, which are by far the most widespread. .
About Microgrids rome
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