Renewable Energy Blog
Welcome to our renewable energy blog! Here you will find in-depth information and updates on the clean and sustainable energy sector. Our mission is to promote a greener future, where energy is produced in a sustainable and environmentally friendly way.
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HEIWIT at Key - The Energy Transition Expo 2026: Innovation in energy storage with sodium ion batteries
We are excited to announce that HEIWIT will participate in Key - The Energy Transition Expo, the European event dedicated to the energy transition, sustainable technologies and energy solutions of the future, taking place from 4 to 6 March 2026 at...
HEIWIT: CE-certified sodium-ion battery for Italy and Europe
HEIWIT: CE-certified sodium ion battery for Italy and Europe When it comes to storage systems for photovoltaics, one of the most important questions is: is this battery really certified and installable in Italy? The answer, for the HEIWIT kit...
Heiwit featured in Il Sole 24 Ore: Lombardy becomes Europe's sodium battery hub
Il Sole 24 Ore today devotes ample space to the development of sodium ion technology in Lombardy, recognising Heiwit as the leading player and pioneer in this strategic sector. In the article "Start-ups, research centres and university poles: the sodium ion hub is born...
New HEIWIT sodium ion storage system installed in Sambughè (TV)
The installation of HEIWIT sodium ion storage systems, an innovative technology that represents a concrete alternative to traditional lithium batteries for storing energy from renewable sources, continues. The latest intervention was...
Heiwit Installers Course - Residential Battery (Sodium-ion 48 V, 10 kWh)
Heiwit Installers Course - Residential Battery (Sodium-ion 48 V, 10 kWh) Heiwit opens registration for the technical course for installers dedicated to the 10 kWh sodium-ion residential battery. A practical and concrete appointment to learn installation,...
Heiwit battery in retrofit on existing photovoltaic systems: when the kit pays off and when to replace the inverter
Le batterie utilizzabili in retrofit sono quelle della gamma di batterie agli ioni di sodio.Batteria Heiwit in retrofit su impianti fotovoltaici esistenti: quando conviene il kit e quando sostituire l’inverter Integrare una batteria agli ioni di sodio Heiwit nel tuo...
Certified temperature range - Heiwit sodium ion batteries
Certified temperature range of Heiwit batteries Heiwit sodium-ion batteries have been tested and certified by TÜV SÜD. Below are the main values for the operating temperature as given in the official Heiwit temperature document.
Heiwit is 2 years old! Happy birthday!
Heiwit turns 2 years old Tomorrow designed today October 2023 - October 2025 In just twenty-four months Heiwit has gone from intuition to industrial reality: bringing safe, affordable and sustainable sodium ion storage systems to the European market. Today...
Heiwit brings sodium batteries to the Solar & Storage fair in Verona
Verona, 8-9 October 2025 - Two intense days full of meetings and enthusiasm. Heiwit was a great success at the Solar & Storage 2025 exhibition in Verona, presenting its sodium ion storage solutions in Hall 6, Stand S8....
Heiwit wins Best Innovation Award at Solar Solutions Torino
Heiwit wins the Best Innovation Award at Solar Solutions Torino 2 October 2025 - Heiwit S.p.A. Heiwit has received the Best Innovation Award at Solar Solutions Torino.An accolade that recognises our research and development work on sodium ion batteries,...
Heiwit will be present at Solar Solutions Torino 2025: come and discover our innovative solutions!
Heiwit at Solar Solutions Torino 2025 On 1-2 October we will be at Lingotto Fiere, Hall 1 (10:00-17:00).Come and discover our 10 kWh sodium ion batteries,HV hybrid inverters and photovoltaic solutions for home and SME. 1-2 October 2025 - 10:00-17:00...
Heiwit Token: 1 Year of Shared Energy with the Photovoltaic Cloud
Heiwit Token: First Anniversary of the Photovoltaic Cloud Today we celebrate the first anniversary of Heiwit Tokens, the service that allows individuals and businesses to easily, transparently and scalably participate in renewable energy production. In just one...
Innovation and Efficiency: Termoisover's photovoltaic-integrated project in Seregno
Innovation and Efficiency: Termoisover's photovoltaic-integrated project in Seregno Between April and September 2024, in the city of Seregno (MB), in Via Matteotti, our partners from Termoisover carried out an innovative intervention on a 17-unit apartment building in the...
Storage in Italy: boom in connections in the first half of 2025
Robust growth in the first six months of the year From January to June 2025, 1,140 MW of new storage systems were connected in Italy, an increase of 8.2 % compared to the 1,054 MW recorded in the same period in 2024.At the same time, usable capacity in...
Heiwit participates as a start-up at Solar & Storage Live Italia - Verona, 8-9 October 2025
Heiwit® proudly announces its participation in Solar & Storage Live Italia, the reference exhibition for the photovoltaic and energy storage sector, scheduled for 8 and 9 October 2025 at Veronafiere in Verona. The event, organised by Terrapinn...
Heiwit invited by EU to contribute to the future of sodium batteries
Sodium ion batteries are emerging as one of the most promising technologies in energy storage. Unlike traditional lithium batteries, they use abundant and readily available materials, reducing dependence on...
Heiwit achieves first certification of a grid-connected inverter for sodium-ion batteries: a breakthrough for energy storage
In the global energy storage landscape, obtaining the first official certification of a grid-connected inverter combined with sodium-ion batteries marks a milestone. The achievement of the Heiwit team represents not only a breakthrough...
Aging Test: how we test the reliability of our 6kW inverters before delivery
In the video below we show an important step in our production process: the aging test on the 6kW single-phase inverters, designed to work in conjunction with Heiwit 10kWh sodium-ion batteries. This is an essential test that...
Heiwit: sodium ion batteries set to revolutionise European storage
Heiwit has reached a major strategic milestone in the development of sodium ion batteries, an innovative technology that is set to revolutionise the energy storage market. Currently, Heiwit has a potential annual production capacity of...
Sodium Ion Battery: Complete Technical Guide, Technology Comparison and Advantages of Heiwit's Layered Oxide Cells
Le chimiche descritte qui sono quelle impiegate nella gamma di batterie agli ioni di sodio Heiwit.Introduzione Negli ultimi anni il mondo dell'accumulo energetico ha visto l’emergere di una tecnologia destinata a cambiare radicalmente gli equilibri: la batteria agli...
New Heiwit sodium-ion battery stars at Galatina Fair
From 27 to 30 June, we enthusiastically participated in the Galatina trade fair, thanks to the collaboration with Energy Building Project, our premium installer, which presented a preview of the new Heiwit sodium ion battery. An all-Italian energy...
Free course on Renewable Energy Communities (RECs) and Shared Self-Consumption Groups (GACs)
Heiwit is pleased to inform its readers of an interesting free training opportunity organised by Termoisover. The event, focused on Renewable Energy Communities (RECs) and Shared Self-Consumption Groups (GACs), is a valuable opportunity to learn about...
Heiwit installs the first sodium ion battery in Italy (and Europe)
In the world of renewable energy, there are moments that mark a before and an after. The installation of the first 10 kWh sodium ion battery in Italy and Europe is one of them. It is not only a milestone for Heiwit, but a strong signal of change for...
Heiwit sodium ion battery goes into operation in Caronno Pertusella
Heiwit proudly announces the commissioning of its first 10 kWh sodium-ion battery, installed at its experimental facility in Caronno Pertusella (VA). Connected to a proprietary 6 kW hybrid inverter, the battery is now...
The Silent Revolution: Heiwit's Sodium Ion Battery
At the heart of the energy transition, a new promise is emerging with strength and determination: the sodium ion battery. It is not just a technology: it is a symbol of progress, sustainability and energy independence. And in this scenario, Heiwit is asserting itself...
Understanding the True Cost of Harvested Energy: Calculating the LCOS of the HEIWIT Sodium Ion Battery
L'LCOS calcolato qui si riferisce ai sistemi della gamma di batterie agli ioni di sodio Heiwit.L'accumulo di energia, in particolare con le batterie, sta diventando un pilastro fondamentale per un futuro energetico più sostenibile e indipendente. Che si tratti di...
Heiwit awarded by Confindustria Varese as a start-up of excellence in the area
Varese, 3rd April 2025 - On the occasion of the General Assembly of Confindustria Varese, held at the Milan Malpensa Airport, Heiwit S.p.A. received an important award as a start-up that has particularly distinguished itself on the entrepreneurial scene of the...
Heiwit presents the new HEIWIT 1MWh sodium ion BESS: the ideal choice for industry
Heiwit introduces the new Sodium Ion BESS: the ideal choice for data centres We are excited to announce the launch of our new Sodium Ion BESS (Battery Energy Storage System) energy storage systems, designed to meet the needs of...
Heiwit will be on stage at Maga in Gallarate on 28 March to talk about artificial intelligence
Heiwit and Artificial Intelligence for Sodium Ion Batteries: A Revolution in Energy Management We are excited to announce that Heiwit will be present at the Gallarate Museum of Art (MAGA) on 28 March, where we will participate in a major event...
Green Energy Day: A Step Towards the Future with Heiwit and Renewable Energy
At a time when environmental sustainability is no longer an option but a necessity, events such as Green Energy Day emerge as crucial moments of awareness and innovation. This year, Green Energy Day offers us a unique opportunity to explore the...
Revolutionising the Energy Sector with Artificial Intelligence
In the fast-changing world of renewable energy, Heiwit stands out for its innovative use of artificial intelligence to optimise and personalise the energy services offered to customers. We find out how AI is transforming the way we manage...
Join the Renewable Energy Revolution: Esix launches its Crowdfunding Campaign!
The future of energy is here, and you can be part of it! Esix, an innovative start-up created by Heiwit S.p.A., has just launched its crowdfunding campaign on CrowdFundMe to finance the installation of new photovoltaic systems in grid parity, offering...
Big Debut at the Key Fair in Rimini: Presentation of the New 10kWh Sodium Ion Battery from Heiwit!
We are excited to announce that Heiwit will be present at the prestigious Key trade fair in Rimini on 5 March! This will be an unmissable opportunity to meet in person the installers who have expressed interest in becoming part of our network of...
Increasing Energy Costs by 108% in Less Than a Month: Find Out How Heiwit Tokens Can Help You
The sudden increase in the cost of energy, which rose by 108% from €92.95 to €192.84 in less than a month, is putting consumers and companies under pressure. In this critical context, Heiwit tokens offer an innovative solution to counteract the...
Energy bills 2025: expected 30% increase for energy, here's how to save
According to an analysis reported by TGCOM24, energy prices in Italy could rise significantly in 2025, with a direct impact on electricity and gas bills. There is talk of a 30% increase in the cost of electricity and natural gas,...
?? Renewable energy, sustainable laughter!
A photovoltaic panel says to a wind turbine blade: "Why are you so angry?" And the blade says: "I don't know... but my blades are spinning! Share if you too support a greener future! ?⚡ #EnergieRinnovabili #Sustainability #GreenEnergy #RisateVerdi
? Heiwit Special Offer: Green Photovoltaic Installation Turnkey!
Until March 2025, Heiwit offers a 6 kWp photovoltaic system with 10 kWh storage at a special price of €12,500 incl. VAT! This system is turnkey, complete with sodium-ion batteries and remote monitoring to keep an eye on the system's...
Heiwit October 2024: A Month of Success for Clean Energy and Environmental Savings ?
October 2024 proved to be an extraordinary month for Heiwit token energy production. Thanks to our ongoing commitment to promoting sustainable energy and the performance of cloud-based PV systems, we can celebrate an important milestone:...
Optimising production with a storage system: the concrete case of our plant
The graph of the daily production of one of our plants, dated 5 December 2024, shows an interesting case for analysing the opportunities and criticalities of photovoltaic energy management. 1. Initial phase: morning growth Time:...
Heiwit selected for Zero programme: a step towards the future of energy sustainability
Heiwit is proud to announce its participation in the prestigious Zero programme, the cleantech accelerator of the national CDP Venture Capital network. Selected among numerous innovative start-ups, Heiwit will have the opportunity to participate in an intensive course that...
Sodium Ion Batteries: The Sustainable Revolution for Future Energy
In the world of energy transition, sodium ion batteries are emerging as an innovative and sustainable solution for energy storage. Due to their high material availability and reduced environmental impact compared to...
Heiwit Exceeds 10 MWh of Renewable Energy in Less than 3 Months: An Achievement in Sustainability and Innovation
hhWe are excited to announce an extraordinary milestone: in less than three months since the project launch, Heiwit has surpassed 10 MWh of installed and operational renewable energy, contributing significantly to a greener and more sustainable future. Thanks to the...
Heiwit announces start of production of first batch of 10 kWh sodium-ion batteries
Heiwit is excited to announce the start of production of the first batch of 10 kWh sodium ion batteries, an innovative and sustainable energy storage solution. This new generation of batteries is characterised by its...
Remote Photovoltaics: Sustainable Energy Without Installation with the Heiwit Token
Introduction Remote photovoltaics allows people to produce and benefit from solar energy without the need to install physical panels on their roof or land. With this model, anyone can contribute to the energy transition simply by investing in...
Virtual Photovoltaics and Heiwit Tokens: Innovation and Advantages of the New Frontier of Renewable Energy
Introduction Virtual photovoltaics is revolutionising the way in which users can access and benefit from renewable energy, overcoming the barriers of physical installation and allowing anyone to participate in the energy transition. Among the...
Heiwit Sodium Ion Cells: The New Frontier of Energy Storage for Photovoltaic Systems
Sodium-ion batteries represent an innovative and sustainable solution in the field of energy storage, offering an alternative to conventional lithium-ion batteries. Thanks to the use of abundant materials such as sodium and their...
Salt batteries for photovoltaic systems: the Heiwit solution for energy storage without compromise
Introduction Salt batteries are emerging as one of the best solutions for energy storage in photovoltaic systems. But not all salt batteries are the same: Heiwit's technology represents a breakthrough compared to older...
Choose Heiwit's new 10 kWh sodium ion batteries for your photovoltaic system: efficiency, sustainability and zero worries
Introduction Do you already have a photovoltaic system and are looking for a way to make the most of all the energy you produce? Heiwit's new 10 kWh sodium-ion batteries are the ideal solution to maximise self-consumption and further reduce costs...
Heiwit Launches 10 kWh Sodium Ion Batteries: Reservations Open!
We are excited to announce big news that marks a real game-changer in the energy sector: bookings for Heiwit 10 kWh sodium-ion batteries are officially open! This launch represents an important step...
Bando Disposal Eternit, Bando Disposal Asbestos and Asbestos Remediation: How Heiwit Can Help You Save on Roof Remediation Costs
Introduction The problem of asbestos and asbestos disposal is still a reality in many Italian companies, particularly those with buildings constructed decades ago. The presence of these substances, which are dangerous to health and the environment, requires an intervention...
Heiwit Token Production Results - September 2024: A Month of Challenges and Successes
We are pleased to share the final results of our token production for the month of September 2024. Each Heiwit token produced 8.89 kWh of clean energy, contributing to the energy transition and the common goal of decarbonisation. The takings...
Contribution up to 65% for Eternit Removal for Energy Companies
Heiwit launches a new initiative designed for energy-intensive companies wishing to improve the security and energy efficiency of their facilities. Thanks to our promotion, we offer a contribution of up to 65% towards the cost of removing and replacing...
Eternit Removal: How Heiwit Can Help You Replace Eternit with a Photovoltaic Plant
The removal of asbestos is a fundamental step for the safety of buildings and the health of those who live and work in them. In recent years, legislation in Italy has become more and more stringent, requiring the replacement of asbestos cement, especially when...
Industrial Photovoltaic Plant: Advantages and Opportunities for Companies
Industrial Photovoltaic System: Advantages and Opportunities for Companies In recent years, the adoption of an industrial photovoltaic system has become a strategic choice for many companies, both to reduce energy costs and to improve the sustainability of their...
How Cloud PV Can Improve the ESG Score of Large Enterprises and SMEs
In today's business environment, companies are called upon to respond to challenges that go far beyond mere profit. The focus on sustainability, social impact and good governance has led to the emergence and growing importance of indicators...
How Building Managers Can Take Advantage of PNRR Incentives for Collective Ownership (AUC) by Installing a Photovoltaic System
The energy transition is no longer just an option, but a necessity. Condominium administrators are called upon to manage the complex aspects of energy and financial management of condominium buildings, and it is in this context that the NRP...
Alternatives to photovoltaics: the Photovoltaic Cloud
In recent years, photovoltaics have become one of the most popular methods of producing renewable energy. However, it is not always possible to install a photovoltaic system on one's own roof or property. In these cases, it is useful to explore the...
Special thanks to our 1000 members: the support that inspires us!
With great enthusiasm and gratitude, we want to celebrate an important milestone for Heiwit: we have reached 1000 subscribers on our YouTube channel! This achievement is the result of your continued support and growing interest in energy topics...
Solar energy surpasses oil: Heiwit's role in the green revolution
According to a recent Bloomberg article, solar energy is reaching production levels exceeding those of the big oil companies. This change marks an epochal shift in the energy sector, with renewables emerging as the...
A gift for the future: Heiwit promotes sustainability with a social initiative
At a time when climate change is one of the biggest challenges we face, Heiwit is committed not only to offering concrete solutions for a more sustainable future, but also to educating and engaging the younger generation. Through innovative initiatives...
Heiwit S.p.A. - Video Company Profile October 2023
Heiwit - Join the energy revolution
Energy token HEIWIT PMIA01 - 60 kWp photovoltaic system in Baranzate (MI)
Un impianto da 60 kWp come quello di Baranzate produce soprattutto nelle ore centrali della giornata: per trattenere quell’energia e usarla la sera servono sistemi di accumulo agli ioni di sodio.
Heiwit S.p.A. - Company profile - September 2024
Il company profile racconta l’azienda; la parte industriale si vede meglio nella gamma di accumuli agli ioni di sodio, e per una valutazione di fornitura c’è la richiesta informazioni.
HEIWIT Photovoltaic Cloud
With Heiwit, participating in the solar energy revolution is simple and affordable. Thanks to our innovative photovoltaic cloud system, you can buy energy tokens and benefit from renewable energy production for the next 30 years, without having to...
Photovoltaic Cloud: Sustainable Energy with Heiwit ⚡?
Se stai confrontando il cloud con un impianto tutto tuo, il nodo economico è l’accumulo: la pagina dedicata alle batterie al sale spiega come funziona questa chimica e cosa incide davvero sulla spesa.
Heiwit photovoltaic cloud: renewable energy without installation and savings for 30 years!
Il cloud evita l’installazione, ma chi un tetto ce l’ha ottiene di più abbinando all’impianto un accumulo agli ioni di sodio: i tecnici abilitati sono nell’elenco installatori partner.
Roof rental for photovoltaics: prices
Photovoltaic roof rental: a new opportunity with Heiwit In recent years, renewable energy has gained increasing attention as a solution to reduce environmental impact and lower electricity costs. Among these solutions, photovoltaic...
How the solar energy production of our plant in Baranzate is going
The ability to harness the sun, an inexhaustible natural resource, to produce clean energy is an effective response to environmental challenges and a concrete opportunity to save and invest intelligently. With the technological advances of the...
Renovation Bonus 2025: deduction from 50% to 36%
The Renovation Bonus 2024 is currently an important tax relief for those wishing to carry out extraordinary maintenance, restoration and renovation work, as well as building renovation on common parts of residential buildings....
Photovoltaics and Regulations: Laws You Might Not Know
More and more people and businesses are deciding to equip themselves with rooftop photovoltaic systems in order to save on their utility bills and participate in decarbonisation. There is a lot of enthusiasm for this green technology, but the enthusiasm is sometimes dampened when it comes to...
5 reasons why every company should invest in solar energy
Solar energy is now a long-term strategy that promises tangible benefits for companies around the world. With rising environmental concerns, fluctuating energy prices and increasing pressure to adopt business practices...
Positive outlook for Heiwit's sodium ion battery project
In the renewable energy landscape, technological innovation plays a crucial role in ensuring increasingly efficient and sustainable solutions. In this context, Heiwit is positioned as a major player with the development of its ion batteries...
How to save on energy bills and produce clean energy: the Photovoltaic Cloud
he last few years, the transition to renewable energy sources has seen numerous innovations and developments. Prominent among these is a new proposal on the market that could revolutionise the energy sector: the Photovoltaic Cloud. This concept, developed to...
Heiwit token vs photovoltaic system: which is more convenient?
The installation of a photovoltaic system on the roof of a house is one of the most traditional solutions for the production of renewable energy. Photovoltaic systems make it possible to convert solar energy into electricity, reducing dependence on...
5 alternatives to solar panels (+1 bonus) to save on bills and the environment
The cost of living is rising sharply. According to some estimates, the average increase in the electricity bill for a typical family is around EUR 650 compared to 2020. The maximum costs on bills have decreased compared to 2020, but still remain higher:...
How to choose the right investment in renewable energy: a short guide
Investing in renewable energy has become one of the most talked about topics in recent years, not only for its environmental importance but also for its economic opportunities. This sector represents a concrete response to the climate crisis and offers advantages...
Energy communities, blockchain and renewable energy
In recent years, the focus on renewable energy and environmental sustainability has grown exponentially. One of the most innovative concepts in this area is that of energy communities, i.e. groups of citizens working together to produce,...
2024-2025: State incentives for photovoltaics and renewables
Installing a photovoltaic system has become an increasingly convenient investment thanks to the numerous government subsidies made available to encourage the production of clean energy. We have already mentioned them in several of our articles, but now it is the...
HEIWIT energy token dashboard: how monitoring works
The renewables sector is becoming increasingly digitised and we want to keep up. We are therefore delighted to announce the official launch of the HEIWIT monitoring dashboard, a revolutionary tool that offers our Energy Token holders a...
Tokenisation of energy: the new future?
The growing demand for clean energy and the urgency to reduce carbon emissions have led to the exploration of new ways of financing and managing energy resources. Energy tokenization stands as an innovative solution that...
HEIWIT vs cryptocurrency: the key differences
There is a lot of talk nowadays about cryptocurrencies, and when we designed our Heiwit energy tokens, we often had people call them cryptocurrencies. However, they are not and in this article we want to explain why. You will discover that tokens...
Europe 2030: Towards 42.5% of Renewables and the Role of HEIWIT Tokens
The year 2030 is the most important year for the European Union in its fight against climate change and its transition to a more sustainable economy. The European Green Deal and the Environmental Action Plan (EAP) set ambitious targets, including...
Heiwit reaches new milestone: first Megawatt-hour of renewable energy produced
We are excited to announce that Heiwit has reached an important milestone in its mission to promote sustainable energy. We have just produced our first megawatt-hour (MWh) of renewable energy, a decisive step towards a greener future and...
5 FALSE MYTHS ABOUT PHOTOVOLTAICS
“Photovoltaic installations take up too much space and steal land from agriculture ”FALSEVEROPO 43 Gigawatts (GW) of new photovoltaic installations are needed to meet greenhouse gas emission reduction targets by 2030. The area a...
IRPEF deduction of 50%. Invest in Heiwit S.p.A. with CrowFundMe
In today's economic environment, innovation is the key to sustainable growth. Innovative start-ups such as Heiwit S.p.A. represent the future of numerous industries, from technology to sustainability, and offer a great opportunity for...
New 280Ah salt battery cells available
In cooperation with our technical partner, Heiwit has new sodium-ion cells with the highest density in the industry - 28Ah - already available for marketing. These make our batteries extremely efficient, allowing them to be recharged...
How the Sale of Heiwit Can Help Italy and Europe Achieve the Sustainability Targets of the 2030 Agenda
The UN 2030 Agenda for Sustainable Development is a global commitment to address global challenges related to sustainability, poverty and inequality. Italy and Europe have embraced this commitment, recognising the need for action...
Heiwit Announces New Partnership with CrowdFundMe for Financing Innovative Photovoltaic Systems for Energy-Efficient Companies
Varese, 8 August 2024 - Heiwit is excited to announce the signing of a strategic partnership with CrowdFundMe, one of Italy's leading crowdfunding platforms. This collaboration aims to finance and realise state-of-the-art photovoltaic systems...
Diversify your portfolio: add a green and innovative asset to your investment mix
Interest in sustainable investing is growing rapidly. According to a recent "Sustainable Signals" report by the Morgan Stanley Institute for Sustainable Investing and Morgan Stanley Wealth Management, more than 77% of individual investors at...
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