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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Two new installations of Heiwit storage systems carried out by BMAX Service of Beatrice Piepoli
Our Installations Gallery is enriched with two new Heiwit storage systems manufactured in Puglia by our installer.
New installation in the province of Bologna
The Installation Amongst the installations made with Heiwit solutions, we are presenting an installation carried out at a new home in the province of Bologna by our Premium Partner S.O.S. Luce by Candini Renato. In this project, a battery was installed...
Fully electric house in Carcare: photovoltaic, Heiwit storage and heat pump for greater energy independence
Removing gas and making one's home fully electric: this is the objective of the project carried out in Carcare (SV) by our premium partner Ferrari Security Innovation & Service. To meet the client's needs, a...
BESS distributed HEIWIT: sunlight from the day can become useful energy in the evening
BESS deployed: daytime sun can become useful energy in the evening For years, we have imagined photovoltaics simply: the sun shines, the panels produce energy, the home or business uses it and any surplus is fed into the grid. It has been a...
Record Heiwit: 3 MWh of solar energy produced in a single day
Today, Heiwit plants have reached a new milestone: 3 MWh of clean energy produced in a single day. An important result that concretely demonstrates the value of our model: transforming available surfaces, photovoltaic systems and...
Heiwit in Brussels, at the table on the future of the European battery
On 11 June 2026, our founder and CEO Alessandro Gallani took part in the European Economic and Social Committee's debate on the future of the European battery industry. It was a day that discussed competitiveness, energy, and people – and the role that ’made in Europe“ sodium can play in the continent's industrial sovereignty.
Revamping of photovoltaic system in Palermo: I.M.E.R.T. S.N.C. installs a Heiwit system with 20 kWh of storage
In Palermo, within a semi-detached villa, I.M.E.R.T. S.N.C. has recently completed an upgrade and replacement of an existing photovoltaic system, opting for a Heiwit solution to improve the system's performance and increase...
Selecta S.r.l. has chosen to exhibit Heiwit batteries at its stand in the Palladio Shopping Centre in Vicenza.
The growing focus on energy efficiency and sustainable solutions is leading more and more companies to invest in innovative technologies to present directly to the public. In this context, Selecta S.r.l. has chosen to exhibit its storage batteries...
AI Care smart estimator: from bill to photovoltaic project in minutes
The AI Care Estimator starts with the bill, analyses real consumption, roof layout, and economic simulation to build faster and more coherent photovoltaic proposals.
Energy Manager AI: sell energy when it's worth more and use the battery better
Energy Manager AI analyses production, consumption, weather, and hourly energy prices to decide when to store, self-consume, or feed into the grid.
AI Care: intelligent monitoring that transforms every photovoltaic system into a controlled platform
Real-time monitoring, comparison between expected and actual production, consumption analysis, and fleet control: AI Care brings photovoltaics into a new phase of intelligent management.
Where does the name HEIWIT come from? Nobody really knows. And that's precisely the beauty of it.
Where does the name HEIWIT come from? Nobody really knows. And that's precisely the beauty of it. There are company names that are born after months of meetings, consultants, focus groups, whiteboards full of arrows, domain names checked at three in the morning, and endless discussions...
Heiwit system installed by Eliotech in Roccaforzata (TA)
New installation completed in Roccaforzata, in the province of Taranto, where Eliotech has installed a photovoltaic system integrated with a 10 kWh Heiwit sodium-ion storage system. The project includes: 18 x 450 Wp photovoltaic modules on 2...
The Heiwit plant in Almè: a home increasingly oriented towards the electrification of consumption
Heiwit storage solutions continue to be at the forefront of residential projects focused on energy efficiency and the progressive electrification of homes. This is the case with the installation carried out in Almè, in the province of Bergamo, by Arizzi...
Heiwit residential installations: Gruppo Green Italia's experience
Heiwit's storage solutions continue to find application in increasingly diverse residential contexts, thanks to their ability to combine safety, ease of installation, and reliable performance. In recent months, Upsell's Green Italia Group...
High self-consumption with sodium-ion batteries: data from an Italian plant park
Observational study · Residential storage High self-consumption with sodium-ion batteries: data from an Italian plant portfolio Analysis of energy autonomy distribution on a portfolio of residential photovoltaic systems equipped with storage systems...
Heiwit Installation at the Natural Power Showroom in Cagliari
Heiwit storage solutions continue to spread, even in demonstration contexts, designed to showcase technologies dedicated to energy independence up close. One example is the installation carried out by Natural Power Soc. Coop. at its own headquarters...
New Heiwit installations in Tuscany: efficiency, simplicity, and satisfied customers
When reliable technology and qualified installers meet, the result can only be positive. In recent months, Ricarica Energy To Move, a company specialising in energy efficiency, photovoltaic systems, and solutions for electric mobility, has...
Artificial Intelligence and Photovoltaics: how AI CARE optimises energy self-consumption
Artificial Intelligence and Photovoltaics: how AI CARE optimises energy self-consumption In recent years, the integration of photovoltaic systems and storage systems has transformed how we produce and use energy. However, the real leap...
From bill to profit: +€81 in 30 days with HEIWIT ⚡
From bill to profit: +€81 in 30 days with HEIWIT ⚡ Yes, you read that right. In the last 31 days, one of our systems not only didn't pay for electricity... but actually made €81.66. ? Real numbers (not simulations) Total consumption: 348.4 kWh Production...
Sodium-ion self-discharge: only 6% lost over 539 days
Sodium-ion self-discharge: only 6% lost over 539 days When discussing storage batteries, the focus is often solely on capacity, power and price. But there is one parameter that says a great deal about a battery’s true quality: self-discharge. And it is precisely here...
HEIWIT reaches 60 MWh of production in the first months of 2026
HEIWIT reaches 60 MWh of production in the early months of 2026. In the early months of 2026, the HEIWIT systems installed throughout Italy, from Trentino to Sicily, have already reached the milestone of 60 MWh of production. It's a result that concretely tells the...
AI storage: how artificial intelligence accumulation can increase GSE revenue
AI storage: how artificial intelligence accumulation can increase GSE revenue Today, the issue is not just how much energy a photovoltaic plant produces, but also when it is convenient to consume it, store it, or sell it to the grid. And this is precisely where...
Do Heiwit sodium-ion batteries cost more than lithium-ion batteries?
A 1L drink at 3 euros or a 0.5L one at 2 euros? The answer seems obvious. And yet, it’s precisely the mistake many people make when commenting on the price of a battery. They only look at the initial price, without asking themselves how much energy that battery...
HEIWIT is participating in Green Energy Day 2026 with a photovoltaic system equipped with a sodium-ion battery storage system.
Among the awards presented during KEY Energy 2026, we presented the Innovation Ambassador Award 2026 to Ricarica Energy to Move, a partner who has distinguished themselves for their strong promotion of Heiwit technology and, more generally, for a vision of energy in which production from renewable sources, storage, and electric mobility interact in an increasingly integrated way.
How much raw material is really needed for sodium-ion batteries? The scientific calculation, explained simply
How much raw material is really needed for sodium-ion batteries? The scientific calculation, explained simply Spoiler: no, the sea wouldn't be desalinated if all the batteries the world needs were sodium-ion. Let's see why. When talking about batteries...
Innovation Ambassador Award 2026
Among the awards presented during KEY Energy 2026, we presented the Innovation Ambassador Award 2026 to Ricarica Energy to Move, a partner who has distinguished themselves for their strong promotion of Heiwit technology and, more generally, for a vision of energy in which production from renewable sources, storage, and electric mobility interact in an increasingly integrated way.
Technology Voice Award 2026
During KEY Energy 2026, we presented the Technology Voice Award 2026 to CF Elettrika and Matozzoni, two partners who stood out for their ability to effectively communicate Heiwit's solutions and, above all, to explain why discussing storage today also means discussing technological evolution, industrial sustainability, and new supply chain choices.
Best Installer Award 2026
On the occasion of KEY Energy 2026, we have chosen to reward the partners who, in the field, are transforming interest in energy storage into real, installed, and operational systems. The Best Installer Award 2026 was presented to Puntoambiente, a company that distinguished itself through the largest number of Heiwit systems installed and for the consistency with which it has brought our technology to residential and professional clients.
Over 1 MWh of clean energy in 2 days: what does it really mean for HEIWIT plants
Over the last 2 days, the monitored HEIWIT plants have collectively produced over 1 MWh of clean energy. Expressed in a more immediate form, this means over 1,000 kWh generated from real plants in a very short period. From a technical standpoint,...
How long do HEIWIT batteries last? Over 2000 real cycles on sodium-ion batteries
One of the most frequent questions when discussing energy storage is always the same: how long does a battery really last? In the case of HEIWIT sodium-ion batteries, today we can answer not only with laboratory data, but also with a basis of...
The sodium chosen by those who install energy every day
CF ELETTRIKA, active in the photovoltaic sector since 2010, discovered HEIWIT through Instagram. The sodium-ion technology immediately sparked interest, leading to further investigation through a training course and direct discussion with the manager...
Photovoltaic system with sodium-ion storage in Albiate
In Albiate (MB), we have completed a new installation in a stately villa, designed to ensure energy independence, reliability, and continuity of service. The project was carried out by Puntoambiente S.r.l., which oversaw the integration of the entire...
Sodium ion batteries: concrete safety, not just promises
With the spread of electric vehicles and Battery Energy Storage Systems (BESS) in increasingly “safety-critical” contexts (enclosed environments, buildings, infrastructure, large-scale logistics), the question is no longer just how much energy we can store, but how it behaves...
HEIWIT sodium ion storage for the operational headquarters of Urano Solar Tec s.r.l.
At the operational headquarters of Urano Solar Tec s.r.l., a system with a HEIWIT sodium ion storage system has been realised, developed as a demonstration project to optimise self-consumption and reduce the environmental impact of the company's activities. A choice...
Batteries for photovoltaic systems: are they really worth it? (simple calculation in 2 minutes)
Batteries for photovoltaic systems: are they really worth it? (simple calculation in 2 minutes) “They cost twice as much... the normal ones are already not cheap, let alone these.” This is a comment one often reads. And it is understandable: a battery is a major expense, and if you look...
Sodium safer than lithium? What the research says (and why “safety” is not one)
Sodium safer than lithium? What the research says (and why “safety” is not one) When it comes to photovoltaic storage, the question always comes up: “But is it safe?”. It is a more than legitimate question, because a battery is not a simple “tank” of...
HEIWIT sodium ion batteries: field results to date (06/02/2026)
HEIWIT sodium-ion batteries: field results to date (06/02/2026) 6 February 2026 marks a concrete milestone in the journey of HEIWIT sodium-ion batteries: the first systems have reached 1,000 life cycles while maintaining performance...
HEIWIT sodium ion storage for three residential installations in Veneto
Three residential projects in Veneto with HEIWIT sodium ion storage systems, carried out by ARCA 360 SRL between the provinces of Vicenza and Padua. Interventions on private homes between Vicenza and Padua The installations were realised in...
Installation of a Heiwit storage system between Lecce and Arnesano by EBP
The intervention was carried out in an area between Lecce and Arnesano, at a civil residential home. The system includes: 8 kW photovoltaic system 10 kWh Heiwit storage system The integration of the storage system improves the...
Installation of Heiwit storage systems in Mozzate (CO) by Matozzoni
The intervention was carried out in Mozzate (CO), at two flats located in the same residential building. Both installations involved the integration of a Heiwit storage system within existing installations, with the aim of...
Installation of a Heiwit storage system in Acireale by Eco Energis
The project was carried out in Acireale, in the province of Catania, at a house already equipped with a 6 kW photovoltaic system. The customer, with the aim of increasing energy autonomy and optimising self-consumption, chose to integrate its own photovoltaic...
Sodium batteries: why stratified oxides are changing domestic storage
In the world of sodium batteries, the word “Na-ion” is not enough: the chemistry of the cathode changes power, lifetime and cold performance. Layered oxides emerge as a premium option for domestic storage, especially when high cycles and peak response count.
Why does the charge percentage (SoC) sometimes “jump”? A simple (but technical) guide to understand it
Why does the percentage of charge (SoC) sometimes “jump”? (It also happens to lithium, especially LFP) If you have a domestic battery connected to photovoltaics, you may see behaviour that is surprising: the percentage of charge (SoC, State of Charge) does not go up or...
HEIWIT sodium ion storage for the extension of a photovoltaic plant in the province of Ferrara
A revamping intervention on an existing system The installation was carried out in the province of Ferrara on an existing photovoltaic system, originally built under the Second Energy Account and without a storage system. The intervention involved...
Photovoltaic storage: why sodium batteries change the rules (and what the supply chain has to do with it)
Choosing a battery for photovoltaics is not just about assessing capacity and cycles: it is about deciding which supply chains to support and how much geopolitical risk to take with you. Sodium batteries, alternatives to traditional chemistry, rely on more abundant materials and a potentially more manageable impact on water, land and end-of-life.
RED III Directive: what changes for renewable energy in Europe and Italy
The Renewable Energy Directive III (RED III) marks a key step in the European renewable energy strategy. With more ambitious targets and a strongly efficiency-oriented approach to the energy system, the directive strengthens the role...
Heiwit starts project for new factory in Italy: up to 1 GWh per year of sodium ion batteries
Industrial Production - Sodium-ion Batteries Heiwit starts the project for a new sodium-ion battery factory in Italy: up to 1 GWh capacity From 7 January, a strategic industrial project officially starts: a new sodium-ion battery factory in...
HEIWIT sodium ion storage for a residential project in Fiumicino, Italy
Residential projects that have adopted HEIWIT sodium ion storage solutions include an installation in Fiumicino, in the province of Rome, within a recently renovated single-storey house. The intervention involved a...
Why Heiwit sodium ion batteries only work best with our inverters
Why Heiwit sodium-ion batteries only work best with our inverters When it comes to residential storage, it is often taken for granted that “one battery is as good as another” and that it is enough to choose a “compatible” inverter to make everything work....
HEIWIT sodium ion storage for the First Albergo Diffuso in Veneto
HEIWIT continues its path in the development of sodium ion storage systems, supporting companies that choose energy solutions oriented towards innovation and a more conscious use of energy. It is in this context that one of the...
Sodium Ion Batteries: The New Frontier of Energy Storage
Sodium-ion batteries are redefining the energy storage landscape with their low cost and sustainable materials, conquering Europe.
How to reconnect inverter Wi-Fi after router change or password change (video guide)
How to reconnect the inverter's Wi-Fi after router change or password change (video guide) Have you changed your home router, updated your Wi-Fi password or changed the network name (SSID) and now the inverter is offline on the app? Don't worry:...
HEIWIT battery-compatible inverters: how to choose the right configuration
The battery is only half of the system: the other half is the inverter. Good compatibility between battery and inverter is essential for proper charge/discharge management, protection, performance and reliability over time. If you want a general overview first...
HEIWIT sodium ion battery: features, models and applications
HEIWIT sodium-ion battery: features, models and applications The HEIWIT sodium-ion battery is designed for stationary storage in combination with photovoltaic and domestic systems. On this page you will find a clear overview of the...
How a sodium ion battery works: chemistry, cells and BMS (explained well)
How a sodium-ion battery works: chemistry, cells and BMS (explained well) In this in-depth guide we explain how a sodium-ion battery works from a technical point of view, but in clear language. If you are looking for a more introductory guide you can...
Sodium ion batteries: what they are, advantages and comparison with lithium batteries
Sodium-ion batteries (also known as sodium-ion) are storage systems that use sodium as the main element to transport ions between anode and cathode during charging and discharging. In practice, they do the same “work” as a sodium-ion battery....
Heiwit Facebook page name change
Dear users, this is to inform you that the name of our Facebook page has changed from "Heiwit - Social Cloud Energy" to "Heiwit - Sodium Ion Battery". The change allows us to better reflect our core business, which is no longer related to the sale of...
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
Heiwit battery retrofit on existing photovoltaic systems: when it pays to kit and when to replace the inverter Integrating a Heiwit sodium ion battery into your existing photovoltaic system is possible and often cost-effective. There are two ways:...
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
Introduction In recent years, the world of energy storage has seen the emergence of a technology destined to radically change the balance: the Sodium-Ion Battery (SIB). Although this technology has been known for decades at...
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
Energy storage, particularly with batteries, is becoming a key pillar for a more sustainable and independent energy future. Whether it is storing the energy produced by solar panels or taking advantage of hourly electricity rates,...
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...
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