Renewable energy professional with
a proven track record.

I am Ville Tiainen, an award-winning solar industry entrepreneur from Finland. I am looking for the next international step in my career.

LEADERSHIP / SALES / BUSINESS DEVELOPMENT

/ MY BUSINESSES /

/ RAULI

I built the RAULI brand from the ground up.

RAULI is a premium mounting system from Scandinavia, and today our products are known across Europe. Our distribution network covers Scandinavia, the Baltics, and Central Europe.

We have launched our own design app, which now has over a thousand users.
RAULI – KING OF THE NORTH.THE BIRTH OF RAULI.INTERSOLAR.

RAULI – KING OF THE NORTH.

The RAULI system was born out of necessity. Frustrated solar installers decided to take matters into their own hands and create a system that would speed up their work.
Read more

THE BIRTH OF RAULI.

The story of RAULI is like something out of a great adventure book, and looking back now, I have to admit it has had its share of drama.
Read more

INTERSOLAR.

Intersolar has never been just a trade show for me. It is a place where you can feel the new trends in the industry and experience the positive energy that flows through the solar business.
Read more

/ Aurinkotekniikka

In 2016, it all started with a clear vision. Develop a concept for selling and installing as many residential solar systems as possible in Finland.

Momentum built quickly, and the company grew to become thelargest player in the Finnish residential market, with over 5,000 installations. In addition to residential homes, we also executed C&I projects and utility-scale installations.

2021-2023 Aurinkotekniikka expandedinto consultancy, assisting with land acquisition for utility-scale solar parks.

THE ORIGIN AND FOUNDING IDEA.

For years, I had been interested in finding ways to make buildings more energy-efficient and in building a direct-to-consumer sales business.
Read more

THE CORONAVIRUS PANDEMIC.

I will never forget the beginning of 2020 and how the coronavirus pandemic broke my business into pieces. One small part at a time.
Read more

EMALDO TO FINLAND.

Intersolar has never been just a trade show for me. It is a place where you can feel the new trends in the industry and experience the positive energy that flows through the solar business.
Read more

SOLAR PANEL SCHOOL.

In the early days of Aurinkotekniikka, we in the industry were racing for market share. Everyone was fine-tuning their sales concepts and delivery processes.
Read more

RECYCLING SOLAR PANELS.

A few years ago, I had the pleasure of working with some highly talented solar energy specialists. They were consultants in our utility-scale solar park projects, helping secure land for large-scale solar installations.
Read more

INTERSOLAR

Intersolar has never been just a trade show for me. It is a place where you can feel the new trends in the industry and experience the positive energy that flows through the solar business.
Read more

/ AWARDS AND RECOGNITIONS /

2024

”ACHIEVER” ARTICLE IN FINNISH LEADING BUSINESS MAGAZINE

Finland's leading business magazine, "Kauppalehti," chose to feature me in their" Menestyjä" (Achiever) series, which showcases a successful entrepreneur from each region of Finland.

https://www.kauppalehti.fi/uutiset/omakotitalon-katolla-syntyi-idea-joka-valloittaa-nyt-vientimarkkinoita-siita-tulee-iso-volyymi/ea41c480-29c3-4d49-af84-7c31d9893eef

2024

HONORABLE MENTION IN THESUPERFINNS

RAULI received an honorable mention in the SUPERFINNS program, which was aimed at small and medium-sized enterprises onthe brink of an international breakthrough. The jury was impressed by ourpassionate work and eagerness to learn.

2023

Golden Merit Cross fromThe Finnish Entrepreneurs Associaton

To make planning solar panel installationseasier, we’ve developed the user-friendly RAULI APP application. Thisinnovation helped us win the Regional Export Award in 2023.

2023

REGIONAL EXPORT AWARD

To make planning solar panel installations easier, we’ve developed the user-friendly RAULI APP application. This innovation helped us win the Regional Export Award in 2023.

2023

6TH BEST PLACE TO WORKIN FINLAND.

I have allways aimed to create a great workplace for our employees. At Aurinkotekniikka our staff was highly motivated, and in 2023, the company was honored as the 6th Best Place to Work in Finland.

2004

A dedicated student,Finnish Defence Forces NCO Course

I want to highlight this recognition because it was given to me by my fellow coursemates. Being chosen as the "fairest student" of a leadership course by those you train alongside is a truly significant honor.

01
01

RAULI– KING OF THE NORTH

The RAULI system was born out of necessity. Frustrated solar installers decided to take matters into their own hands and create a system that would speed up their work. Initially, the products were only intended for internal use, but the results were so good that the market began demanding the product be made available to all industry players. Today RAULI is a well-known brand in the solar industry across Europe.

+1M monthly views on IG & TikTok
+1,000 users on the RAULI APP
+100 solar companies as customers
Distributors in over 10 countries

International growth required significant investments in digitalization, and we began developing our own design app in 2022. Two years later, a study commissioned from Norwegian Solarconsulting found that the RAULI APP was ahead of its competitors in both usability and the clarity of its reports. After this study, we took the app to the next level, adding AI and machine learning features for electrical component calculations and bringing project reporting to a completely new level.

The biggest difference between RAULI and its competitors is the product's innovative features. It is a 100% Nordic product. The high-strength steel used in the brackets comes from SSAB, and all manufacturing takes place in Orimattila, Finland. The carbon footprint of each product is carefully documented, and we can provide accurate CO2 emission data for each project. RAULI is built to withstand the harsh conditions of the North, where solar panels must handle snow loads of hundreds of kilos during the winter months. The product's supply chain is short and carefully documented, which allows us to offer a warranty of up to 30 years.

RAULI WALL, the most advanced facade mounting system on the market, has become a synonym for solar wall installations in multiple countries.The passion for what we do has been visible in everything we do, and RAULI has received recognition for its success. In 2023, we received a regional export award, and the following year, we received an honorable mention at the SUPERFINNS event, which is aimed at Finland's most promising start-ups on the verge of international growth.

VIDEOT:
Superfinns:

Innovative features:

RAULI WALL:

02

THE BIRTH OF RAULI

The story of RAULI is like something out of a great adventure book, and looking back now, I have to admit it has had its share of drama.

It all started in the early days of Aurinkotekniikka. We were up on a Finnish tile roof, trying to install solar panels. It was dark, cold, and wet. A mix of rain and snow was coming down, and the temperature was just above freezing. Everything was slippery, our hands were freezing, and the whole job was taking way too long.

The problem was simple. The mounting system we were using was terrible. It was clearly not designed for the rough, wet conditions we have up here in the North. Back then, we had to use brackets imported from Europe or Asia, and they just did not work for us.

My business partner at the time, Rauli, finally had enough. He looked at the mess we were dealing with on that freezing roof and said, "This cannot be this hard." We were losing a full workday on every tile roof because of these poorly designed brackets.

That weekend, Rauli disappeared into his workshop. He sketched out a new design for a better bracket, took it to a local machine shop, and had the first prototypes made. That was the birth of the first RAULI brackets, although they would not get their name until years later.

At first, we kept the brackets for ourselves. Rauli developed versions for metal and seam roofs, and soon we were doing all our installations with our own products. The brackets worked so well that word started to spread. Before long, our competitors started calling, asking if they could buy the brackets from us.

At first, we said no to everyone. These brackets were our thing, our competitive edge. But the calls kept coming. Then, the distributors started calling. They promised to sell our brackets to dozens, maybe even hundreds, of our competitors. In 2019, we finally decided to give it a shot. We named the brackets RAULI and started selling them to others.

The next year, we took an even bigger risk. We knew we had a great product, and even though the coronavirus pandemic made things tough, we decided to take RAULI international.

It was not easy. We made cold calls, sent messages on social media, and connected with potential partners on LinkedIn. We even wrote articles about RAULI brackets for Hungarian solar energy websites, in Hungarian, a language none of us spoke.

One thing led to another, and before long, we had a group of businesspeople from Hungary visiting the factory in Orimattila. They liked what they saw, and soon after, we signed a distribution deal covering seven countries. It kept us going.

We kept grinding, kept looking for new distributors, and slowly built our network across Europe. It was a crazy, exhausting time, but it paid off. Today, RAULI is a well-known name in the European solar market.

VIDEOT:
Story of RAULI:
Expanding:

02
03

INTERSOLAR

Intersolar has never been just a trade show for me. It is a place where you can feel the new trends in the industry and experience the positive energy that flows through the solar business. I first visited Intersolar in 2017, and this largest solar energy event in Europe holds many memories for me.

In 2021, we made the decision to take RAULI to the next year's Intersolar. It did not matter if we were ready for the "biggest stage" or if we had all the answers to the questions that international visitors would throw at us. We just knew we had to be there.

Together with Timo, we sketched out the booth design and started building the stand in a cramped warehouse. When the structures were ready, we packed everything into an old rental van and pointed the nose toward Germany. The journey from Riihimäki to Munich, through Sweden and Denmark, was nearly 1800 kilometers. Arriving at the massive exhibition complex and setting up our booth overnight was an unforgettable experience.

We had also invited our Central European distributors to join us, and together we welcomed thousands of visitors over the three-day event. Like everything I do, I believe that success at trade shows comes down to hard work. Talk to people, solve problems, build connections, and, most importantly, agree on the next steps. It was our first time on such a big stage, and we gave it everything we had. We let our passion show in everything we did, and it paid off. The show was a massive success. Many of our partnerships started at that booth. We made new friends and became part of the international community.

The next year, we pushed even harder. We booked a huge 8x8 meter booth and built the entire stand ourselves once again. This time, we arrived by plane, and the equipment was brought by a shipping company. I did not miss the nearly 4000 kilometer round trip from the year before. We invited and hosted our distributors from Finland, Norway, Hungary, and Sweden. I even hired a video team to capture the event and share the energy and atmosphere on social media.

The show was a success for the second year in a row. The difference this time was that we were no longer trying to become part of the international community – we were already a part of it. Countless people from the previous year came back to our booth to catch up and enjoy some Finnish licorice.

On the way home, I felt completely drained. Speaking a non-native language for days on end takes its toll. But looking back at the hard work that made these experiences possible, I can proudly say to myself, "WE DID IT!"

VIDEOT:
Intersolar 2022: tämän videon voisi upottaa suoraan sivulle / ladata piilotettuna YouTube Intersolar haastattelu:

03
04

THEORIGIN AND FOUNDING IDEA OF SUOMEN AURINKOTEKNIIKKA OY

For years, I had been interested in finding ways to make buildings more energy-efficient and in building a direct-to-consumer sales business. In 2016, the idea of solar panels hit me like a thousand volts. I saw a chance to create something new, and that is when I decided to start Suomen Aurinkotekniikka Oy.

From the very beginning, I had a clear vision. I wanted to build a company with a carefully designed concept. It had to cover everything – from sales and installation to brand building. I believed that if everything was planned down to the smallest detail, the business would be ready to scale when the time was right.

We got off to a fast start. We quickly began expanding our sales and installation teams, doubling our revenue year after year: 300k€ in 2016, 700k€ in 2017, 1.3M€ in 2018, and 2.3M€ in 2019. This was all done without outside investors or loans, just pure cash flow.

Our concept was strict. It defined not only how we sold and installed our systems, but also how we presented ourselves every day. I wanted us to stand out as honest, straightforward solar experts, so I even set a company dress code. Clean pants, a t-shirt, and a black hoodie. No business suits, just a casual look.

But the real key was our communication. I demanded that our salespeople have to be able to explain things clearly, without technical jargon. I wanted them to speak in a way that even an eight-year-old could understand. This approach set us apart from our competitors, and soon our reputation as honest and clear communicators spread quickly.

I personally spoke at more than 40 events in a single year, including trade shows, industry meetings, and university seminars. These talks were not just about selling panels. They were also about building relationships. In fact, one of the key people at Aurinkotekniikka first met me at one of these events, and not long after, he joined our team.

Even though our strategy was straightforward, in business you always need to be ready to react to market changes. In 2020, the global coronavirus pandemic hit the markets with unprecedented force, and it had a major impact on our business as well.

Fortunately, we were brave enough to "take the bull by the horns" and make the necessary changes. The adjustments we made to our business in 2020 later helped Aurinkotekniikka become one of the leading companies in the solar industry in Finland.

VIDEOT:
Yrityksen esittely:
Lammin Säästöpankki:

04
05

HOW THE CORONAVIRUS PANDEMIC CHANGED OUR DIRECTION AND LAID THE FOUNDATION FORFUTURE SUCCESS

I will never forget the beginning of 2020 and how the coronavirus pandemic broke my business into pieces. One small part at a time. But this crisis also created the foundation for something new – a story of growth and success.

In early 2020, we were holding a sales summit with Aurinkotekniikka sales team at a sports center in southern Finland. During the days, we competed in sales challenges, and in the evenings, we pushed each other in the sports facilities. One thing stood out – the place was almost empty. After talking with the staff, I learned that a group of several hundred Chinese athletes had canceled their visit because of a virus outbreak in China. At that moment, I didn’t think much more about it.

A few weeks later, we attended a two-day seminar hosted by a major Finnish cleantech distributor. On the first day, I noticed the empty seats in the auditorium. I knew that several business owners had skipped the event because the virus had already reached Finland. On the second day of the seminar, the situation escalated. Prime Minister Sanna Marin announced a ban on large public gatherings. I did not know it yet, but just a few weeks later, the army would isolate southern Finland from the rest of the country.

Like every other industry, the solar market was hit hard by the pandemic. People became cautious, and big investments like solar panels were suddenly a low priority. For a business with +20 employees, this was a serious problem. Orders stopped coming in, and our order books quickly emptied. We soon found ourselves in a situation where no money was coming in, but the costs remained the same.

With a heavy heart, I had to face the facts. There were no new sales, and the market did not show any signs of a quick recovery. I could not justify keeping my sales team. I made the difficult decision to let them go. Same people I had been competing against in the sports center just a few months earlier.

The changes we had to make shook the company to its core. Until that point, I had owned half of the company, and my business partner owned the other half. But with all the challenges of that spring, it became clear that we were heading in different directions. I believed I could turn the company around, so I decided to buy out my partner and take full ownership of Aurinkotekniikka. At the same time, I established a professional board for the company. It was one of the best decisions I have ever made.

Our installation team was still rock solid. I knew that if I could just keep them busy, the small streams of revenue from each job would be enough to keep the business running. But I did not believe that any single organization could give us enough work. We needed multiple partners. Many small streams to form a river. So, we worked like crazy, contacting our biggest competitors and convincing them to let us handle their installations. One by one, we managed to turn their heads. We got one partner, then another, and soon we had a long list of partners.

I also took a big risk. The year before, we had launched our RAULI mounting systems and started selling them to other companies. I made the choice to go all in on this opportunity. So far, we had only sold RAULI in Finland, where many companies were struggling. I knew that if we wanted RAULI to become a pillar of our business, we had to expand beyond our borders.

What happened next? Well, our revenue dropped by 28% in 2020, but we survived. The following year, our newly rebuilt business started to gain momentum. By then, we had a reputation as an honest and professional company, which opened new doors. In late 2021, we expanded into consulting, helping secure land for utility-scale solar parks.

In 2022, the energy crisis hit, and the solar market took off like a rocket. Thanks to the steps we took during the pandemic, we still had a large network of partners, and the small streams of work we had found in 2020 turned into fast-flowing rivers. We tripled our revenue in 2022 and grew another 12% the following year. By then, more than 50 people were wearing the Aurinkotekniikka uniform every day.

As the market grew across Europe, RAULI also took off internationally. In 2024, RAULI was separated from Aurinkotekniikka as its own company through a partial demerger.

VIDEOT:
Yrityksen esittely:

05
06

LAUNCHING EMALDO TO FINLAND

I have been waiting for the battery market to take off in Finland for many years. Now, at the year 2025, the boom is finally here.

From my very first days in the solar industry, people have asked me if it makes sense to buy a home battery along with solar panels. For a long time, my answer was no. I think that home batteries didn't make much (economic) sense. Personally, I believed (and still believe) that the real breakthrough will come with the rise of V2G (Vehicle-to-Grid) chargers, which will change the way we store and use energy.

In 2023, interesting news started coming from the battery market, and best of all, from the Nordics. Through RAULI, I was in regular contact with professionals from various countries, and I started hearing about a battery boom in Sweden. Thanks to the reserve market, homeowners were making real money with their batteries. It made battery investments much more profitable. The demand was so high that there was even a shortage of electricians in Sweden. I ended up sending a few of my Aurinkotekniikka guys over there to help with installations. That is a story of its own.

In the fall, I heard more good news, again from the Nordics. A Danish company, Emaldo, was bringing excellent battery products to the market, allowing homeowners to join the local reserve market. I flew to the Solar Energy Expo in Warsaw to learn more about their products. There, I met Tobias Jung, a talented guy I had previously met in Sweden. By then, he had taken over Emaldo’s European sales. After Warsaw, I made a trip to the Czech Republic to meet with ScandiConcept s.r.o. team and get their perspective on Emaldo.

At this stage, no one in Finland had started working with Emaldo. When I met Emaldo’s CEO Steffen Bjerregaard at Intersolar, it was the perfect moment. We quickly agreed to start a partnership between Aurinkotekniikka and Emaldo.

After that, things moved quickly. We launched marketing campaigns on multiple platforms simultaneously and managed to create a positive buzz around the new product in no time.

Finally, there was a solution for consumers that offered a good ROI. In addition to storing daytime energy and preparing for electricity price spikes, Emaldo battery owners in Finland can now participate in the reserve market managed by Fingrid, creating an annual financial benefit of over 2,000 euros.

Of course, Aurinkotekniikka is not the only company offering Emaldo to consumers, but thanks to our successful market entry and efficient sales process, we have already reached seven-figure sales.

VIDEOT:
Mikä on Emaldo:

06
07

SOLAR PANEL SCHOOL

In the early days of Aurinkotekniikka, we in the industry were racing for market share. Everyone was fine-tuning their sales concepts and delivery processes. Efficiency had to be pushed to the maximum to make the business profitable, even at low volumes (which was definitely the case in Finland in 2018).

However, many forgot one important part of the equation. What do customers want? They are not necessarily interested in the internal processes of companies, and they certainly do not care about average closing rates of salespeople.

I had long noticed that in customer meetings, we were always answering the same basic questions. Not just in sales situations, but also on social media (like, what is the payback time of a solar power system). I decided to focus on providing clear, consistent answers to these common questions, no matter which of our representatives the customer was talking to.

I wrote down all the most common questions and created clear, straightforward answers. I hired a video crew to come to our office, and we started filming a video series called "Solar Panel School." Remember, this was long before consultants started talking about personal branding or building your professional brand.

What was the result? Twenty-four short videos covering the basics of solar energy. We added the videos to our sales materials, shared YouTube links via WhatsApp to customers, posted them on social media, and used them to train new employees.

Earlier this year, I met a guy who has become a big player in the Finnish solar market. He told me that his first contact with the industry came through these videos. His first employer also trained their staff using my videos.

Not only did this help us provide better customer service and standardize our communication, but it also gave me massive personal visibility and helped build my own brand. I can't even imagine how much these videos have brought to Aurinkotekniikka over the years. Millions of euros and a huge boost in credibility. One thing is certain, that single day of filming has paid for itself many times over.

VIDEOT:
Messuesitys:
Aurinkopaneelikoulu:

07
08

RECYCLING SOLAR PANELS

A few years ago, I had the pleasure of working with some highly talented solar energy specialists. They were consultants in our utility-scale solar park projects, helping secure land for large-scale solar installations. One of these consultants was also studying for a degree in Sustainable Development at HAMK (Häme University of Applied Sciences) while working for us.

As her studies progressed, we started discussing possible topics for her Bachelor's Thesis. I suggested a subject that has fascinated me for years – the recycling of solar panels. It is a critical but often overlooked part of the solar energy lifecycle, and it immediately resonated with both of us. We quickly agreed that Aurinkotekniikka would commission this thesis from her.

Once the thesis was completed we filmed a video where we sat down with Taru, the author, to talk about the findings and challenges of solar panel recycling. Unfortunately, this video is only available in Finnish.

Best of all, this thesis has helped Taru become a leading expert in solar panel recycling, and it has been truly inspiring to follow her career path.

Aurinkopaneeleidenkierrätys:
Tarun opinnäytetyö:
Artikkeli:

08

/ TIMELINE /

2025

Lorem ipsum

I sold a significant share of Suomen Aurinkotekniikka Oy (FI27588916) and Aurinkotekniikka Myynti Oy (FI34280901) to the company's new CEO.

Co-founder of the advertising agency Larqa Oy (FI35110197)

2024

Co-founded

Co-founder of Aurinkotekniikka Myynti Oy (FI34280901), a company set to revolutionize the way solar panels are sold.

RAULI Solutions Oy (FI34205637) spun off as a separate company through a partial demerger.

Aurinkotekniikka launches Emaldo battery systems in Finland.

2023

Lorem ipsum

Aurinkotekniikka has installed over 5,000 solar power systems.

2022

Inter Solar & Rauli App

RAULI participates in Intersolar for the first time. International expansion accelerates. We launch our own design software.

2021

Lorem ipsum

RAULI signs its first international agreements

Aurinkotekniikka expands its expertise, hiring consultants for land acquisition in utility-scale solar park projects.

2020

Lorem ipsum

I take full control of the company's (Suomen Aurinkotekniikka Oy) ownership.

2019

Lorem ipsum

Launched the spinoff business "RAULI".

2016

Lorem ipsum

Founded Suomen Aurinkotekniikka Oy (FI27588916)

2015

Lorem ipsum

Graduated from AaltoEE (Aalto University Executive Education and Professional Development) - Leadership & Strategy Program for Automotive Professionals.

2014

Lorem ipsum

First exit with "Ylivoimala Oy" (FI23282741)

2013

Lorem ipsum

Gratuated from Hyria - Specialist Vocational Qualification in Leadership and Business Management.

2010

Lorem ipsum

Started as a full-time entrepreneurship

2006

Lorem ipsum

Served as a KFOR peacekeeper in Kosovo

2005

Lorem ipsum

Graduated as an IT Specialist (Datanomi)

2004

Lorem ipsum

One year of military service. Returned home as an NCO.

2003

Lorem ipsum

Founded my first company, "Sadankahdenkympin Sankarikerho"

1984

Born

/ WAD'DO oders say /

Icon Quote

”I have had the pleasure of working with Ville for several years now. I consider Ville as a leader in the solar and battery storage industry and have been very impressed with his industry knowledge and attention to detail. Ville has been a reliable partner and can highly recommend him as a business partner.”

Tobias Jung

Head of Sales and Business Development
Emaldo
Icon Quote

”I have had the pleasure of working with Ville for several years now. I consider Ville as a leader in the solar and battery storage industry and have been very impressed with his industry knowledge and attention to detail. Ville has been a reliable partner and can highly recommend him as a business partner.”

Tobias Jung

Head of Sales and Business Development
Emaldo
Icon Quote

”I have had the pleasure of working with Ville for several years now. I consider Ville as a leader in the solar and battery storage industry and have been very impressed with his industry knowledge and attention to detail. Ville has been a reliable partner and can highly recommend him as a business partner.”

Tobias Jung

Head of Sales and Business Development
Emaldo
ville tiainen signature