The webinar was organised by EQ Magazine on 22nd June 2022, powered by Deye Inverters. The following webinar was about the hybrid technology for the future solar rooftop, which was moderated by Mr. Puspak Chamariya, Associate – L & L Partners (Moderator), where he very specifically discussed every challenge, latest technology, innovations, and the upcoming future of the Hybrid rooftop solar.
Mr. Bharat Singh, Head – Sales & Marketing (India) – Ningbo Deye Inverter Technology Co., Ltd Delivered a brief about the Ningbo Deye group, which was founded in the year 2000 by Mr.Zhang Hejun, in 2007 Ningbo Deye inverter technology Ltd. started the manufacturing of the solar on-grid and micro inverters, and later in the year 2017 manufacturing Hybrid Inverters also started. When it comes to the technology-oriented company, Ningbo Deye is a high-tech enterprise, where T type 3 level topology is being adopted, which actually reduces the voltage stress on the DC buzz and reduces the losses also, hence it increases the efficiency of the inverter and it provides the cutting edge technology. There are many subsidiary companies under Ningbo Deye Technology co. Ltd such as Ningbo Deye electrical appliances and Ningbo Deye ESS Technology Co. Ltd and many more. The company has 5 production lines, under inverter, manufacturing of on-grid inverter happens. When it comes to the lithium battery energy storage system, the company shall start the manufacturing of the battery system 48 volts to start with up to 500-volt battery systems by mid of 2023.
Mr. Sunil Sharma, DGM Sustainability and Cleantech – BSES Yamuna Power Limited Briefly shared the role of BYP and their activity at solar rooftop space, which is primarily serving in central and east parts of Delhi and comprises about 1.7 million customers. Exceeding the conversation he stated that, for the first few years the growth was rather stable but over the last 4-5 years it has experienced incredible growth. In further conversation Mr. Sharma expelled the key responsibilities which are involved in BYP, as managing the load curve while delivering high-quality services and bringing out efficiency, because cost economics are involved and ultimately customers only have to bear the cost. And again he stated that they have done a detailed analysis and findings and enabled it through various campaigns, awareness programs, and the Government related schemes. Primarily BYP is acting as a nodal agency and implementing various rooftop schemes, even a lot of subsidies have also been introduced. Now the recent development is EV proliferation, so of course the load is going to grow considerably
Mr.AkshayDehedkar – Technical Manager (India) – Ningbo Deye Inverter Technology Co., Ltd Displayed the product details on technical parameters and the future planning of Deye and asserted that, he’s been working on the hybrid inverter as well as on-grid inverter since last five years and have a big after-sales team in over India, currently they are planning to launch the on-grid inverter for which they are working from the last 4-5 years. Mr.Akshay showcased the efficiency of the inverter they are working on, which is giving the 1.5 times situation ratio to use the more PV panels to the inverters to get more efficiency. Speaking more about the working of their inverter, he asserted that their inverters are giving a wide range of AC voltages comparatively, and they are using more AC side SPDs and all the different types of production to give this facility to the inverters.
Mr. Rajesh Tiwari, Lead, Central Design and Engineering – Hero Future Energies Speaking about the Solar rooftop, Mr. Rajesh asserted that, when the thermal power was there people used to assume that, solar can be used as a stand-alone and can be used for the independent pumping system or kind of the ruler electrification, where the kind of thermal power is not available, so hybrid system was mostly working over there. After that when the utility-scale solar power penetration and wind power plant penetration occurred or even the crisis of coal happened then it became a necessity for the system. Now if one is dependent on renewable power then there is a requirement for a kind of support that can support the grid stability as well since there’s a lot of inductive load and a lot of reactive power requirements. So considering all these points in Mr.Tiwari’s outlook this hybrid system is a necessity. The hybrid system is solar plus wind or solar wind plus green hydrogen.
Mr. Rajneesh Singh, Vice President – IT & SAP – Rays Power Infra (P) Ltd. Demonstrated a brief about his company, the Rays Power Infra, which got established in 2011, and in the last 10 years Rays power Infra has completed 1 Gigawatt solar project, as of now the company has changed its strategy and planning in terms of domestic as well as international. Continuing the panel discussion Mr.Raneesh mentioned that, the company is planning to do a similar kind of one-gigawatt solar project in the next 3-5 years, so currently they have 500-megawatt work in progress, 280 megawatts in Bangladesh and 220 in Karnataka and to improve the company’s internal as well as external processes they have to develop new advanced technology to the fast construction in terms of monitoring and as well as the parameters of improved generation. Further, he mentioned that solar is a kind of demand-supply game, so they have already geared up their adoption towards new technologies like Precast foundations, and IoT implementation, without compromising cost quality and other parameters also.
Mr.Shobhit Kumar, Vice President Product Management – SunEdison Explaining the consumer side Mr.Shobhit pointed out a few points to elucidate the certain challenges that these particular hybrid solutions are facing. Firstly the reliability part of the hybrid side, secondly the specifically in India the residential tariffs are quite subsidized so consumers are still enjoying the low subsidies which are about 6-7 rupees but when it comes to the hybrid part of it, it becomes more expensive for them and that looks more expensive in a solution for a consumer sector, so people start assuming that there are alternative solutions also like, UPS plus battery systems with the lead-acid batteries , which they can have it at their home and can still serve the purpose.
Mr.NithyanandamYuvaraj Dinesh Babu, Executive Director – EY Expelled the consumer mind-set for the solar rooftop and stated that, every consumer is different with their absolute different demands, so the hybrid comes as a new kid on the block, so the manufacturers need to understand not only the technical aspects but also the performance and the affordability aspects also, so that becomes the prime focus in terms of how the consumer’s readiness is there for the hybrids and accordingly the technical, the design or the operational specifications to be contoured around that. In the further conversation, he mentioned the other challenge also, which is the under confident DISCOMs on the hybrid systems, in his outlook the Design aspects of the system should be progressed in such a way that the consumer is happy to see that he has different options to choose rather than the standard option.
Another challenge that he mentioned is the emerging behind the meter market which was seen in Maharashtra and followed by Rajasthan and Gujarat and now picked up across the country.
Mr.Hemant Sharma, Co-Founder & CEO – EcoSoch Solar Shared his overall experience in this industry and mentioned the evolving status of the market, and stated that we are seeing a very big paradigm shift from off-grid to on-grid and nobody wants to buy on-grid, and again they were fed up and tired and we give them a lot of solutions briefing the latest technology like micro inverters and other forms but now I’m observing that since last couple of years the customers started coming to us and they want hybrid systems and we want an off-grid system. According to Mr.Hemant, it’s a very interesting move which he is experiencing with people’s outlook.
Mr.NileshShrikhande, Head – Roof Top and Product Engg – Tata Power Solar Systems Limited Shared his valuable insights and stated that, I’ve seen the platform for the operating inverters, generally we discuss the utility-based system and hybrid is the one subject which we don’t discuss much but in Tata Power Solar we were working on a myth for almost 8 years in the same system, but earlier also there are a lot of systems which are with hybrids systems and all these years we have experienced many missing systems which is a challenging fact, another challenge that Mr.Nilesh has mentioned that, while giving the standard solutions like the 3-kilometer pilot system tour and the retail customer channel, in that case, the system should be fit into that.
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