Residential energy storage has become an increasingly popular feature of home solar. A recent SunPower survey of more than 1,500 households found that about 40% of Americans worry about power outages on a regular basis.Of the survey respondents actively considering solar for their homes, 70% said they planned to include a battery energy storage system. Besides providing backup power during outages, many batteries are integrated with technology that allows for intelligent scheduling of the import and export of energy. The goal is to maximize the value of the home’s solar system. And, some batteries are optimized to integrate an electric vehicle charger. Life of a battery Warranty periods can offer a look in installer and manufacturer expectations of the life of a battery. Common warranty periods are typically around 10 years. The warranty for the Enphase IQ Battery, for instance, ends at 10 years or 7,300 cycles, whatever occurs first. Maintenance It is recommended by the National Renewable Energy Laboratory (NREL) to install a battery in a cool, dry place, preferably a garage, where the impact of a fire (a small, but non-zero threat) may be minimized. Batteries and components around them should have proper spacing to allow cooling, and regular maintenance check-ups can be helpful in ensuring optimal operation.

In Europe, photovoltaic agriculture has become a hot topic and continues to heat up. Both the French and German governments have designated photovoltaic agricultural technology as a core pillar of their energy strategies, demonstrating the major trend and mainstream status of photovoltaic agriculture in future agricultural development. Germany, France and Italy have established legal frameworks for photovoltaic agriculture, which is very helpful for the development of the industry，that are strategically implemented to benefit all parties impacted by the projects, including landowners, farmers, and surrounding community members.

From land to sea: offshore photovoltaics have obvious advantages Offshore photovoltaics are photovoltaic power stations built on the ocean. Compared with ground-based photovoltaics, offshore photovoltaics occupy less land but generate 5%-10% more power. This is because the water surface is open and unobstructed, the sunshine hours are long and the light reflected from the water surface is reflected. In addition, offshore photovoltaics can be easily integrated with other industries such as wind power, aquaculture, and hydrogen production to generate more economic value.   Our country has 18,000 kilometers of mainland coastline, but most of the coastal provinces are industrially developed and are in short supply of electricity and land resources. They can only rely on external power purchases and other methods to solve the power shortage problem for a long time. During peak power consumption, power shortages are inevitable. The development of offshore photovoltaic power stations can achieve nearby consumption and alleviate the power shortage problem in the eastern coastal provinces.   Actual demand and potential possibilities make both the central government and the eastern coastal provinces very optimistic about offshore photovoltaics.   Cui Lin, deputy director of the Ocean Energy Development Center of the National Ocean Technology Center, once said that the sea area where my country has installed offshore photovoltaics is about 710,000 square kilometers. Based on an estimate of 1/1000, more than 70GW of offshore photovoltaics can be installed.   Sun Yunlin told reporters that the application scenarios of offshore photovoltaics include coastal beaches, offshore areas, mid-sea areas and offshore areas. The construction of photovoltaic projects in different sea areas faces different difficulties.   To enter offshore photovoltaic, we must first confirm the rights to use the sea for the project. Public information shows that by May 2022, my country has confirmed a total of 28 offshore photovoltaic sea-use projects, with a cumulative confirmed area of ​​1,658.33 hectares, involving five provinces: Jiangsu, Shandong, Zhejiang, Liaoning, and Guangdong.   In 2022, Shandong and Zhejiang provinces have successively issued regulations for sea use of photovoltaic projects, making detailed provisions on many photovoltaic sea use issues such as sea use site selection, sea use methods and sea use scope, sea area use demonstration, planning and layout, etc. Liaoning, Hainan, and Tianjin have also introduced relevant policies for the ocean photovoltaic industry.   Among them, Shandong is the most active in encouraging the development and construction of offshore photovoltaics. In 2022, it will continuously issue documents to promote offshore wind and solar development.   In June 2022, Qingdao City, Shandong Province issued the "Notice on Several Policies and Measures to Stimulate Market Vitality and Stabilize Economic Growth" and its interpretation, clearly proposing to attract more social capital to support the development and construction of offshore photovoltaic and offshore wind power in a market-oriented manner.   In July 2022, the "Shandong Province Offshore Photovoltaic Construction Project Action Plan" released by the Shandong Provincial Energy Bureau mentioned that two major 10-million-kilowatt offshore photovoltaic bases will be built "around the Bohai Sea" and "along the Yellow Sea". Among them, the "Bohai Rim" 10-million-kilowatt offshore photovoltaic base has 31 offshore photovoltaic sites with a total installed capacity of 19.3 million kilowatts. "Along the Yellow Sea" 10-million-kilowatt offshore photovoltaic base has laid out 26 offshore photovoltaic sites with a total installed capacity of 22.7 million kilowatts.   As of July 2022, Shandong has launched the development of 11.25 million kilowatt projects at a total of 10 sites in Binzhou, Weifang, Dongying, Yantai, Weihai, Qingdao and other sea areas.   The reporter noticed that following the policy, many companies have entered this blue ocean.   In the competitive configuration list of 10 offshore photovoltaic projects announced by Shandong Province in October 2022, the selected companies include central state-owned enterprises such as China National Energy Group, China General Nuclear Power Group, China Power Construction Group, and Shandong Energy Group, as well as Longi Green Energy ( Private photovoltaic giants such as SH:601012), Trina Solar (SH:688599), and Chint New Energy (SH:601877).   Sun Yunlin told reporters that there are currently two main categories of companies deploying offshore photovoltaic projects: one is photovoltaic equipment manufacturers, and the other is manufacturers of floating bodies and anchoring systems. Inverter companies, engineering companies, etc. have also made technical reserves in the offshore photovoltaic field.     Everbright Securities has calculated the relevant market space. "Under optimistic assumptions, the market space for floating bodies and anchoring systems of marine photovoltaic power stations in Shandong Province alone will be 27.2 billion yuan and 1.9 billion yuan respectively."

Verification Demonstration: Floating power stations are mainstream   The ground photovoltaic bracket market has developed very maturely. So, how to install photovoltaic modules on the sea?   my country's coastal terrain is complex, the climate is different, and the sea surface environment has its own particularities. In order to adapt to the complex environment of the sea, there are currently two methods of offshore photovoltaic construction: pile-based fixed photovoltaic power stations and floating photovoltaic power stations.   Pile-based fixed photovoltaic power stations are suitable for tidal flat sites with water depths less than 5 meters, geological stability, and small water level changes. They are currently the mainstream of offshore photovoltaic construction. The aforementioned 11.25 million kilowatt projects at 10 sites in Shandong fall into this category.   Floating photovoltaic power stations use floating materials and anchoring systems to float photovoltaic modules, inverters and other power generation equipment on the sea to generate electricity. They are suitable for waters with water depths greater than 5 meters and that are not greatly affected by typhoons.   Although the development of floating technology is relatively late, it is recognized by the industry as a technological direction with greater development potential. The reason is that its application scenarios are wider and environmental problems are smaller.   From a global perspective, floating photovoltaic power plants are also a trend. According to media reports, more than 60 countries around the world are currently actively promoting the construction of offshore floating photovoltaic power stations, of which more than 35 countries have 350 floating photovoltaic power stations. According to a study published by the research organization Global Industry Analysts, the installed floating photovoltaic capacity deployed globally in 2021 will be 1.6GW and is expected to grow to 4.8GW by 2026.   At present, China's offshore floating photovoltaic power plants are still in the demonstration stage.   On October 31, 2022, the 20-MW deep-sea floating photovoltaic 500-kilowatt demonstration project of the Shandong Peninsula South No. 3 offshore wind farm successfully completed power generation and became the first deep-sea wind and solar floating photovoltaic demonstration project on the same site. State Power Investment Corporation is The project leader.     This project chose the "deep sea" scenario with the greatest challenge. The project is built on the sea 30 kilometers offshore and with a water depth of 30 meters. Workers installed 770 photovoltaic modules on a ring-shaped floating unit with a diameter of 53 meters and an area equivalent to four standard basketball courts. After the clean electric energy was collected in the inverter, it was sent to the Peninsula South No. 3 wind turbine platform operating on the same site. It is then sent to the power grid through an offshore booster station.

Difficulties abound: Many difficulties and obstacles need to be overcome Although the prospects of offshore photovoltaics are promising, it faces all-round challenges, including cost technology, environment, policy and many other problems that need to be overcome. High temperature, high humidity, high salt spray at sea, soft tidal flat soil, and long-term impact by wind, waves, tides, etc., place high requirements on the anti-corrosion and safety construction of photovoltaic power plants.   Taking the current mainstream technology route—pile-based fixed photovoltaic power stations as an example—in the northern seas, ice may hit the component array.   Floating photovoltaic power plants also face challenges from the sea. Tan Qitite, president of Jinko Technology Design and Research Institute, once wrote in an article that “the wind waves and wind speeds faced by offshore floating systems are much greater than those of inland lakes, and the superimposed tide level has a greater impact, so offshore floating systems are more inclined to comprehensive marine engineering. "   From a technical point of view, Sun Yunlin told reporters that the construction of offshore photovoltaic power stations requires the completion of "seven prevention" designs such as typhoon prevention, tide prevention, wave prevention, ice floating prevention, corrosion prevention, erosion prevention, and biological adhesion prevention. The complexity and difficulty are All are larger.   It is understood that the large-scale development of offshore photovoltaics is still in its infancy globally. Not only key technologies such as wave resistance, sea ice resistance, cold wave resistance, and salt spray resistance are in urgent need of breakthroughs, but also engineering design, construction, post-operation and maintenance, etc. There is also a lack of industry standards in this link. Both the early construction and development and the later operation and maintenance of offshore photovoltaics are much more difficult to promote than onshore photovoltaic power stations.   A series of difficulties have raised the construction costs of offshore photovoltaic power stations. A design institute in the industry found through a comparison of investments in conventional ground power stations and offshore power stations that, assuming the same type of modules are installed, the cost per watt of offshore photovoltaic module installation, bracket installation and pile foundation are respectively about 0.05 yuan and 0.05 yuan higher than those of ground power stations. 0.636 yuan and 0.679 yuan, the comprehensive additional cost is more than 1.365 yuan/watt higher.   According to calculations by the International Renewable Energy Agency, the construction cost of offshore photovoltaic power stations is about 5%-12% higher than that of onshore photovoltaic power stations. Among them, the cost of floating photovoltaic power stations is higher. Industry insiders have revealed that the raw material cost of floating photovoltaic power stations is 10%-30% higher than that of conventional photovoltaics.   Even the experimental investment in offshore photovoltaic power stations is expensive. Take the country's first offshore floating photovoltaic power station - Hainan Wanning offshore floating photovoltaic power station demonstration project as an example. This rectangular photovoltaic array project with a width of 30 meters and a length of 50 meters has only been in operation for more than ten days because it is a pilot project. , it was dismantled in accordance with relevant regulations. According to Zhang Xiaoming, the project leader and executive director and general manager of Zhongneng Zhongcheng New Energy Technology Co., Ltd., "a total of more than 4 million yuan was spent."   Sun Yunlin also said that from the perspective of the entire industry, unit investment cost is currently the biggest obstacle restricting the development of offshore photovoltaics. At this stage, the return rate of simple floating photovoltaic projects on the sea generally cannot meet the return rate requirements of investment companies.   Faced with these difficulties, the good news is that some local governments are gradually introducing encouraging and supporting policies. Taking Shandong Province as an example, it is clearly proposed that for floating offshore photovoltaic projects completed and connected to the grid between 2022 and 2025, the provincial finance will provide subsidies at the standards of 1,000 yuan, 800 yuan, 600 yuan, and 400 yuan per kilowatt respectively, and the subsidy scale shall not exceed 100,000 kilowatts, 200,000 kilowatts, 300,000 kilowatts, and 400,000 kilowatts.   On the corporate side, we are also promoting technology research and development and launching new products and achievements based on the characteristics of the marine environment. For example, Tongwei's TNC technology double-glass modules have obtained offshore photovoltaic certification from TV Nord Group; Trina Solar's Supreme series modules have obtained TV Rheinland offshore photovoltaic certification. This shows that my country’s offshore photovoltaic module products have been able to cope with the severe challenges from the marine environment.   In response to offshore operation and maintenance problems, LONGi Green Energy announced in April this year that it had developed a set of intelligent operation and maintenance technologies. As long as you enter the sea area in the software and fill in basic data such as wave height, wind speed, silt layer thickness, temperature, etc., the system will give an optimized design plan, such as the optimal inclination angle of the component bracket, how to arrange the array, etc. .   Construction costs, which the industry is concerned about, are also constantly decreasing. According to Tan Qitite, president of Jinko Technology Research Institute, the cost of floating and anchoring systems used in domestic floating photovoltaic power plants has dropped from the previous 1.5 yuan/W to about 0.6 yuan/W. According to Everbright Securities’ prediction, with the continuous advancement of offshore floating photovoltaic technology and the scale effect brought about by the increase in installed capacity, the cost of a single watt of the corresponding power station will drop from 10 yuan/watt to 4.25 yuan/watt.     It is still too early to say that the "turbulence" has arrived, but offshore photovoltaics is full of imaginative development prospects and is attracting more and more entrants. As technical obstacles and cost problems are gradually overcome, offshore photovoltaics will become a subdivided application scenario with unlimited opportunities and contribute to the achievement of the dual carbon goal.

المعرفة العامة:   1. أسطح البلاط الكهروضوئية المتصاعدة طريقة فعالة لتوليد الكهرباء من الشمس.   2. نظام تركيب السقف الشمسي يمكن أن يقلل من فواتير الطاقة الخاصة بك ويساعدك على توفير المال على تكاليف الكهرباء الخاصة بك.   3. تتطلب الأسقف الكهروضوئية صيانة قليلة أو معدومة ويمكن أن تدوم لعقود مع الرعاية المناسبة.   4. يمكن تركيب الأسقف الكهروضوئية على أي نوع من الأسطح تقريبًا ، بما في ذلك الأسطح المسطحة أو المنحدرة.   5. يمكن دمج الأسقف الكهروضوئية في الأنظمة الكهربائية الحالية واستخدامها لتشغيل الأجهزة والأجهزة الأخرى في منزلك أو عملك.   6. تعتبر الأسقف الكهروضوئية طريقة رائعة لتقليل انبعاثات الكربون والمساهمة في بيئة أنظف.   7. قد تكون الأسطح الكهروضوئية مؤهلة للحصول على إعفاءات ضريبية أو حوافز أخرى في بعض المناطق ، مما يجعلها أكثر فعالية من حيث التكلفة بمرور الوقت.   التصورات الخاطئة:   1. نظام الكهروضوئية للأسقف باهظة الثمن - على الرغم من أن التكلفة الأولية لتركيب السقف الكهروضوئي قد تبدو مرتفعة ، إلا أنه غالبًا ما يتم تعويضها عن طريق التوفير طويل الأجل في فواتير الطاقة والحوافز الأخرى التي قد تكون متاحة في بعض المناطق.   2. تتطلب الأسقف الكهروضوئية الكثير من الصيانة - في الواقع ، تتطلب معظم الأنظمة الحديثة القليل جدًا من الصيانة ويمكن أن تستمر لعقود مع العناية المناسبة والتنظيف المنتظم والفحص لمكونات النظام.   3. ستؤدي الألواح الشمسية إلى إتلاف سقف المنزل - باستخدام تقنيات التثبيت المناسبة ، يجب ألا تتسبب الألواح الشمسية في أي ضرر لسقفك أو هيكله ، طالما تم تثبيتها بشكل صحيح من قبل مُركب محترف مؤهل على دراية بالمتطلبات المحددة لسقفك النوع والظروف المناخية في منطقتك

لا يتفق So Good مع الرأي القائل بأن السقف المواجه للجنوب يكون دائمًا أكثر ملاءمة لـ نظام الطاقة الشمسية الكهروضوئية من سقف يواجه الشرق والغرب. لا يقتصر توليد الطاقة الكهروضوئية على إنتاج أكبر قدر ممكن من الكهرباء فحسب ، بل يتعلق أيضًا بتلبية الطلب المستمر على الكهرباء. سوف يولد النظام الكهروضوئي المركب على سطح مواجه للشرق والغرب حوالي 80 ٪ فقط من الكهرباء السنوية مقارنة بالسقف المواجه للجنوب. ومع ذلك ، فإن الطاقة الناتجة عن أ نظام الطاقة الشمسية يمكن تركيبه على سطح مواجه للشرق والغرب طوال اليوم ، حيث لا يزال النظام يتلقى الكثير من ضوء الشمس في الصباح والمساء.   العديد من أصحاب المنازل الذين ليس لديهم سقف لتركيب أ حلول الأنظمة الكهروضوئية غالبًا ما يفكر في الاستثمار في نظام شمسي مكون من مكونات إضافية. يمكن تركيبها إما على الشرفة أو في الحديقة. ومع ذلك ، قد يصاب الركاب بخيبة أمل إذا كانوا يتوقعون منهم تشغيل الأجهزة المنزلية مثل آلات القهوة.   "هذه اللوحات مناسبة بشكل خاص لتغطية الحمل الأساسي للمنزل ،" يوضح وايت ، "حيث يتم استخدام الكهرباء مباشرة ، على سبيل المثال ، للهاتف أو جهاز توجيه الإنترنت أو راديو المنبه."   سيتم توفير المزيد من الطلب على الكهرباء بواسطة الشبكة. على سبيل المثال ، تتطلب آلة صنع القهوة حوالي 2000 واط لغلي الماء للتدفئة. وفقًا لـ So Good ، لا يمكن تحقيق ذلك من خلال الوحدات الكهروضوئية للشرفات وحدها.

المنتج الجديد الذي طوره طاقة جيدة جدا، لقد مرت الأرفف الشمسية القابلة للتعديل للشرفة بالفعل شهادة CE من الاتحاد الأوروبي. في الوقت نفسه ، يكون الوزن أخف ، مما يسهل تثبيت الأرفف الشمسية أثناء الحصول عليها أنبوب خارجي أكثر جمالا الميزة الثالثة ، يتم تجميع المنتجات مسبقًا ، مما يوفر لك خطوات التثبيت ويقلل من وقت التثبيت. لإطلاق هذا المنتج الجديد ، ستزودك So Good Energy أيضًا بإرشادات خدمة التثبيت الفردية وستكون متاحة لك عبر الإنترنت على مدار 24 ساعة في اليوم.

Tile roof solar mounting system in Malaysia