The new kids on the block are starting to take the world by storm, and are only going to grow in popularity and efficiency. No, they are not a pop sensation of teens singing songs of growing up and high school sweethearts. The new kids are solar street lights that will bring energy production and dispersement directly at the site of the light itself. Solar street lights have come a long way since their piecemeal configurations of large solar panels and inefficient luminaires. Today, companies such as SolTek Renewables are working to supply customers across the globe with a new generation of area lighting that is on par and above the standards of conventional lighting methods. Their lights use CREE LED fixtures that are highly efficient, safe to use, generate minimal heat and produce illumination (in foot candles) that often exceeds traditional non-LED luminaires. With these positive aspects, the most cost-effective energy source to power LED luminaires is by employing sealed lead-acid gel rechargeable batteries, much like what is in most cars on the roads today. So, why use a lead-acid battery as opposed to a Lithium battery? First, the cost of lead-acid batteries is within the economic realm of most users. Their capacity is high for the size and initial investment, so they are the chemistry of choice for solar street lights. Being that the batteries are essentially car batteries (and comparatively priced), they are 95% recyclable and have a typical life-span of 5 to 7 years. Coupled with a smart controller that regulates the charge from the battery to the LED fixture at night, lead-acid batteries have a system autonomy of anywhere between 3 to 6 days (typically toward 6 days). This means that the solar panel will collect photons (light) from the sun in a span of 2 to 4 hours and charge the battery to capacity. At night, the light will illuminate with a steady discharge from the lead-acid battery as specified by the controller. If the following 3 to 6 days are occluded with thick cloud cover or stormy conditions, the battery will continue to operate as intended over the next 3 to 6 days until it needs the 2 to 4 hours of sunlight to get a full charge again. What does this mean for regions where sunlight is more likely to be out more than once every 6 days (realistically, how often, if ever, does that happen)? It means that illumination autonomy can be achieved by users/owners of solar street lights. It means that you are now 100% energy efficient with regard to generation and use. It means you are using 100% renewable energy. It means local energy generation, thus eliminating the dirty energy of coal and oil sources. It means savings for your local economy as you have eliminated fees incurred by local utility companies (they can raise the rates all they want, you are not paying a penny to them with autonomous street lights). It means it can happen now (2 months installation from factory to site). It means that you save money from the get-go as you have eliminated trenching and expensive wiring to the utility grid. Stay tuned for our next blog on the CREE LED luminaires that are used in the solar street lights from SolTek Renewables. Reliable, clean and effective lighting is here to stay.
1. Solar street lighting is a unique opportunity for sustainable recovery | Greenbiz
This article is sponsored by Signify. In response to the economic fallout from COVID-19, the European Union has formulated a major recovery plan for the continent with a key focus on adapting to the digital age and investing in cleaner and more resilient technologies for the future. In the U.S., the 2021 American Jobs Plan aims to steer $2 trillion into productivity and long-term growth, including a strong focus on building resilient and climate-friendly infrastructure. With economic and climate resilience plans taking a more concrete shape across the globe, Signify believes that solutions such as solar lighting pave the way for countries to build back better. According to Allied Market Research the global market solar energy was $52.5 billion in 2018 and is set to grow to $223.3 billion by 2026, vastly accelerating the scale of renewables. One of the fastest growing solar technology segments is street lighting. "Solar street lighting technology has come on leaps and bounds in recent years and is fully aligned with the goals of EU and U.S clean energy and economic stimulus initiatives. Just 15 streetlights can save enough electricity to power a home for a year," said Harry Verhaar, global head of government and public affairs at Signify. "Being a digital technology, it can be connected to sensors and be controlled remotely, enabling forward-thinking municipalities to leapfrog to solar and reap the benefits of the digital age." President Joe Biden's administration already has proposed $621 billion of additional investment in transportation infrastructure, with $20 billion earmarked to improve road safety and $174 billion for electric vehicles. A sizeable chunk of the latter would be spent on grant and incentive programs to build a national network of 500,000 electric vehicle charging stations by 2030. Signify advocates specifically for the wide adoption of solar and solar hybrid powered street lighting which will not only help improve road safety, but also pave the way to lower emissions and eliminate the need for extra power stations to power the street lamps. This is particularly useful in more remote areas where existing infrastructure is minimal. With the strain taken off power stations, excess capacity could be diverted towards supporting charging stations for electric vehicles. Solar is the ideal technology for serving far-flung communities with intermittent power supply or coverage. For example, in 2020, Signify installed solar streetlights on the Greek island of Leipsoi in areas lacking full electricity coverage including a playground, allowing the community to feel safer. A total of 28 autonomous Philips SunStay luminaires were used, each combining a solar panel, an LED light, a charge controller and a battery in one housing unit. The lights also contained an infrared motion sensor which detects movement and alters brightness accordingly, increasing energy efficiency and minimizing light pollution. "As we have many hours of sunshine throughout the year this is a very effective and functional solution for those areas on our island that are not connected to the power grid," said Fotis Mangos, mayor of Leipsoi. "The lights have such an aesthetic design that they seamlessly blend in with our island's natural landscape." The electricity grid does not always follow the street layout on the island and the solar installation allowed for an inexpensive, unobtrusive and environmentally friendly way to light roads and pathways without needing to dig trenches for electrical cables. "Solar lighting is a key part of our commitment to sustainability and to climate action, as we aim to help people move to cleaner technologies," said Signify's country leader for Greece, Polydefkis Loukopoulos. "The expansion of solar lighting in new areas of Greece strengthens our vision to provide local communities with the security that results from high-quality solar lighting." With the addition of hybrid technologies, solar lighting is a feasible solution in areas with only seasonal sunshine, allowing countries at higher latitudes to access its benefits. This technology broadens the market for solar power. A version of solar is available beyond sun-soaked countries to around 6.5 billion people in the world. According to Antonio Espada, head of public segment in Europe for Signify, solar hybrid street lighting is the best of both worlds. It uses sunlight to charge its batteries and on cloudy days seamlessly switches to electricity from the grid. It's highly energy efficient and increases the use of renewables and balances electricity loads. The battery power can be used during peak hours so fewer power stations are required. "Solar and solar hybrid power streetlights are particularly well suited to countries and regions where power outages are common. It can help deter crime and contributes to safer, more resilient communities," added Verhaar. Ultimately, solar lighting is an accessible, efficient and future-proof solution for community development, and one which could hugely benefit global recovery on both sides of the Atlantic. Discover more on how lighting can help to meet Green Deal targets.
2. The solar street light is not bright, what is going on?
The installed solar street light is no problem. It will not be easy to light up for a while. It is necessary to check the indicator light of the controller first and see the status of the indicator light of the controller to identify the shortage. If there are 2 indicators If it is not bright, the controller will be damaged early, and the system will be destructive to strong current values, such as lightning or short-circuit faults. 1, The light source is damaged Due to the natural environment or the cause of the human error, the light source is damaged, resulting in the solar street light system not working, when the light is not bright, flashing, etc. Solution: Check the light source or replace the light source. 2, Solar photovoltaic panel damage Connect the digital multimeter to check the working frequency when the solar photovoltaic panel has no load. The general system working voltage is 12v, which is generally higher than the 12v working frequency. Only when the working frequency is higher than 12V can the battery be charged. 12V cannot charge the battery. The solar street light system cannot work or has insufficient working hours. Solution: Disassemble the solar panels. 3, The solar photovoltaic panel positive and negative plugged into the wrong After the solar garden light reinstalls the system, it always lights up once. When the battery is used up, the solar garden light is no longer easy to light up. Solution: Replace with the positive and negative electrodes of solar photovoltaic panels. 4, Battery damage Connect the digital multimeter to check the working frequency when the battery is not loaded. The general system working voltage is 12.8v, which is generally higher than the 12.8v working frequency. If it is lower than 12.8V, the battery explosion-proof switch can not be charged and discharged. The solar street light system cannot work or has insufficient working hours. At this time, everyone must use the charging plug to charge the battery. If the battery does not charge enough power, be sure to remove the replacement battery. Up and down is the reason and the treatment method of the relevant solar garden light is not bright. To solve this, to ensure that the natural light garden light is no problem, the punctual solar power circuit lamp manufacturer maintenance inspection is essential. As a professional manufacturer of solar-powered circuit lights, we will provide consumers with a permanently free service to provide maintenance and repair services for consumers. Details of the baby-related to the solar garden lights.
3. Recycling light from solar street lights.?
Solar cells are not very efficient so only a small part of the light could be captured as electricity. Otherwise it would be perpetual energy which is impossible
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