You may recall that Matthijs wrote a blog, late last year, about building an unattended battery based energy system
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Tesla will power the Hawaiian island of Kauai with solar panels and its giant battery packs.
Tesla officially unveiled the project Wednesday morning in Kauai following opening remarks by CTO JB Straubel and David Ige, governor of Hawaii. Tesla partnered with the Kauai Island Utility Cooperative (KIUC) to launch the project.
The solar farm is composed of 54,978 solar panels with 13 megawatts of solar generation capacity. Tesla has also installed 272 of its large commercial battery,
Solar -powered electric bus that’s making people rethink the possibilities in the country has been unveiled by
The United Labour Congress (ULC), said the power sector has become an embarrassment to Nigerians four years after delivering interrupted electricity supply to the nation upon the transfer of the successor companies of the defunct Power Holding Company of Nigeria (PHCN) to private sector.
President of the union, Comrade Joe Ajearo, who disclosed this in his May Day speech in Lagos, also wondered why Nigerians were still celebrating 4,000MW and forced to pay estimated electricity bills against the promise of the new owners of the companies.
He reiterated the need for the Federal Government to invest in solar power energy and to also revisit the privatization of the power sector with a view to ensuring that it added value to the lives of Nigerians.
He said,
(CNN)Often in the middle of nowhere, surrounded by acres of land, South Africa’s airport environs are solar farms waiting to happen.
With over 2,500 hours of sunshine per year in South Africa, it makes perfect sense for the country’s airports to tap into this local resource.
In the last year, Airports Company South Africa (ACSA) has unveiled three solar-powered airports across the country, the first on the African continent to harness solar power.
By the end of this year three more regional airports will join the green initiative by launching solar power plants.
The state-owned ACSA told CNN that it is committed to reducing the pressure on South Africa’s constrained power grid by around 50%.
This is because the solar farms currently supply approximately 45% of the airport’s power requirement. The remaining 55% is drawn from the national grid.
“The long-term plan is to have the airports generate their own energy,” says ACSA corporate affairs senior manager, Senzeni Ndebele.
The company intends to “greenify” all its airports and achieve carbon neutrality by 2025, Ndebele explains.
South Africa was once the “darling of the renewable world” with a number of solar farms and an increasing amount of renewable energy being plugged into the national grid, energy analyst and director at QED Solutions Dirk de Vos tells CNN.
However, state-owned electricity utility Eskom has held off on signing new deals to buy renewable energy from private firms, saying they are too expensive — although Eskom maintains that renewables will remain part of the country’s energy mix.
But smaller-scale developments, such as airports and shopping malls, have taken advantage of the country’s well-developed solar sector.
“That whole ecosystem and skills base is still operating and can be used for smaller commercial rooftop PV operations quite successfully,” he says.
“South Africa’s solar future is going to be organic and done by companies to reduce their dependence on the grid and generate their own electricity.”
De Vos considers solar power to be a competitive, cheap alternative to “electrify parts of South Africa” that might have otherwise been in the dark.
“I think we’re at the initial stages of a solar energy revolution,” he says.
Located halfway between Cape Town and Port Elizabeth, George airport boasts a 200-square-meter solar plant which currently delivers 750Kw power.
Kimberley Airport, situated in the capital of the Northern Cape Province, began operating its 1.7 acre solar power plant in May 2016, a month after George Airport.
Further north, Upington’s solar plant, which opened in July 2016, delivers 1 million kilowatt hours of power per annum to the airport.
Preparations are underway for Port Elizabeth International Airport, Bram Fischer International Airport and East London Airport to launch solar PV systems in October, November and December respectively.
By 2025, ACSA’s strategy is to become the “the most sought after partner in the world for the provision of sustainable airport management solutions.”
It
EasySolar is an extremely powerful sine inverter, battery charger and automatic switch in a compact casing.
In the event of a supply failure or when the generating set is switched off, the EasySolar will switch over to inverter operation and take over the supply of connected devices. This is done so quickly that operation of computers and other electronic devices is not disturbed. You will have uninterrupted power supply. This makes the Easysolar highly suitable as an emergency power system in industrial and telecommunication applications. The maximum alternating current that can be swtiched is 16A or 50A depending on model.
Besides the usual uninterrupted output, an auxiliary output is available that disconnects its load in the event of battery operation. For example, an electric boiler that is allowed to operate only if the genset is running or shore power is available.
With this inverter, up t0 6 Multi’s can operate in parallel. Six units 24/3000/70, for example, will provide 15kw/18kva output power and 420Amps charging capacity.
We can help you configure three phase outpout with this EasySolar inverter. But that is not all, up to 6 sets of three units can be parallel connected to provide 45kw/54kVA inverter power and more than 1000A charging capacity.
This particular inverter takes the principle of “Powercontrol” to a further dimension, allowing the Easysolar to supplement the capacity of the alternative source. Where peak power is so often required only for a limited period, The EasySolar will make sure that insufficient NEPA or generator power is immediately compensated for by power from the battery. When the load reduces, you can use the spare power to recharge the battery.
EasySolar inverter has an ultra fast MPPT controller that will increase charging rate by 30% in case of a cloudy day compared to PWM charge controllers and by up to 10% compared to slower MPPT controllers.
Our Easysolar inverter does not need cooling fan, it has maximum efficiency that exceeds 98%. full output current up to 40c(104F).
Solar Smartflower: Will it take off?
The controversy between the federal government and the power investors over the obvious failure of both parties to meet the terms of the privatization agreement has deepened with the recent opposition of the distribution companies to the government