Old Rocks
Diamond Member
And if it works very well, and it will, they can scale it up, and scrap the diesel generators. A model for the whole of continental America.In this case, the battery was not designed to carry the grid for more than that. The important thing that it does is smooth out the variable power from the windmills. The response time was an unexpected bonus, and saved the utility an estimated one and one half million dollars. And since that time, it has happened one more time. So that battery has earned 3 million dollars since 1Dec17. Now there is a Tesla battery that is carrying a nearly full grid load;Not only cannot you do simple math, you cannot read. The windmills and a Tesla 100 MW battery kept the grid from going down in Australia when a coal fired plant dropped offline. And I stated renewables in combination with grid scale batteries.As you damned well know, it is not the government that will spend trillions of dollars on windmills and solar. It is the utility companies, with or without subsidies. Because both wind and solar generate electricity cheaper than any fossil fuel. Combined with grid scale storage, renewables are the future, no matter how much that distresses you.
What a ridiculous statement. They can't be cheaper you boob because you have to maintain a fossil fueled powerplant online to provide power when they invariably fail.
Tesla megabattery saves grid from generator failure? - Enterprise Times
Only commissioned on December 1st, a Tesla megabattery (the Hornsdale facility) ‘stepped in’ to balance the grid – reacting in 70ms and beating by far the contracted 6 second response time from another power plant. Though ‘unexpected’, the value of battery support for electric grid operations has again demonstrated itself.
Last week the Loy Yang power station tripped without warning early in the morning. This produced an immediate loss to the grid of 560MW. In turn this produced a network frequency slump (it fell below 49.80Mhz). What happened next startled electricity industry professionals. The implications for grids in the future are only starting to seep in.
The failure
The Loy Yang A 3 power station is a brown coal power station located in Victoria, about 150 Kms east of Melbourne. It tripped without warning at 1.59AM.
Such events occur. But network frequency drops, beyond certain parameters, can damage equipment, especially customer equipment. To minimise any impact, electricity and/or network operators contract for emergency input to the network to restore the grid frequency.
In this case another coal powered generator – the Gladstone Power Station (some 2000Kms away in Queensland) possessed the contract to respond and deliver FCAS (Frequency Control and Ancillary Services). The contracted response time was a ‘normal’ six seconds.
Yeah, that tesla battery can operate for ONE HOUR. What they did was basically a propaganda demonstration.
Tesla's solar and battery project in Hawaii: we do the math
Tesla has contracted with the Kauai Island Utility Cooperative to provide up to 52 MWh of electricity to the grid every evening. The utility has agreed to pay a flat rate of 13.9 cents/kWh for this stored sunlight, about a 10-percent discount to the price they pay for power from diesel generators.
(The island will still need to burn diesel during peak electricity periods - it just won't need to burn as much. Plus, it’s occasionally cloudy and rainy, even in Hawaii.)
CHECK OUT: Tesla, SolarCity, and Ta'u: sun, storage batteries, clean energy (video) (Nov 2016)
As for why Tesla can’t sell electricity directly to the grid during the day, Kauai’s grid simply can’t absorb any more solar: at midday, photovoltaics can already produce upwards of 90 percent of the island’s needs.
Yes, imagine that. They install more solar modules than are needed to insure they can continue to produce power, AND they are covering an area the size of Vatican City to do so....and, they still have to have diesel generators for when it rains. But, overall, I think it's a good experiment to see how good the system works.