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Kyushu Electric shuts off renewable suppliers from grid

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This is why the government need to hurry up and separate the grid from the dominant electricity suppliers. I would imagine the more solar plants they connect the more stable the supply will be as localised fluctuations will become a smaller fraction of the total renewable supply.

2 ( +3 / -1 )

Japanese systems, logic, and common sense ( or lack of ) at work here.

0 ( +2 / -2 )

no scrote, the more solar plants they add the bigger the blackout will be on rainy days or cloudy days. we have been talking about this, no nuclear or hydropower plant or fossil fuels or gas plant no electricity. things like wind ecology or solars are only for small projects like a small house or a farm. not for huge cities that hit over a million

-1 ( +0 / -1 )

The solar panels can be linked with gas fired turbines which can respond to any power imbalances but the truth is, Kyushu Electric wants to restart its nuclear reactors and have been given permission by the NRA to restart two of them but need local approval.

Kyushu is an important location for solar energy since it also has the highest levels of sunshine. The power utilities monopoly over power generation and supply is due to end next year which means the power utilities put their power into the national grid and other companies will buy and sell the power. There will be also new power grid companies.

At the moment power generation and supply is done by region but with the new system it can be national, so power generated in Kyushu can be bought in Kansai.

Kyushu Electric will still buy solar power from domestic homes fitted with panels but will refuse from plants greater than 10MW.

A national level of about 80GW of power from solar power would be a world record and could be a big part of the 280GW needed daily. That would be about twice the amount generated from nuclear energy.

2 ( +4 / -2 )

Japan can't have a "national grid" because of incompatible frequencies between east and west Japan and inadequate conversion capacity that will never change because it walls off any competition between them.

The industry is a living example of modern feudalism.

0 ( +2 / -2 )

Japan can't have a "national grid" because of incompatible frequencies between east and west Japan and inadequate conversion capacity that will never change because it walls off any competition between them.

That is true and also very stupid. But there are two grids East & West with a small amount of conversion cross over. By 2016, these two national grids will operate in a very different way than current.

Power generation will also change with the power utilities moving or extending their operational areas. For instance, Kansai Electric Power in partnership with another company will build a new power plant in Sendai in order to sell that power to Tokyo consumers which means an eventual price competition.

Other utilities are moving into other regions to offer power sales.

Power sales companies will buy power from the East or West grids and sell it onto its customers. Some companies will offer only power generated from renewables so some customers may decide to use that.

0 ( +2 / -2 )

So is there a plan in the works to unify the AC power standard throughout all of Japan? Pick one frequency or the other, then have everybody switch over? It's my understanding that most electrical devices are already dual frequency - either automatically or via a switch. There would just need to be a training period for consumers similar to when TVs went from analog to digital.

0 ( +0 / -0 )

Zichi,

The solar panels can be linked with gas fired turbines which can respond to any power imbalances but the truth is, Kyushu Electric wants to restart its nuclear reactors and have been given permission by the NRA to restart two of them but need local approval.

Why should Kyushu Electric build gas turbine plants to accomodate people who want KE to buy their electricity - the solar suppliers should build those plants.

0 ( +0 / -0 )

zichi, they will never make more electricity than nuclear. that is found by studies, solar energy is either too weak to make massive amount of electricity or either too much space. the gas turbines are worst than nuclear, it pollutes the invironment and u can plant on the soil. whereas nuclear can hit up to 2,000GW. solar will only feed individual homes. the gas turbines ur talking about are alot weaker as we speak. But even solar in every house will help but wont replace nuclear.

0 ( +0 / -0 )

@taiga_1

zichi, they will never make more electricity than nuclear. that is found by studies, solar energy is either too weak to make massive amount of electricity or either too much space. the gas turbines are worst than nuclear, it pollutes the environment and u can plant on the soil. whereas nuclear can hit up to 2,000GW. solar will only feed individual homes. the gas turbines you are talking about are a lot weaker as we speak. But even solar in every house will help but won't replace nuclear.

Prior to the 3/11 nuclear disaster nuclear energy generated 27% of total power, or 48GW from a fleet of 54 reactors. If and when the reactors are restarted, according to the NRA less than 20 will pass the new safety standards and in future will only generate 10% of total power or about 28GW.

Both fossil fuels and renewable energy will be needed. If the 80GW of solar is installed it will help to reduce the demand from fossil fuels. Gas turbines can also biogas and not just LNG.

@star-viking

Why should Kyushu Electric build gas turbine plants to accommodate people who want KE to buy their electricity - the solar suppliers should build those plants.

That's probably correct but also power companies need to update their fossil fuel fired plants because too many of them are old ones not using available technology to make them more efficient and cleaner running.

2 ( +4 / -2 )

zichi

ya ur right that it will help for the meantime. but lets not abandon the powerfull nuclear plants that can light industries especially that need a high amount of electricity. safety will also develop new technologies and new area for japan to be advanced in one area atleast.

0 ( +0 / -0 )

powerfull nuclear plants that can light industries especially that need a high amount of electricity

or quit trying to sustain these industries in a resource poor location like Japan and do something sustainable besides mega-scale heavy industry. That strategy is very last century and does nothing to help Japan more forward to build on its craftsman and tourism strengths.

0 ( +0 / -0 )

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