Aurora’s activities today in the Avenue are working towards Willow Court having a good supply of electric power along with others in the Avenue, by the photos this is very close to finishing. Willow Court has a lack of electric power and security, but this last week and this week the Avenue will be closed while underground cables are installed.
Every now and then, there is comment in the media about solar being responsible for power price rises: such as the article below. In comparison, the power companies are increasing prices by 16-18% per year due to their increased cost to fix ageing infrastructure – cables and poles.
This entry was posted in Solar Power Industry News and tagged Electricity costs, electricity prices, kwh, power prices, solar power by LJW Solar. In the 1880s, electric lighting systems were some of the first applications of electricity to modern American life.
One of the biggest differences between the small electricity grid at Pearl Street and the electricity we use today is that Edison used direct current (DC), while today’s grids use alternating current (AC). In fact, Edison’s Pearl Street Station had no “transmission” component, as we use that term today.
A Serbian-American inventor named Nikola Tesla is the most famous of the electrical engineers who revolutionized the way we transmit electricity. In 1893, Westinghouse and Tesla saw an opportunity to prove that AC was the system of the future to an audience of millions at the Chicago World’s Fair.
Later in 1893, the Niagara Falls Power Company awarded Westinghouse a contract to harness the power of Niagara Falls and to deliver it to Buffalo, New York—22 miles away—using his new AC technology. Westinghouse’s new transformers allowed him to send power efficiently first to Buffalo, New York, and ultimately all the way to New York City as more generators came online at the station. Samuel Insull, a pioneering young businessman who had worked as Edison’s assistant and then business partner, had a breathtaking vision for electricity in the era of long-distance transmission. Pushing the physical and economic limits of the high-voltage AC transmission system, Insull revolutionized the electricity industry by building larger generators and by transmitting power over longer distances. Insull’s focus on spreading electricity to new customers made him one of the great “democratizers” in American history.
The characteristic feature of modern electricity transmission is the high-voltage power lines that stretch across the entire continent.
The grid is actively monitored 24 hours a day by various grid operators, also called balancing authorities. Although transmission represents a small portion of the overall cost of electricity, building and expanding the electricity transmission infrastructure is expensive. Because of these high capital and administrative costs, the transmission system exhibits what economists call “economies of scale.” That is, as the system gets larger, the cost per unit of electricity goes down, and it becomes increasingly difficult to build a competing system that is economical. By pricing transmission congestion, RTOs drive transmission investments to the parts of the grid that are constrained.
The future of the electricity transmission grid is generally bright, with investment now hitting its highest levels in decades. His research focuses on global energy politics, mining, infrastructure and trade, global political risk and macroeconomics. The cost of electricity in Kenya has really reduced and it is attributed to the additional 140 MW to the national grid. Kenya’s president Uhuru Kenyatta, during the commissioning of the lasr phase of the 280MW of geothermal power, said that the move was aimed at stabilizing the cost of electricity in East Africa. According to Kenyatta, the country is also likely to see an increase in export production and expanded employment opportunities for Kenyans. Following the additional MW to the power grid, the cost of fuel has fallen by 65 percent to 2.51 Kenyan shillings per kilowatt per hour.
It looks like not only key a will be enjoying the benefits of electricity as Rwanda will start importing electricity from Kenya. With this  in progress Kenya, according to the government will be spending  about $2 billion to upgrade its power distribution systems. The Kenyan government said that it will spend about 2 billion US dollars in the medium term to upgrade its power distribution systems.
The East African country is looking at increasing its national power output to 5,000MW by 2016 in order to spur industrial growth.


In 2009, for the second year in a row, both the US and Europe added more power capacity from renewable sources such as wind and solar than from conventional sources like coal, gas and nuclear, according to twin reports launched today by the United Nations Environment Programme and the Renewable Energy Policy Network for the 21st Century (REN21). Renewables accounted for 60 per cent of newly installed capacity in Europe and more than 50 per cent in the USA in 2009. The reports detail trends in the global green energy sector, including which sources attracted the greatest attention from investors and governments in different world regions. Investment in core clean energy (new renewables, biofuels and energy efficiency) decreased by 7% in 2009 to the value of $162 billion.
New private and public sector investments in core clean energy leapt 53 per cent in China in 2009.
Globally, nearly 80 GW of renewable power capacity was added, including 31 GW of hydro and 48 GW of non-hydro capacity. China surpassed the US in 2009 as the country with the greatest investment in clean energy. The UNEP report focuses on the global trends in sustainable energy investment, covering both the renewable energy and energy efficiency sectors.
Mohamed El-Ashry said, “Favorable policies now in place in more than 100 countries have played a critical role in the strength of global renewable energy investments recently.
After electricity is generated at a power plant, it needs to be transmitted on high-voltage power lines before it can be distributed to our homes and businesses.
In those early systems—like Thomas Edison’s Pearl Street Station in Manhattan, which energized America’s first power grid—electric power stations served customers in a small network that covered only a few city blocks. Early power grids were small by today’s standards, in part because of the physics of direct current networks. Copper wires buried underground carried power only a short distance from the station to the electric lamps of Edison’s customers. Working with entrepreneur George Westinghouse, Tesla and the early AC engineers made long-distance electricity transmission possible.[3] Instead of generating DC power, their solution was to generate a completely different kind of electric power—AC—and to use new transformers to increase and decrease the voltage.
With the help of Tesla and other electricity innovators, Westinghouse Electric Corporation built a hydroelectric power station at Niagara that would again test AC technology. Year after year, his Chicago-based company brought the cost of electricity down while significantly increasing the number of people with access to it. By the end of the 1920s, his companies were serving more than four million customers in 32 states.[11] He would go on to network his transmission facilities with those of other companies, creating an interconnected web of electricity that powered cities and farms alike and laid the foundation for today’s power grid. These balancing authorities work to keep the electric grid in balance at all times by making sure that the supply of electricity meets demand in real time.
We don’t experience the “tea time pick-up” shown in the video above, but demand on grids in the U.S. As it leaves the power station, electric power is typically stepped up to anywhere from 69,000 to 765,000 volts.[19] Compare this to the electricity in your home, which comes in around 120 to 240 volts. The transmission system’s size and complexity are significant barriers to entry for new companies, owing to the massive initial capital investment needed to transmit power. As a result, economists consider electricity transmission a “natural monopoly,” where only one utility will supply a given area with just one grid.
They also make wholesale markets more transparent and allow the conditions on the grid to be visualized with the help of a price contour map. Some transmission investments are driven organically by market signals or reliability concerns, for example, and other investments are driven by politics.
Manufacturers will have access to electric power at rates devoid of transformation costs,” he said. With this in hand, Kenya is ready to start exporting electricity to its neighbouring countries. This  move will be made possible following Kengen’s effort in increasing its electricity production as well as distribution systems.
Meanwhile, plans are underway for the power producer to raise Ksh.15 billion through a rights issue to finance expansion of its power generating capacity. The government identified energy as one of the infrastructural enablers of growth and macroeconomic stability, equity among others. This year or next, experts predict, the world as a whole will add more capacity to the electricity supply from renewable than non-renewable sources.


Many sub-sectors declined significantly in money invested, including large (utility) scale solar power and biofuels.
If spending on solar water heaters, as well as total installation costs for rooftop solar PV, were included, total investment in 2009 actually increased in 2009, bucking the economic trend. China’s wind farm development was the strongest investment feature of the year by far, although there were other areas of strength worldwide in 2009, notably North Sea offshore wind investment and the financing of power storage and electric vehicle technology companies.
Investment totals in utility-scale solar PV declined relative to 2008, partly a result of large drops in the costs of solar PV. The REN21 report offers a broad look at the status of renewable energy worldwide today, covering power regeneration, heating and cooling and transport fuels, and paints the landscape of policies and targets introduced around the world to promote renewable energy. Resilience to the financial downturn that was hitting all sectors of the global economy and frustration that, while the UN climate convention meeting in Copenhagen was not the big breakdown that might have occurred, neither was it the big breakthrough so many had hoped for. This page focuses on the middle stage—electricity transmission from power plants to local distribution grids.
DC networks had to operate at low voltages in order to be safe, the downside being that transmitting low-voltage power is inefficient. Pearl Street was a huge leap forward—some call it “the beginning of modernity”—but grids powered by direct current only worked in densely populated areas like lower Manhattan.[2] It was nearly impossible for anyone to implement on a wider scale. That was the beauty of the AC breakthrough: it meant that electricity could be transformed from low to high voltage and back, which increased the efficiency of transmission and allowed Westinghouse’s early transmission lines to span longer distances. These were important engineering milestones, but what visitors adored was the sheer beauty of seeing so many lights ignited in one place, at one time.” The Devil in the White City, by Erik Larson[5]. The team of engineers at Westinghouse’s company had to build custom transformers to increase the voltage of the power generated at Niagara from 2,200 to 11,000 volts before placing it on transmission lines. By 1911, Insull’s AC grids spanned entire states.[10] At the same time, Insull was influential in creating the regulatory framework for electric utilities, which is still generally intact.
Currently, no technology exists that can store electricity cost-effectively on a large scale.[16] For that reason, balancing authorities rely on generators to respond to changes in demand at a moment’s notice.
The unique economic structure of transmission is one of the main justifications for government regulation in this industry. This is an important distinction when talking about the level of transmission investment because political investments may not directly improve the reliability or the economic efficiency of the grid.
My government is committed to reducing the cost of energy and the cost of production in order to accelerate development,” Kenyatta noted.
However, this decline was offset by record investment in small-scale (rooftop) solar PV projects. The REN21 report was produced by a team of authors in collaboration with a global network of research partners. Indeed, renewable energy is consistently and persistently bucking the trends and can play its part in realizing a low carbon, resource efficient Green Economy if government policy sends ever harder market signals to investors,” he added. In many ways, electricity transmission is the unsung hero of our modern, electrified economy. In the video below, the BBC explores the challenge of keeping the British National Grid grid in balance in the face of demand fluctuations.
Below, we see a typical “load curve,” which is an illustration of the level of demand at different times of day. Also called locational marginal prices or LMPs, they reflect the marginal cost of electricity generation plus a transmission premium. It is the task of grid operators to increase and decrease supply to follow this curve, second by second. Yet in the future, that might not be the case, as new laws and regulations threaten to make the grid unstable.



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