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Jörgen Ekelund

Here Comes the Sun - The Chart Paul Krugman Left Out | john-farrell-ilsr - 0 views

  • rid electricity prices are not fixed, but changing.  Over the past decade, electricity prices have risen, on average across the United States, 3 percent per year.  The solar electricity price is locked in once the panels are operating. Some utilities have time-of-use rates that charge more for electricity during peak times (hot, summer afternoons) that rise as high as 30 cents per kWh.  Solar competes favorably against these rates. There are federal, state and utility incentives for solar that reduce the cost.  The 30% federal tax credit, for example, is in statute until the end of 2016.
  • The first step is translating solar prices into electricity prices.  Installed costs for solar have dropped dramatically, from $8 to $10 per Watt just a few years ago to as low as $3.50 per Watt for utility-scale systems as just over $4 per Watt for residential systems.  But electricity isn't sold in Watts, but in kilowatt-hours (kWh).  So, solar installed at $3.50 per Watt in Minneapolis, MN, will produce electricity for about 23 cents per kWh.  In sunny Los Angeles, the same solar PV array would produce power at 19 cents per kWh, because the more abundant and direct sunshine would make 20% more solar electricity over the same time period.
  • by the time their solar PV systems are halfway to their expected life of 25 years, 45 million Americans (roughly 1 in 6) would have cheaper electricity from solar if they installed right now at $3.50 per Watt.
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    The first step is translating solar prices into electricity prices.  Installed costs for solar have dropped dramatically, from $8 to $10 per Watt just a few years ago to as low as $3.50 per Watt for utility-scale systems as just over $4 per Watt for residential systems.  But electricity isn't sold in Watts, but in kilowatt-hours (kWh).  So, solar installed at $3.50 per Watt in Minneapolis, MN, will produce electricity for about 23 cents per kWh.  In sunny Los Angeles, the same solar PV array would produce power at 19 cents per kWh, because the more abundant and direct sunshine would make 20% more solar electricity over the same time period.
Jörgen Ekelund

Energy Storage and PV Tied to EV Charging - ElectroIQ - 0 views

  • "Putting storage into the charger rather than using the vehicle for power to the home will preserve the life of the EV’s batteries and can capture cheaper energy even if the vehicle is not plugged in,"
  • These batteries could also be integration with a photovoltaics/solar power installation
  • prototype integrated solar-assisted electric vehicle charging station to be erected at the Electric Power Research Institute (EPRI)
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  • “Solar-assisted electric vehicle charging stations are a crucial step toward the development of a regional system of clean fuel for electric vehicles,”
  • These 220V (15A) charging stations can be installed in a home's garage and help reduce the charging time of Mitsubishi's lithium-ion battery-powered vehicle by 50% versus a standard 110V electrical outlet
  • Level 3” DC charging stations use greater amounts of power and current to bypass the vehicle’s on-board charger with a fast and reliable DC charge in minutes instead of hours
  • “Level 2” AC charging docks and stations deliver AC power reliably and safely to the electric vehicle
  • power up the battery in 3 to 8 hours –
  • usually at home when the driver is sleeping.
  • “Level 1” AC charging uses a standard 120V outlet and takes 11 to 20 hours to charge a depleted
  • level 3 DC charging is suited for public charging infrastructure; charging large vehicles with big batteries such as buses; and commercial or service fleets with very little recharging downtim
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    Muy interesante, tenemos que tener al menos Level 1 y 2
Jörgen Ekelund

Quantifying The U.S. Solar PV Potential Using Retail Electricity Prices (And A Primer O... - 2 views

    • Jörgen Ekelund
       
      Critical to bringing U.S. residents on-line are large increasesin the availability of financing.  Solar leasing programs/companies like SolarCity are poised to expand rapidly
    • Jörgen Ekelund
       
      This analysis was completed by combining local-level electricity prices by segmentfrom the U.S. Energy Information Association (EIA) with state-level irradiation data from NREL.  The data were analyzed segment by segment, state by state, to determine the points at which the NPV of a solar PV investment becomes positive relative to the NPV of electricity purchases from the utility.  This market-by-market approach is necessary because of the wide distribution of U.S. electricity prices ($0.01-$1.00/kWh) and the wide distribution of solar irradiation (1,200-2,400 kWh/m2).
    • Jörgen Ekelund
       
      Counter to conventional wisdom, solar PV will increasingly come on-line in a distributed manner-i.e., on buildings and residences-Not supplied by utilities.  This is because the price of electricity at retail is 2-3x higher than utility generation cost.  As solar installation costs decrease, the cost of solar electricity will become competitive with retail price points first.  Below $4 per watt, many businesses and residents will save money by installing solar PV on their properties.  Over time, U.S. utilities will face a meaningful erosion of demand.
Jörgen Ekelund

In Germany and Elsewhere, Energy Storage is Key to Unlocking Renewable Energy | Renewab... - 0 views

  • Scientists at the Fraunhofer Institute in Freiburg are working on longer-term projects, from bendable solar panels to high-speed charging stations for electric cars that might one day act as a battery for the national grid.
  • “The energy overhaul is an epic project that will span many decades,”
  • The question isn’t if it’ll be deployed, but when.”
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  • Failure to deliver “would have major consequences for prosperity, economic growth and employment,”
  • unlike nuclear energy, solar panels and wind turbines leave consumers without power when the wind doesn’t blow or the sun doesn’t shine. That makes storing energy key to their use.
  • “Electricity storage really is the holy grail for the German energy transformation,”
  • That’s where Specht’s box in Stuttgart comes in. It uses electricity and carbon dioxide, a greenhouse gas blamed for global warming, to turn water into methane that can be stored in underground caverns for days or weeks, then burned in gas plants when needed.
  • udi is building a 6 megawatt industrial-sized plant based on the technology that’s due to start operating next year
  • The average German household may have to pay 175 euros a year next year to subsidize renewables, a rise of 40 percent,
  • Germany aims to raise its share of power production from renewables to at least 35 percent by the end of this decade from 25 percent now.
  • can be an example to other nations by showing them that you can succeed,
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    "Scientists at the Fraunhofer Institute in Freiburg are working on longer-term projects, from bendable solar panels to high-speed charging stations for electric cars that might one day act as a battery for the national grid."
Jörgen Ekelund

Electric vehicle battery cost reductions won't pay off next year - ElectroIQ - 0 views

  • According to data from Pike Research’s annual Electric Vehicle Consumer Survey, the optimal price for a plug-in electric vehicle (PEV) to engage consumers is $23,750, but a quick pricing check reveals distance between want and reality: 2012 Toyota Prius PHEV ($32,000), the Honda Fit BEV ($36,625), and the Ford Focus EV ($39,995) (before federal incentives). These relatively high selling prices will constrain the market for PEVs in 2012. Nevertheless, the global market for plug-in electric vehicles will grow to more than a quarter million vehicles in 2012.
  • Car-sharing services will expand the market for EVs and hybrids. Battery production will outstrip vehicle production. The Asia-Pacific region will become the early leader in vehicle-to-grid (V2G) systems. Third-party EV charging companies will dominate public charging sales. Employers will begin to purchase EV chargers in large numbers.  EVs will begin to function as home appliances. 
Jörgen Ekelund

Grid Parity for Solar PV with Balance of System Cost Reductions | john-farrell-ilsr - 0 views

  • Cutting non-module solar PV costs with best design practices could make solar PV cost less than grid electricity for more than 25 percent of Americans.
  • how to reduce balance of system costs by 58 percent in five years.
  • They found that the balance of system savings (and induced reduction in module costs) could lower the price of solar PV electricity from 22 cents per kWh to 8 cents per kWh. 
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  • To put that in context, I recently examined distributed solar's cost compared to grid electricity prices, concluding that "solar PV at $5 per Watt (with solely the federal tax credit) could not match average grid electricity prices in any of the sixteen twenty largest metropolitan areas in the United States."
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    Juanjo, muy interesane, leelo. Tenemos siempre tratar de hablar de LCOE
Jörgen Ekelund

Discovery May Allow Doubling of Solar Panel Efficiency! | Solar Thermal Magazine - 0 views

  • University of Texas at Austin stating that one of its chemists has discovered a way that may allow solar panel efficiency to be doubled, possibly reaching as high as 66%
  • “At current, approximately 31% insolation-to-electricity efficiency of a silicon solar cell is considered to be the maximum in the solar industry,”
  • “Being able to cheaply double the efficiency and even being able to reach 66% efficiency could potentially erase the barriers of competing with cheap fossil fuels very quickly.”
Jörgen Ekelund

Busting 4 Myths About Solar PV vs. Concentrating Solar Power | john-farrell-ilsr - 0 views

  • A concentrating solar power plant has a capital cost of $5.50 per watt without storage, and $7.75 per watt with six hours of thermal storage. The levelized cost of electricity from a Mohave Desert concentrating solar power plant (without storage) serving Southern California load is $250 per megawatt-hour (MWh), or 25 cents per kilowatt-hour (kWh).  With the federal investment tax credit, the price is 17.5 cents.* In contrast, a distributed solar PV plant has a capital cost of $3.80 per watt without storage and can add battery storage for $0.50 per watt. Thus, a PV plant with six hours of storage would cost $6.80 per watt. Because a distributed solar PV plant also has no need for long-distance transmission, the levelized cost of solar PV (without storage) in Southern California is $136 per MWh, or 13.6 cents per kWh (9.5 cents with the federal tax credit). The levelized cost for concentrating solar and solar PV with storage (and the federal tax credit) are 23 and 16.8 cents per kWh, respectively.
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    Bueno saber: A concentrating solar power plant has a capital cost of $5.50 per watt without storage, and $7.75 per watt with six hours of thermal storage. The levelized cost of electricity from a Mohave Desert concentrating solar power plant (without storage) serving Southern California load is $250 per megawatt-hour (MWh), or 25 cents per kilowatt-hour (kWh).  With the federal investment tax credit, the price is 17.5 cents.* In contrast, a distributed solar PV plant has a capital cost of $3.80 per watt without storage and can add battery storage for $0.50 per watt. Thus, a PV plant with six hours of storage would cost $6.80 per watt. Because a distributed solar PV plant also has no need for long-distance transmission, the levelized cost of solar PV (without storage) in Southern California is $136 per MWh, or 13.6 cents per kWh (9.5 cents with the federal tax credit). The levelized cost for concentrating solar and solar PV with storage (and the federal tax credit) are 23 and 16.8 cents per kWh, respectively.
Jörgen Ekelund

PV to become Australia's cheapest electricity source by 2050, study says - PV-Tech - 0 views

  • Using New South Wales as a baseline, the study estimates that the LCOE of non-tracking PV will fall by 48% from AUD$224 per MWh in 2012 to AUD$116 in 2030, and by 62% to AUD$86 in 2050.
    • Jörgen Ekelund
       
      El USD y el AUD se cotizan mas o menos igual.
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    "PV to become Australia's cheapest electricity source by 2050, study says"
Jörgen Ekelund

SolarCity Announces Expansion in New York, Files for $200 Million IPO | Renewable Energ... - 0 views

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    "Rather than requiring customers to pay the high costs associated with the purchase and installation of solar PV panels for their homes, SolarCity offers the option for residential customers to instead lease the electricity-generating technology for an affordable monthly fee"
Jörgen Ekelund

World's First Five-star Hotel to Implement Solar Cogeneration for Dual Heat and Power -... - 0 views

  • “Currently, energy costs account for approximately 10 to 15 percent of all hotel expenses,”
  • By implementing solar cogeneration, we will be able to reduce our energy expenses and help the environment by reducing our consumption of traditional energy sources and our greenhouse gas emissions.”
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    Cogenra Solar, a provider of distributed solar cogeneration solutions that deliver renewable cooling, heat and electricity, today announced a roof-top installation at the Hotel Real InterContinental in San Salvador, El Salvador
Jörgen Ekelund

Which are the most profitable regions for solar in the United States? - PV-Tech - 0 views

  • An irradiation map tells you only the amount of input solar energy.
  • What is needed is not an irradiation map, but a solar PV economic map; a dynamic map that combines the relevant variables, keeps them current and accurately calculates consumer ROI by region – today and in the future
  • Solar PV cost is the discounted value of all generation costs, divided by the discounted value of all electricity generated over the operating life of the array. This expression is captured in the Levelized Cost of Energy (LCOE) equation
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  • Let’s make this point more clear through two hypothetical examples: suppose irradiation in the United States were uniform at 1,800 kWh/m2 and the total installed cost of a distributed solar array were US$2.00/W (one goal of DOE Sunshot Program). Using the LCOE equation, this corresponds to a solar PV electricity cost of approximately US$0.15/kWh
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    "An irradiation map tells you only the amount of input solar energy"
Jörgen Ekelund

PV Still Facing a Bumpy Ride: Working in a Low-incentive World | Renewable Energy World... - 0 views

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    "Instead of selling solar as cheap and ever cheaper along with the moving target and nebulously defined goal of grid parity, the high quality of solar electricity should be the primary attribute that marketing professionals use when developing their strategies."
Jörgen Ekelund

» Electric Vehicle Charging Equipment Pike Research - 0 views

  • By 2017, Pike Research forecasts that more than 1.5 million locations to charge vehicles will be available in the United States, with a total of nearly 7.7 million locations worldwide.
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    The very important EV market!
Jörgen Ekelund

Novel Renewable Energy Technologies Generates Electricity on See-Through Glass Coatings... - 0 views

  • Dr. Hammond brings extensive experience in all areas of OPV, the underlying SolarWindow™ technology, including: the design and synthesis of small molecule and polymeric donor materials, the development of new solution-processed contact materials, the fabrication of OPV devices, large-area device fabrication using various coating methods, and the development of solution-processed flexible and transparent moisture barriers.
  • New Energy Technologies
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    Me hace pensar en Konarka...
Jörgen Ekelund

Solar Power May Already Rival Coal, Prompting Installation Surge - Bloomberg - 0 views

  • Solar panel installations may surge in the next two years as the cost of generating electricity from the sun rivals coal-fueled plants, industry executives and analysts said.
  • Large photovoltaic projects will cost $1.45 a watt to build by 2020, half the current price, Bloomberg New Energy Finance estimated today.
  • nstallation of solar PV systems will almost double to 32.6 gigawatts by 2013 from 18.6 gigawatts last year, New Energy Finance estimates.
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  • Electricity from coal costs about 7 cents a kilowatt hour compared with 6 cents for natural gas and 22.3 cents for solar photovoltaic energy in the final quarter of last year, according to New Energy Finance estimates.
  • System costs have declined 5 percent to 8 percent (a year), and we will continue to see that,” SolarCity Inc. CEO Lyndon Rive said in an interview.
Jörgen Ekelund

Could the U.S. Cut Household Electricity Use by Two-Thirds? | john-farrell-ilsr - 0 views

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    Hmmm, casi 1000kW por mes en EEUU y solo 260kW en Alemania, me pregunto cuanto es aqui? Lee los comentarios
Jörgen Ekelund

Educational Solar Kiosks being Installed at 30 Arizona Schools - Solar Thermal Magazine... - 0 views

  • “Not only is APS producing clean energy for the state through this program, they will provide cutting-edge solar education to students from ages five to 18,” said Robert Schaefer, CEO of AlsoEnergy. “The utility also will receive information through our energy management services that can compare operation between sites and detect underperforming components, providing real-time information to help them better serve their customers.”
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    ""Adding the educational kiosks has taken this program to another level. The students will learn what solar panels can produce at different times of the day and see how much electricity their school is consuming. We're helping to power classrooms for the future leaders of our communities.""
Jörgen Ekelund

Annual Renewable Distributed Energy Generation Installations Will Nearly Triple by 2017... - 0 views

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    " Distributed renewable installations today represent far less than one percent of total worldwide electricity generating capacity"
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