Tag Archives: Cost
Using Levelized Cost of Energy as a tool
Using Levelized Cost of Energy as a tool(Abhishek Uppal) Levelized Cost of Energy (LCOE) is the methodology used to understand the commercial breakeven of alternative energy technologies in the electricity market. There are two ways to use the tool: at an industry level, and at an individual project level, varying assumptions to assess project economics. While the idea of LCOE is attractive at an industry level, adapting the framework to work as a project-level investor spreadsheet is ultimately more useful. Calculating LCOELCOE considers the total electrical output generated by a technology over its lifetime, divided between the total cost of investment, the interest rate, cash flow during construction, and any additional operational and maintenance costs, all in present value terms. Typically, the LCOE result is given in a currency per kilowatt (or megawatt)-hour unit, such as $/kWh or ?/MWh. Depending on which of the breakeven points is under consideration, carbon pricing and incentives and subsidies can be switched on or off in an LCOE model. Economic InputsNot all variables are taken into account when developing an LCOE model; often, varying boundaries, assumptions or scenarios are established to compare the LCOEs of different technologies under different scenarios. Different fuel prices, tax incentives and carbon prices may be key shifting factors. The standard, industry-level LCOE uses a common discount rate, but for this methodology to be used in project evaluation, the discount rate would need to be varied. LCOE at an industry levelEach energy-generating technology has different underlying economic characteristics. It can be difficult to make a direct comparison between different technologies by only considering one or a few of those characteristics. This is a critical issue when performing a cross-industry comparison of conventional and alternative sources of energy, as their economic drivers are quite different. For example, capital costs for renewable installations tend to be higher than those for fossil fuel power plants, while renewables do not have any fuel expenditures, meaning that their operating costs are often lower than those of their fossil fuel counterparts. The only fair way to compare power generation methods at an industry-level, then, is through a methodology that takes both capital and operating costs into account, and translates the two into a common currency. The Levelized Cost of Energy (LCOE) model is an effective way to determine a consistent comparison that accounts for fixed and variable drivers behind each technology. LCOE? The discount rate question and project-level analysisNormally, the LCOE model uses a common discount rate when comparing different technologies and energy sources. This has some merit, as it permits analysts to understand the breakeven point at an industry level. However, this does not fully satisfy the needs of the investor. The discount rate chosen, and other project-level inputs, such as specific regional factors in the electricity markets, will have an important influence on project economics. Before discussing each of the factors that need to be varied in developing a project-level analysis, we introduce the most important characteristics of electricity markets. Developing an “investor’s spreadsheet” for individual projects from the LCOE model requires a number of modifications. While all of the inputs into the investor’s spreadsheet will need to be project-specific, some of the inputs will be more important than others: The most important factors for project evaluation will be tailoring the discount rate to the individual project under consideration, as well as modeling how the project fits into the local energy market. This is because these factors will have the greatest impact on the economic viability of projects across the board;Other factors that will be important to investors include performing scenario analysis on fuel price, carbon price and incentives and subsidies in order to determine the exposure of the investment target to these factors, and develop a view of the risk/return profile of the target. By adapting the LCOE model to take these factors into account, investment decisions and project evaluation become considerably more sophisticated. In the next section of this chapter, we look at how the investor’s spreadsheet can be used to develop a more comprehensive view of risk/return. Abhishek Uppal college graduate from Cornell University.
Geothermal Heat Pump – a green and cost effective technology
The word geothermal originates from two Greek words “geo” which mean earth and “therme” which heat. Therefore it is a renewable source of energy emanating from the ground. A Geothermal heat pump works on the principal that in winters, it moves the heat from the earth into the home whilst in summers the apparatus discharges the heat of your home into the ground. Heat flows from higher temperatures substances to lower temperature substances and the earth traps as much as half the energy of the sun received by it. A ground source heat pump utilizes this energy stored in the earth or water bodies to provide heating. Ground source heat pumps use the earth as a source of energy in winters and as a heat sink in summers. A geothermal heat pump transfers the heat from the water to the air and thus it functions as an air conditioner. As it relies on renewable source of energy a geothermal heat pump or ground source heat pump is much for efficient in heating and cooling the spaces and water than an electric heater is. This enables you to cut utilities bills by as much as 70%. Using the relatively constant temperature of the ground several feet below the earth’s surface for heating and cooling, geothermal heat pumps are appropriate both for retrofit and new houses. A large number of geothermal companies and geothermal pump contractors are there and you can easily get a geothermal heap pump installed in your home. The basic components of a ground source heat pump include a loop field, a liquid pump pack and a water source heat pump. The loop field can be placed on your home, enabling it to discharge heat into the ground or move the earth’s heat into your home. The size of the loop depends upon the size of the building. The liquid pump pack is used to send the water whilst the water source heat pump is more like a boiler. Geothermal heat pumps are used both for residential and commercial purposes and therefore there are three types of ground source heat pumps available. Fore more info please visit here – http://www.mygreencomfort.com
How Much Does Wind Power And Solar Power Cost?
In Australia how much would it cost to have a farm of wind power and solar power. If possible pls tell the cost of each thing individually. Also a sources where the information is found
How Efficient Is Wind Power? Does It Cost More Than Burning Coal?
Is it economically efficient to have wind power as your source of electricity?
How Much Does Solar Power Cost
The more you read and learn about solar power, the more you will understand just how much does solar power cost. Solar power is a free natural source of energy from up above, it?s a gift of God, we call it the sun and it is for everyone to use. When solar energy hits the earth it brings us heat, warmth and a sense of well being, it spreads over the earth’s surface evenly. Just like we capture the sun’s rays into our car in the summer when the windows are closed, and we open the windows to let the heat out, solar panels are doing a similar job capturing the rays of the sun and converting it into electrical charges useable to heat our homes, power our appliances, heat your water, run your air conditioner, TV, DVD and a lot more. Unlike gas or oil heaters that you continue to pay monthly in order to have power or gas heat in your home. Solar power does provide heating, cooling and ventilation, free of charges. How much does solar power cost in a long run, nothing and you may not know this but the electrical companies will pay you money for having your meter run on the opposite direction. Greenhouses operate with the same principle having glass or clear plastic all around it attracting and capturing the sun and not allow it to escape causing the greenhouse to stay very warm for the plants to grow effectively. A home solar power system can cost you around $3,500.00 and more depending on many things, like the size of your home, the amount of appliances used, the size of your family, the amount of electronic components used and much more. There are some very good step by step guides with videos out there to help you build your own solar power system even if you know nothing about solar power. I have come across one package on the internet that claims that you can build your own home solar power system for about $200.00, now that is amazing and hard to believe. Think of all the money you will be saving and all the nice things you will be able to afford for your home with those savings and much more. You shouldn’t ask yourself how much does solar power cost but rather ask yourself how much money will I save ? In time, solar energy helps to heat your home naturally without worrying about the high electrical bill at the end of the month. and without depending on a company to supply it for you. Solar energy is found wherever the sun is shinning. Did you find this article useful? If you did and are interested in learning how to build your own solar power system for very cheap and start generating your own electricity from the sun ,visit : http://bytelan.com/HomemadeSolarCell.htm
The Cost Of Solar Energy
Solar energy is a natural source of energy that comes directly from the sun. When solar energy hits the earth it spreads over the earth’s surface and provides warmth evenly. If you could capture the sun’s rays into a particular area for a long period of time it would provide enough warmth for nighttime or on cloudy days. Learning where to find solar energy can help you to get started today. Solar energy does not cost anything because it comes from the sun. The source that you choose may cost some but in the long run it should be your only expense, unlike gas or oil heaters that you continue to pay for monthly in order to have power or gas heat in your home. Solar power can provide heating, cooling and ventilation. If you want to make your own solar power to capture the energy for heating its easy to do if you can find a solar collector, which is anything that attracts the heat from the sun in a concentrated amount, such as glass or clear plastic. Getting into your car that has sat out in the hot sun all day long can be extremely hot and you have to roll down your windows to cool it off inside. That is because the glass has attracted the sun and the objects in your car, including your seats, have trapped the heat not allowing it to escape. When you roll your windows down you are allowing the heat to escape causing your car to cool down. The same thing is true about greenhouses. The glass or clear plastic can attract the sun and not allow it to escape causing the greenhouse to maintain the heat for the plants to grow effectively. In order to heat your home using solar energy, you need to know the information on a passive and an active home. These two types of solar homes offer the homeowner options to choose from and your cost of heating may be down. Solar energy does not only heat your home but it also heats your water and if you use solar energy lights it can light your home at night. Passive homes do not use any equipment to heat the home. Passive homes use windows that are made to allow the maximum amount of sunlight into your home. The sunlight is controlled by keeping the doors closed in the hottest part of the day not allowing any heat to escape. At night thick curtains may be used on these windows so that the warmth stays inside during the night. This allows the sun to naturally heat your home without any help. Active homes do use equipment to help circulate the heat in the home. Some of the equipment that may be used includes pumps, blowers and an alternative heating source in case the sunlight was not enough during the daytime. In order to heat the home with sunlight these homes use special boxes on the outside that attract the sunrays to it. They are made from a dark colored metal to help attract the sun more. The water or air that is carried in the pipes and ductwork is heated by this glass box that has captured the sunlight. Then the heated water or air is then carried to the rest of the home. In the long run, solar energy helps to heat the home naturally and without depending on a company to supply it for you. Solar energy can be found anywhere the sun is. Atila runs an informative site about solar power and solar energy. There you can find out how does solar power works or what is a residential solar system.
How Much Does Solar Power Cost In Australia ?
I am considering getting solar power for my house. Does anybody have an appox idea how much it would cost to fit my house with this. We just have a typical 3 bedroom house. I have also heard that if your solar panels produce more energy than what you use, it will go back into the power grid, and the energy company will pay you. Is this right? If so any ideas on how much you get back?Thanks
Best Way To Compare The Cost Of Fuels To Green Energy?
Hello, I would like to compare the costs of the energy costs of the fuels we use today (non renewable) to the current cost of green energy (solar wind water etc). What is the best way to do this?
Six Easy Steps to Estimate Cost of a Solar Power System
Solar power energy systems are not inexpensive. That said it’s important to compare them within context of other types of home improvement projects. Home buyers and realtors view a solar photovoltaic or solar hot water heating system as a significant value-added improvement ? similar to adding a deck or remodeling your kitchen. Plus unlike a deck or kitchen remodel, you also gain one-up on your power bills. Here are some foolproof ways to estimate the cost of a solar photovoltaic or solar thermal system and to figure out if a solar energy system makes sense for you. Six Easy Steps To Estimate Cost of a Solar Power System Solar power energy systems are not inexpensive. That said it’s important to compare them within context of other types of home improvement projects. Home buyers and realtors view a solar photovoltaic or solar hot water heating system as a significant value-added improvement ? similar to adding a deck or remodeling your kitchen. Plus unlike a deck or kitchen remodel, you also gain one-up on your power bills. Solar power systems often get an additional financial boost as well: many jurisdictions and utilities across the USA offer attractive financial incentives to drive down the upfront capital costs associated with a solar power system. Here are some foolproof ways to estimate the cost of a solar photovoltaic or solar thermal system and to figure out if a solar energy system makes sense for you. Let’s start with a home photovoltaic (PV) system. Step 1: Estimate your home’s electricity needs To get started, it’s good to have a sense of how much electricity you use. You’ll have a better point for comparison if you find out how many kilowatt hours (kWh) you use per day, per month, per year. Your utility bill should include that information. Of course, the utility bill will also display your costs and many utilities include a graph that displays how your monthly energy use/cost varies throughout the year. That helps you estimate where your highest energy use is and at what time of year. New Home Construction If you are constructing a new home, then you’ll need to estimate your demand based on the type of equipment you plan to install and your home’s square footage. The pross call this “your load”. To figure out your anticipated load, create a table to record the watt use for each appliance. Each appliance ? be it a water heater, electric light, computer, or refrigerator ? should have a nameplate that lists its power rating in watts. Or you can get the information from the manufacturer’s website. Some labels list amperage and voltage only; to obtain watts multiply the two together (amperage x voltage = watts). In another column, record the number of hours each appliance is expected to operate. Then multiple the watts and hours together to estimate watt-hours used per day. Since it’s hard to anticipate all electric loads (it may get tedious scouting out every toothbrush and mobile phone cell charger), you might want to add a multiplier of 1.5 to be safe. Step 2: Anticipate the future In 2005, average residential electricity rates across the USA ranged from about 6 to nearly 16 cents per kilowatt hour depending on where you lived. Average retail and commercial electricity rates have increased roughly 30% since 1999 and the upward trend will likely continue especially as costs for the coal and hydropower used to generate that electricity rise as well. So think about your home electricity needs and present and future cost in relation to one another. Step 3: How much sun do you get? The Florida Solar Energy Center has conducted a study to examine how a 2-kW photovoltaic system would perform if installed on a highly energy efficient home across the continental USA (http://www.fsec.ucf.edu/en/publications/html/FSEC-PF-380-04/). The study accounted for all factors that impact a PV system’s performance such as the temperature effect on the photovoltaic cells, the amount of sun peak hours in various regions, and the efficiency of inverter to convert solar derived energy from DC to AC. As the study implies, solar photovoltaic systems work just about anywhere in the US. Even in the Northeast or in “rainy Seattle”, a pv system can pencil out if designed and installed properly. In New York or New Jersey, a one kilowatt system should produce about 1270 kilowatt hours of electricity per year, in Seattle, a one kilowatt system should produce about 1200 kilowatt hours per year. In the Southwest, of course, those ratios will be much greater. Solar contractors in your area can help determine the best size for your solar photovoltaic system. Step 4: Size your system In general, solar photovoltaic systems sized between 1 to 5 kilowatts are usually sufficient to meet the electricity needs of most homes. One advantage of grid-tied systems is that you can use solar PV to supplement or offset some of your electricity needs; therefore you can size your system to match your budget and always add to the system later if needed. Also as a side note, here’s a rule of thumb to remember to help you estimate the physical space your PV system might need: one square foot yields 10 watts. So in bright sunlight, a square foot of a conventional photovoltaic panel will produce 10 watts of power. A 1000 watt system, for example, may need 100 ? 200 square feet of area, depending on the type of PV module used. Step 5: Know your rebates Many states and local jurisdictions offer rebates, tax credits and other types of incentives to homeowners for installing residential photovoltaic and solar domestic water systems. To view a comprehensive database of the incentives available for renewable energy visit http://www.dsireusa.org. At the Federal Level, you can take advantage of a 30% tax credit (of up to $2,000) for the purchase of a residential solar system at least until December 31, 2008. Step 6: Run the numbers Although the cost for a solar PV system will depend on the size of the system you intend to install, your electricity rate, the amount of kilowatt hours you expect to generate, and the state/local rebates/tax credits that may be available, the formulas for calculating the returns are pretty much the same. For those who appreciate having the formulas, use the ones listed below to do a quick ballpark estimate of how much a solar photovoltaic system might cost you. Retail Price for Solar Photovoltaic System + Building Permits – $2,000 Federal Tax Credit – State or Local Tax Credit or Rebate – Utility Rebate or Other Incentive = Net Investment Kilowatts of electricity generated from PV per year x Kilowatt hours used per year = Annual Kilowatt energy from the PV system Annual Kilowatt energy from the PV system x Current Residential Electricity Rate = Annual $$ Saved Yearly Excess PV Energy Produced x $$ credit applied per watt = Annual Value from Net Metering Of course, a more accurate assessment can be made by a pro. Work with a solar power contractor to size and price the right system for you. As is true with any major purchase, don’t hesitate to ask for several bids from different contractors. Many solar power providers will provide you with a comprehensive estimate. Helpful information to know includes: – Total cost to make the system operational (labor cost for design and installation and equipment costs) – Equipment (Make and Model) – Warranty info – Permit costs, if needed – Tax, where applicable – Federal tax credits – State or local jurisdiction tax credits or rebates – Utility rebates – Expected Renewable Energy Certificates or Net metering credits – Expected operation and maintenance costs – Projected savings Solar Thermal (also called Solar Hot Water) Solar thermal systems capture the sun’s energy to heat water and are one of the most cost-effective renewable energy systems. They are used to heat hot water tanks and/or a heating system. A solar pool heating system is another type of solar thermal system designed specifically to heat a pool or hot tub. Generally it’s worth investigating the economic viability of installing a solar hot water system if you have an electric water heater with utility rates of at least 5 cents per kilowatt hour and have tax credits or rebates available. (It may even be worth changing out a gas-powered water heater if your costs are at least $8/million BTU). The formulas for costing out a solar water heater system are similar to estimating the cost for installing solar PV system. Many solar energy professionals can help you determine what system might work best for you. Heating Your Swimming Pool with Solar Power Although few jurisdictions provide financial incentives for using solar energy to heat a swimming pool or hot tub, in general, using solar power to heat your pool is a “no-brainer” from a return on investment standpoint. The electricity used to heat a pool during the swimming season often amounts to the same amount of energy that homes-without-pools consume over a year. Combining a solar thermal system to generate heat for the pool with a solar thermal pool cover to retain the heat generated can further maximize efficiencies and extend your swimming season. Most installers recommend that a solar collector used to heat a pool is sized at roughly half the square footage of your pool surface area. Solar thermal panels typically last 10 ? 20 years and come with a 10-year warranty. How long it takes to break even on the cost of your solar power pool system depends on where you live. In California or other parts of the Southwest, you’ll break even in 1 to 3 years but places as “far north” as Canada, a solar pool heating system pencils out over a slightly longer period of time. Find more solar panel and solar power information at Cooler Planet.