3. The input to a subtransmission system is 87,600,000 kWh annually. On the peak-load day of...
The load data for a primary feeder of a power company for a typical winter day are as follows Street Lighting 1 AM to 6 AM 500 kW 7 AM 300 kW 8 AM to 5 PM 0 kW 6 PM 200 kW 7 PM 300 kW 8 PMto 12 AM 500 kW Residential Load 1 AM to 5 AM 100 kW 6 AM 250 kW 7 AM to 8 AM 400 kW 9 AM 300 kW 10 AM to...
Please answer with clear hand writing. Thanks The annual peak load of the feeder is 3000 kW. Total copper loss at peak load is 300 kW. If the total annual energy supplied to the sending end of the feeder is 9000 MWh, determine the following: a) The annual loss factor for an urban area b) The annual loss factor for a rural area c) The total amount of energy lost due to copper losses per year in part (a) and...
A small company has an aggregate annual demand of 1500 kW and uses 300,000 kWh annually. The original rate schedule was $10.00 per kW and $0.04 per kWh. There are also flat fees totaling $800 per month. Consider a new rate schedule with a slightly lower demand charge and slightly higher consumption charge. The new demand rate is $4.00/kW and the new consumption charge is $0.11/kWh. The flat fees are decreased to $400 per month. What is the change in...
(7 pts) You are installing a 6-kW photovoltalc system that is expected to generate an average of 12,000 kWh per year for 25 years. The system will cost $3.80/Watt to install, then you receive a Federal Residential Renewable Energy Tax Credit for 30% of the installation cost. Your only additional cost over the system life will be to replace the inverter once for $2.500. How much will the solar-generated electricity cost over the life of the system measured in S/kWh?...
Question (2) [10 Marks] Meter Charge: $760/billing period Energy Charge $0.06 for the first 100,000 kwh $0.07 for the next 300,000 kWh $0.08 for all remaining kwh $6.5 per kw demand charge per billing period. Peak demand charges are leveled on customers only during the peak demand period which is from 8:00 AM to 6:00 PM Weekdays A 20% energy charge fee is added to the total energy charges (energy only) if the power factor of the plant is below...
A 1V peak input sine wave is amplified to 9V peak across a 1kW load. The input current of the amplifier is a sine wave of 0.1 mA peak. The amplifier draws 9.5 mA from each of its +/- 10 V DC power supplies. Find h, the efficiency of the amplifier.
Load Duration Curve A gas-fired boiler system is being design for a new building. The system will consist of 3 identical boilers, each with rated output = 200 kW. The anticipated LDC is shown below. 600 500 Heating Load 400 [kW] 300 200 100 0 The planned operating sequence is as follows: Boiler-1 fires first to meet whatever load it can, up to its capacity. When Boiler-1 reaches its capacity, Boiler-2 fires second and operates to meet whatever load it...
An energy burn rate of 6.5x1013kWh/yr. An insolation value of 4 kWh/ m2/day and System conversion efficiency of 15 %. Calculate the land needed for that.
5.4 A large mini-grid is expected to have a daily load of 980 kWh. Assume the energy is consumed at a constant rate throughout the day. Let the fuel cost be US$1.25/liter. Three options are being considered to serve the mini-grid: . five equally loaded 10 kW gen sets; . one 50 kW gen set; one 100 kW gen set. Compute the annual cost associated with each design. Refer to Table 5.2 for the fuel consumption for each gen set....
A 10 kW photovoltaic system generates 15,000 kWh per year. Its initial installed cost is $50,000 and it is financed at 2%. The annual operation and maintenance cost is $200. The system is expected to last 30 years and its replacement cost will be $17,000. There are no incentives. Calculate the cost of energy generated by this system.