The average feed in tariff or grid sell back price of 7 INR/unit is assumed for analysis generated through solar PV and wind turbine system [19, 20].
Grid sell-back, at 50% retail price, significantly improves the economics of a base load fuel cell, but has little impact for a dispatchable system.
Ms. Thatcher began to doubt her entire venture until she had her first Off the Grid experience, selling at a popular Thursday market.
Besides the appeal of environmentalism, another draw is that the turbine is fitted by Con Edison with a bidirectional meter so that when the turbine is generating more power than the systems can use, it returns that energy to the local grid, essentially selling power back to the utility.
Another important motive is to save money by buying less electricity from the grid or selling own produced electricity [4, 6, 7, 10, 22, 23, 25, 26].
The prices of buying power (to pump water when there is surplus power on the grid) and selling power (when stored water is released to generate hydropower), and the amount of power to be bought and sold, must be known to set an upper limit to the construction, mitigation and operation costs.
The results show that all these optimal designs produce cheap liquid fuels which are lower than $2.2/GGE (gallon of gasoline equivalent), while the LCS design can reduce breakeven oil price (BEOP) to 1.87 $/GGE under current grid electricity selling price (60$/MWh) and life cycle carbon tax (20 $/ton CO2-eq).
You could be part of a distributed power system by using the grid backwards, selling power back to your Utility Company.
(7 where u grid,b (i =1 indicates buying from the grid at time i; u grid,s (i =1 indicates selling to the grid at time i; buying and selling cannot occur at the same time, which means u grid,b (i) and u grid,s (i) cannot be 1 at the same time; (bar{P}_{grid,b}) and (bar{P}_{grid,s}) are the maximum power exchange levels when buying and selling.
The SOFC operates at full load, producing electric energy that is in part self-consumed for powering building lights and equipments, and in part is used for operating the system itself; the electric energy in excess is eventually released to the grid and sold to the public Company that operates the grid itself.
