Which among the following are included in the two part tariff?
i. Fixed charges
ii. Running charges
iii. Semi fixed charges

Two-part tariff:
In this type of tariff, the total bill is divided into two parts.
The first one is the fixed charge and the second is the running charge.
The fixed charge is because of the maximum demand and the second charge depends on the energy consumption by the load.

A grid interactive solar system:

A grid-interactive photovoltaic (PV) system uses solar energy to generate renewable power that charges batteries for use during power failures and feeds power into the electricity grid.
Grid-interactive systems are based on their grid-tied and off-grid counterparts.

Case 1: The PV connected to the DC bus was injecting 20 kW of power constituting of 1 kW of loss
Case 2: The same PV is connected to the AC bus constituting to 1.5 kW loss. Find out the change in efficiency from Case 1 to Case 2?

In DC microgrid system,
Efficiency α 1/Pin
For 1 kW loss injecting power is 20 kW
For 1.5 kW loss injecting power will be proportional to 30 kW
So,
Efficiency will be reduced 0.025

Which generation of computers used vacuum tubes?

The air envelope surrounding the earth is called ___

The term NEFT (in banking), is an abbreviation of ___