The main objective of a physical map is to show landforms, bodies of water and other geographical features. Features shown include mountains, deserts and lowlands as well as lakes, rivers and oceans.
Depending on your electricity prices, a 400 watt HID will cost $200 â $400 each year of use, plus the cost of replacement bulbs. LEDs meant to replace 400w HIDs average around 180 watts.
The cost of installing solar power on a mid-sized home is between $30,000 to $40,000 dollars, which covers about 30 panels. If youâre connecting off the grid, expect a higher price tag to cover the cost of extra wiring and materials.Those 30 panels will produce about 8350 kW hours of energy a year or 22 kW hours a day.he cost of installing solar power on a mid-sized home is between $30,000 to $40,000 dollars, which covers about 30 panels. If youâre connecting off the grid, expect a higher price tag to cover the cost of extra wiring and materials. Those 30 panels will produce about 8350 kW hours of energy a year or 22 kW hours a day.