Task 8 - Producing Micro Renewable Energy

What are the two types of micro renewable connections?

• On-grid and Off-grid

• Parallel and Series

• Direct and Alternating

• Primary and Secondary

What are the key components of an off-grid PV system?

• PV modules, A PV module mounting system, D.C cabling, A charge controller, A deep-discharge battery bank, An inverter

• PV modules, A PV module mounting system, A.C cabling, A charge controller, A deep-discharge battery bank, An inverter

• PV modules, A PV module mounting system, D.C cabling, A charge controller, A shallow-discharge battery bank, An inverter

• PV modules, A PV module mounting system, D.C cabling, A charge controller, A deep-discharge battery bank, A transformer

What does the term Azimuth mean?

• The angle that the panel direction diverges from facing due south.

• The speed of the wind at a particular location.

• The height at which a wind turbine is mounted.

• The amount of energy produced by a wind turbine.

What are the two types of micro-wind turbines suitable for domestic installation use?

• Pole Mounted, free-standing wind turbines and Building-mounted wind turbines.

• Offshore wind turbines and Onshore wind turbines.

• Horizontal-axis wind turbines and Vertical-axis wind turbines.

• Large-scale wind turbines and Small-scale wind turbines.

What does the term ‘Wild’ mean in terms of output?

• Wild alternating current (a.c) that varies in both voltage and frequency.

• A constant direct current (d.c) output.

• A stable alternating current (a.c) output.

• A low voltage direct current (d.c) output.

What are the four location and building requirements for micro wind turbines?

• Average wind speed on site, any obstructions and turbulence, height at which the turbine can be mounted, turbine noise, vibration, flicker.

• Proximity to water, average temperature, soil type, building material.

• Sunlight exposure, average rainfall, soil pH, building height.

• Proximity to power lines, average humidity, soil moisture, building age.

What is the minimum wind speed needed to generate electricity?

• 5 m/s

• 10 m/s

• 15 m/s

• 20 m/s

What are the advantages of micro wind turbines?

• They can be very effective on a suitable site, there are no carbon dioxide emissions, they produce most energy in winter, a feed-in tariff is available, effective where mains electricity does not exist.

• They are very expensive to install, they require constant maintenance, they produce most energy in summer, no feed-in tariff is available, ineffective where mains electricity exists.

• They are only effective in urban areas, they emit carbon dioxide, they produce least energy in winter, no feed-in tariff is available, effective where mains electricity exists.

• They are ineffective on a suitable site, they emit carbon dioxide, they produce most energy in summer, a feed-in tariff is available, ineffective where mains electricity does not exist.

What are the disadvantages of micro wind turbines?

• Low initial costs

• High performance regardless of wind availability

• Initial costs are high

• No noise, vibration, or flicker

What are the six components of the water course construction?

• Intake, canal, forebay, penstock, powerhouse, tailrace

• Intake, canal, forebay, penstock, generator, tailrace

• Intake, canal, reservoir, penstock, powerhouse, tailrace

• Intake, canal, forebay, penstock, powerhouse, outlet