3.2.2 Energy Efficiency

    Cards (60)

    • What is energy efficiency calculated as?
      Useful energy output / total energy input
    • An incandescent light bulb has an energy efficiency of 5%.
    • LED light bulbs convert 80% of energy into useful light output.

      True
    • Why is regular maintenance important for energy efficiency?
      Keeps equipment running efficiently
    • Order the following light bulb types from least to most energy efficient:
      1️⃣ Incandescent
      2️⃣ Compact Fluorescent (CFL)
      3️⃣ Light Emitting Diode (LED)
    • Match the factor affecting energy efficiency with its description:
      Technology ↔️ Newer technologies are more efficient
      Maintenance ↔️ Regular checks ensure efficiency
      Design ↔️ Well-designed systems optimize energy use
      Operations ↔️ Proper use improves efficiency
    • A car engine has an energy efficiency of 20%.
      True
    • Increasing energy efficiency reduces energy consumption.
    • Why are LED light bulbs more efficient than incandescent bulbs?
      They use newer technology
    • What is the role of proper operations in energy efficiency?
      Maximizes equipment efficiency
    • Arrange the following strategies to improve energy efficiency in order of their focus:
      1️⃣ Upgrading Technology
      2️⃣ Proper Maintenance
      3️⃣ Optimizing Design
      4️⃣ Improving Operations
    • What is one example of optimizing design to improve energy efficiency in buildings?
      Improving insulation
    • Match the benefit of improving energy efficiency with its description:
      Reduced Energy Consumption ↔️ Less energy required for output
      Lower Energy Costs ↔️ Reduced energy bills
      Decreased Environmental Impact ↔️ Fewer greenhouse gas emissions
    • What are four ways organizations and individuals can improve energy efficiency?
      Upgrade technologies, maintain equipment, optimize designs, improve operations
    • Energy efficiency is calculated as the ratio of useful energy output to total energy input.

      True
    • What is the efficiency of an incandescent light bulb?
      5%
    • LED light bulbs are the most energy efficient type of bulb discussed in the material.
      True
    • How do operations affect energy efficiency?
      Proper training and usage
    • Match the energy efficiency strategy with its example.
      Upgrading Technology ↔️ Switching to LED light bulbs
      Proper Maintenance ↔️ Cleaning HVAC systems
      Optimizing Design ↔️ Improving building insulation
    • Ensuring equipment is used and operated correctly is an example of improving operations to maximize energy efficiency.
    • Lower energy costs result directly from reduced energy consumption
    • What are the three key benefits of improving energy efficiency?
      Reduced consumption, lower costs, decreased environmental impact
    • Reduced energy consumption directly translates to lower energy bills and operating expenses.

      True
    • Upfront costs are a significant barrier to improving energy efficiency
    • What is a common barrier to investing in energy efficiency improvements?
      Limited access to financing
    • The Industrial Energy Efficiency Program in Germany improved energy efficiency by 10-15% in participating factories.

      True
    • Match the case study with its strategy:
      City of Seattle Program ↔️ Incentives for HVAC upgrades
      Industrial Program in Germany ↔️ Subsidies for energy management systems
      Rebate Program in California ↔️ Rebates for efficient appliances
    • Improvements in battery storage technology will help optimize energy use in the future.

      True
    • Adopting energy-saving behaviors, such as turning off lights, is a behavioral change that improves energy efficiency.
    • Increasing energy efficiency helps reduce energy consumption, environmental impact, and energy costs.

      True
    • Which type of light bulb has the highest energy efficiency?
      LED
    • Newer technologies often have higher energy efficiencies.
    • Well-designed systems optimize energy use.
      True
    • Proper use of equipment can improve energy efficiency.
    • What is the formula for calculating energy efficiency?
      (Output / Input) × 100%
    • What is the energy efficiency of an LED light bulb in the example provided?
      75%
    • Improved energy efficiency helps lower energy costs and environmental impact.

      True
    • Regular maintenance of equipment prevents energy losses.
    • Addressing factors like technology, maintenance, design, and operations can improve overall energy efficiency.
      True
    • Cleaning and tuning up HVAC systems is an example of proper maintenance.
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