Energy efficiency is a cost-effective, low-impact way of combatting climate pollution on a large scale, so accelerating its adoption is crucial for reaching net zero emissions and combatting climate change.
Energy efficient buildings, appliances and public transit can save families hundreds of dollars each year in energy bills – but knowing where to begin can be challenging.
1. Reduce Energy Use
Energy efficiency is the most cost-effective method for reducing energy waste, from greenhouse gas emissions and fossil fuel use to electricity and natural gas bills, saving money and helping lower implementation costs for renewable energies.
Energy efficiency opportunities exist across buildings, industry, transportation and power generation sectors – from buildings to industry and transportation, as well as power generation itself. Mandatory standards and labels already cover around 90% of energy use across these industries – leaving much of it still uncovered for further investigation.
Purchase and usage of more efficient appliances, lighting and consumer electronics is one way to cut energy usage. Switching fluorescent tubes for LED bulbs uses 30%-80% less energy; installing timers or motion sensors on office lights helps avoid “vampire loads.” Many utilities provide incentives or participation programs which encourage electricity users to consume during off-peak hours (demand-side management; DSM); these forms part of an overall energy efficiency framework which could include renewables energy storage solutions or even energy storage technologies such as batteries.
2. Save Money
Many energy efficiency strategies that reduce carbon emissions can also save consumers and businesses money. Installing LED lightbulbs that use less electricity, clearing away furniture from radiators and using timers to switch heating on when necessary all can make significant savings in the home environment.
Other cost-cutting tips include insulate walls and upgrading older appliances, choosing energy-efficient electric water heaters, taking advantage of time-based energy rates, unplugging devices (like DVD players or coffee makers) that appear off but still draw power in standby mode, running laundry or dishwashers during off-peak hours etc.
When purchasing new appliances, look out for appliances labelled ENERGY STAR; these have been independently certified to deliver energy savings that could reduce utility bills over their lifespan. Though ENERGY STAR products may cost slightly more upfront, their long-term cost-savings often justify this additional investment.
3. Reduce Greenhouse Gas Emissions
Nearly half of all greenhouse gas emissions come from energy production and transport; including production, transport, heating and cooling buildings. To lower your carbon footprint, look for appliances certified as ENERGY STAR compliant or purchase secondhand or recycled items – or consider renewable energy options like wind or solar.
Most emissions come from burning fossil fuels for power and heat generation, though indirect emissions come from manufacturing, mining, agriculture and waste management processes as well. Energy efficient technologies such as LED lighting or home insulation systems can reduce both direct and indirect emissions.
At the COP28 summit in 2024, governments made a pledge to double global energy efficiency by 2030 – recognising it as an essential building block of clean energy transition. Efficiency progress is projected to deliver two-thirds of oil demand reduction and more than half of natural gas consumption reduction required under IEA’s scenario for reaching net zero energy sector emissions by 2050, as well as 27 times more carbon emission avoidance than renewables do.
4. Promote a Sustainable Lifestyle
As our homes and workplaces become more energy efficient, the less we rely on large power plants for electricity, thus decreasing fossil fuel usage and decreasing our carbon footprint.
Many efficiency measures are affordable and have short payback periods; many can even be installed free-of-cost! Energy efficiency also lowers household energy cost burdens – particularly those from lower-income families that devote disproportionately high percentages of their incomes towards energy expenses.
NRDC helps make it easy for individuals and communities to go green and save money, by supporting state and federal energy efficiency standards, working with cities to cut energy waste in larger buildings, and supporting utility programs that encourage efficiency.
Reduced use of fossil fuels not only saves us money but also lives by decreasing air pollution levels. This is particularly crucial in lower-income communities where residents face greater health risks from toxic emissions than elsewhere, and urban settings where improved air quality helps treat asthma, lung disease and prevent heart attacks.