Home Energy Efficiency Guide
Practical Solutions from the Experts at Gilleran Energy Management, Inc.
In today’s world, energy sustainability is no longer a luxury—it’s a necessity. For California homeowners, improving energy efficiency can lead to lower utility bills, greater comfort, and a smaller environmental footprint. Whether you’re planning small upgrades or considering major home improvements, energy-efficient strategies should play a central role.
At Gilleran Energy Management, Inc. (GEM), we provide expert guidance on energy code compliance and sustainable building strategies. While we support major commercial and residential developments across the state, we also recognize the growing need for reliable, practical advice for individual homeowners.
That’s why we’ve created this Home Energy Efficiency Guide—a go-to resource for homeowners looking to make smarter, more sustainable choices. Whether you’re looking for quick wins or preparing for larger upgrades, this guide can help you take meaningful steps toward a more energy-efficient home.
Simple, Inexpensive Solutions (Low-Cost, Quick Wins)
Energy sustainability doesn’t have to begin with a big investment. Many cost-saving opportunities are accessible right now, with little to no professional assistance required.
1. Switch to LED Bulbs
LED lights use up to 80% less energy than incandescent bulbs and last significantly longer. It’s one of the simplest ways to start saving right away.
2. Unplug Energy Vampires
Electronics like chargers, TVs, and coffee makers often draw energy even when not in use. Unplug them or use a smart power strip to eliminate standby power consumption.
3. Adjust Thermostat Settings
Turn your thermostat down a few degrees in winter and up a few degrees in summer. This small change can reduce HVAC costs by 5–15%.
4. Use Smart Power Strips
These devices automatically cut power to electronics when they’re not in use—saving energy without the hassle of manual unplugging.
5. Seal Air Leaks
Use weather stripping or caulking around windows, doors, and baseboards to keep indoor temperatures consistent and reduce energy waste.
6. Optimize Curtains & Blinds
During hot days, close curtains to block heat. In colder months, open them during the day to let in natural warmth. These small changes can make a big difference in comfort and efficiency.
Moderate DIY Improvements (More Effort, Higher Savings)
These projects may require a bit more time or money upfront but can dramatically increase your home’s energy performance and reduce long-term costs.
1. Install a Smart Thermostat
These devices learn your schedule and adjust heating and cooling accordingly. Smart thermostats can reduce energy use by 10–20%.
2. Insulate Your Attic and Walls
Proper insulation keeps conditioned air where it belongs. Focus on attics, crawlspaces, and exterior walls to reduce heating and cooling loads.
3. Upgrade to Energy-Efficient Appliances
When it’s time to replace appliances, choose ENERGY STAR® models that are designed for maximum energy efficiency and performance.
4. Improve Water Efficiency
Install low-flow showerheads and faucets, insulate your water heater, and fix leaks to conserve water and reduce energy use associated with heating.
5. Clean HVAC Filters Regularly
Dirty filters make your system work harder and consume more energy. Replace or clean filters every 1–3 months for optimal efficiency.
Professional Intervention Options (Larger Investment, Maximum Efficiency)
When you’re ready to make a long-term commitment to energy sustainability, these upgrades deliver the greatest impact—and often require expert guidance.
1. Schedule a Home Energy Audit
A certified energy consultant can evaluate your home’s performance and identify where improvements are most needed.
At GEM, our team conducts thorough energy assessments and provides customized roadmaps to help homeowners reduce energy use and meet California’s Title 24 compliance requirements when needed.
2. Install Solar Panels
With California’s abundant sunshine, solar energy is a smart investment. Incentives, rebates, and long-term savings make it a powerful addition to your home’s energy strategy.
3. Upgrade Your HVAC System
If your system is more than 10–15 years old, consider upgrading to a high-efficiency heat pump or furnace. Duct sealing and zoning controls can further increase savings and comfort.
4. Replace Windows
Older, single-pane windows are a major source of energy loss. Upgrading to double- or triple-pane windows with low-E coatings can improve insulation and reduce heating and cooling needs.
5. Whole-Home Insulation & Air Sealing
A comprehensive insulation and air sealing strategy helps your home retain warmth in winter and stay cool in summer—cutting energy waste year-round.
6. Add Battery Storage for Solar Energy
Battery systems store excess solar energy for use at night or during power outages, maximizing your energy independence and system efficiency.
The LEED Advantage for Residential Projects
LEED for Homes, part of the U.S. Green Building Council’s sustainability certification program, is designed for both single-family and multi-family residences. Even if you’re not pursuing full certification, the framework offers valuable best practices for creating healthier, more efficient homes.
Benefits of LEED-Certified Homes:
At GEM, we support homeowners and design teams through every step of the process. Our consultants include Certified Energy Analysts (CEAs) with deep knowledge of energy modeling, documentation, and sustainable design strategy. If you’re interested in a LEED-based approach, we’re here to help you understand what’s possible and practical.
Why Choose Gilleran Energy Management?
We understand you have choices—but here’s what sets us apart from general energy consultants or DIY calculators:
We don’t chase projects, and we don’t cut costs at the expense of quality. Our focus is helping people and homes thrive through efficient, well-planned strategies.
Your First Step Toward Energy Sustainability
If you’re a homeowner looking to make smarter upgrades—or just trying to understand what steps to take next—Gilleran Energy Management, Inc. is here to help. From expert home energy audits to helping you navigate California’s evolving energy code requirements, we offer clarity, confidence, and practical solutions to make your home more efficient and comfortable.
If you have questions or are ready to get started, we’re here! Contact us today to schedule a consultation and discover how GEM can help you build a better-performing home with peace of mind.