If the bulbs in your fixtures aren’t easily replacable, you may need to buy new ones if you want to upgrade to more energy efficient lighting. Ultimately it will be worth the up-front investment either way, since you can save so much both in your energy bill and in replacement costs when you use LEDs or other similarly long-lasting solutions.

While some people like to own a house as soon as possible, it isn’t always practical. If you live in a rental, never fear! With just the right amount of ingenuity, you too can experience the joys of great lighting. Even if you aren’t allowed to tamper with the hardwiring, you can add more temporary fixtures such as battery operated puck lights under your kitchen cabinets or some really trendy plug-in lamps.

Outlets are wired into your home to make it convenient to plug in anything from an appliance to a lamp. However, an electrical fault can occur endangering your home. It’s not a good idea to have 19 different appliances plugged into a single outlet. This can cause a short; not to mention the maze of cords running through the room aren’t safe for family and pets.

Sometimes electrical faults in your system can cause a ceiling light or fan to stop working. After identifying that a bad bulb is not the culprit, you should turn off the power and inspect the light fixture itself. Check the cable and flex connections and make sure the terminal screws are tight. Use a continuity tester to make sure the flex hasn’t gone bad requiring a replacement.

Lights, fans, and other fixtures can also stop working because a residual current device has tripped. You can reset the device but if it trips again it’s best to call in a certified electrician.

If you are still experiencing problems after doing these simple troubleshooting tasks, it’s always best to call in a trained electrician. Outlets or lights that are malfunctioning could be caused by exposed wires somewhere in your electrical system. If your circuit breaker continually trips, it means the current in your home is not cycling as it’s intended. Either way, it’s much safer to have these issues repaired by a good electrician.

As we venture further into the era of climate change, humans are constantly searching for ways to decrease energy consumption and increase efficiency. Unfortunately, there's no silver bullet. Truly reducing our impact on the global climate requires a combination of an increase in renewable power generation, behavioral changes to decrease consumption and increasing the efficiency of our homes and appliances. Even as we strive for improvement, sometimes we fall short. According to a new study from the University of California, Berkeley, for example, a federal Weatherization Assistance Program is not bringing in the expected efficiency benefits.

Looking for the Win-Win

Investments in home efficiency are usually considered win-win scenarios. Reductions in energy consumption lessen the impact on the environment and reduce energy bills at the same time. Many upgrades, like replacing an outdated refrigerator with a new Energy Star-certified model, will eventually pay for themselves in energy savings.

However, not every savings promise comes through. The Berkeley study looked at 30,000 households in Michigan that upgraded their home systems with new insulation, weather stripping, HVAC equipment and more. The federal government paid up to $5,000 per house for the improvements, but the average household only realized $2,400 in savings during the lifespan of their new efficiency features. That's not a great return on investment.

Ancillary Benefits

The households saved 10 to 20 percent on their energy costs, on average, which is only about 40 percent of what they were projected to save. The results are discouraging for consumers who are striving to implement any cost-saving measures they can find. Electricians and home service technicians can help you upgrade your home systems, but the changes will only go so far.

There were other benefits to the weatherization program outside the raw financial data, of course. The investments were aimed at low income households, so the money saved helped reduce poverty in the area. Plus, the reduction of carbon in the atmosphere from the program has additional economic benefits. Nevertheless, the disappointing result could be a blow to the willingness of the government to make similar investments in the future.

Let the Buyer Beware

The big lesson for the consumer? Don't believe just any claim about energy efficiency, and do your due diligence before investing in a big-ticket upgrade. You can and should make efforts to reduce your energy consumption, but be careful not to blow your investment dollars on items that don't give you a good return.

"This underscores the value of field-testing," paper author Michael Greenstone said to Vox. "Particularly in a world where economy-wide carbon pricing does not look feasible, we should be redoubling our efforts to find those CO2 reduction measures that have the biggest bang for the buck."

If you need advice on how to get the best return when it comes to energy efficiency, find an experienced electrician who can help you invest your dollars wisely and steer you away from less effective purchases.