More Articles from Archive ~ Energy Efficiency

This is the second in a three part series that explores San Francisco’s Existing Commercial Building Energy Ordinance. In the first post, we went over why the legislation was passed, and here we will talk about how to comply if you own a building. Next we will talk about how owners can make the most [...]

Read full story →

Unless you own a commercial building in San Francisco, you may have missed a relatively recent piece of legislation that requires all buildings over 10,000 square feet to benchmark and disclose their energy use annually plus get an energy audit every five years. This three part series goes over why the legislation was passed, how [...]

Read full story →

Bombarded by information about going green and unsure where to start? Here is a simple, no-nonsense guide to your options for reducing your personal carbon footprint profitably

Read full story →

Ever wonder what that blinking red light on the restaurant bathroom light switch is doing and how the lights know that you’re in there? Understand occupancy sensors here!

Read full story →

Though alternative means of energy storage might be less well known than batteries, they have great utility in our electricity grid. And they are critical to its transformation.

Read full story →

Supercapacitors already play an important role in devices that need bursts of power like an automobile, and they have the capacity to revolutionize energy storage.

Read full story →

Have you ever looked inside a battery? In this post, we will discuss how batteries, ubiqituous in modern life, actually work.

Read full story →

You’ve almost certainly seen turbines before, but probably never heard of microturbines. They are an interesting technology with environmental opportunities and pitfalls

Read full story →

Energy storage for cars, computers, and power plants involves many tradeoffs. Learn about the fundamental choices and the metrics used to analyze the opportunities in this first of four posts!

Read full story →

What makes your laptop or cell phone battery die? How can you make it last longer? Find out.

Read full story →

The word ‘sustainability’ triggers a range of buzzwords: responsibility, environmentally friendly, safe, organic, equitable, recyclable, long-lasting, renewable, profitable, or biodegradable. As consumers, we now have the option of purchasing ‘sustainable’ seafood[1] or “sustainable” clothing[2]. Most famously, in 1987 the Brundtland Commission defined sustainable development as “meeting the needs of the present without compromising the ability [...]

Read full story →

Though a relatively obscure energy modulating solution for now, it has recently begun being marketed as an energy efficiency panacea. But is it?

Read full story →

Unless you’re either uncomfortable, or a mechanical engineer, odds are you don’t think about the temperature of the building you’re in. When you walk into a pizza place for lunch on a hot summer day, you expect to be greeted by a rush of cold air as you pass through the doors and would be [...]

Read full story →

There is a lot of talk in the energy efficiency world stating that repairing or replacing steam traps saves oodles of money and energy, and it’s all true. Rarely, however, have I seen a good explanation of why. This post explains what steam traps are, what they do, why they’re so important, and how replacing steam traps saves oodles of money and energy.

Read full story →

Separating the marketing of a popular type of light from the reality.

Read full story →

Odds are, you have been misdirected to this page. But if you came to learn about wasted energy usage and standby loads, then you are in luck. “Vampire loads,” “Phantom Loads,” or “Standby loads” are the power that devices use when you are not using them. Yes, frustratingly, every time you leave a computer, coffee [...]

Read full story →

Summer is upon us: what is it that those magical air conditioners are doing to the hot air? The basics start with sensible and latent heat.

Read full story →

How do we heat a room? If your answer is “by adding energy to the room,” then the good news is you are thinking like a physicist, but the bad news is you’re wrong.

Read full story →

What’s an economizer? If you’re asking that question, you are not yet an energy efficiency fanatic. That’s okay. This post is for you.

Read full story →

How do people actually know how much energy is coming out of a solar array? How do people measure energy efficiency savings? This article discusses some of the most common and useful energy engineering tools.

Read full story →

What a boring title. Those pendulous words, however, describe one of today’s most exciting and far-encompassing opportunities to help the environment while saving individuals and companies money.

Much time is spent talking about solar project finance. Not least of all by us: here, here, and here. There are a number of reasons for this: solar projects involve large dollar amounts, they are more commonly financed than efficiency projects, and they are highly visible. They are, however, generally less profitable investments than energy efficiency projects. Which leads to a reasonable question: why don’t more people implement energy efficiency projects?

Reasonable, but mysterious.

Read full story →

Updated from earlier post – thank you Emma for your helpful feedback! If you have questions, you may always email us at info {at} carbonlighthouse.com. We’ll do our best to answer as soon as we can! Roof top cooling towers are a critical aspect of energy efficiency in buildings. They can provide a way to [...]

Read full story →

With the release of the latest McKinsey report on Energy Efficiency, the Federal Government, the Non-Profit world, and the Private sector have come together in promoting energy efficiency as a viable means of fighting climate change and increasing corporate (and household) profits simultaneously. But unlike solar electricity, which can easily be metered and hence easily measured and verified, electricity saved through energy efficiency is more difficult to track. Here is how energy efficiency can be accurately measured and verified!

Read full story →