Overview of ArcturusHD’s building energy services

We currently offer the following services for new, residential construction:

1. Energy Compliance (Title 24, Part VI): Energy modeling, compliance documents, and design consulting for new homes.

2. Green Point Rating: Third-party rating for the Build it Green Green Point System for new single-family and multi-family homes.

3. HERS (Home Energy Rating Services) Testing: performance testing for new homes under construction

We also offer these services for existing, non-residential buildings:

1. Energy Auditing, baseline, benchmark, and retrocommissioning assessment

2. Measurement and verification for proposed and completed retrocommissioning projects or energy efficiency measures.

ArcturusHD, LLC | jeff@arcturusHD.com | (650) 575-4238

New service from ArcturusHD: Measurement and Verification for non-residential buildings!


I started ArcturusHD as a residential consulting practice, working with homeowners to create more energy-efficient, better performing, more livable homes at the lowest feasible cost. However, for a variety of reasons, I have moved into the non-residential field; moreover, I am now working on the analytical side of energy management, sometimes referred to as Measurement and Verification (M&V).

Broadly speaking, M&V is the practice of collecting and analyzing data related to a building’s operations, for the purpose of managing its energy usage, its operating strategies and costs, and ultimately, to verify that cost-saving strategies and upgrades are achieving the expected results, both in terms of performance, and cost savings.

A typical M&V engagement starts with something like an ASHRAE level I audit–basically, an analysis of utility bills combined with a walk-through to identify the buildings main structural features, its systems, and identify low-risk, high-reward options for saving energy. In the longer term, I will work with an owner to develop a list of future projects, along with a cost-benefit analysis to help determine which measures should be implemented for simple savings, which make more sense to do as part of typical ongoing equipment replacement, and how any and all measures can be financed to optimize cash flow and ultimately, asset value.

Measurement and Verification is part of the process referred to as Building Commissioning (BCx). Building Commissioning is now required by an increasing number of jurisdictions, including the State of California, in connection to new buildings, or to major renovations of existing buildings. Re-commissioning of existing buildings, retro-commissioning of existing buildings, and ongoing commissioning are all examples of commissioning practices designed to improve the performance, energy efficiency, and ultimately, the value of existing buildings. Measurement and verification is, generally, a low-cost, low-risk procedure aimed at assessing a buildings operations and maximizing its performance in a cost-effective way.

For more information, feel free to contact me anytime:

Jeff Aalfs

ArcturusHD, LLC | jeff@arcturusHD.com | (650) 575-4238


NEW! Prezi version of 2009 LEED EB: O&M

I have created an interactive version of LEED Exisiting Buildings: Operations and Maintenance, at Prezi.  The link is:


Take a look; my goal was to create a navigable version of  a LEED system, where all the credits were organized by area.  You can view it like a slideshow in order, or you can use the blue buttons to jump from the Table of Contents to a specific credit description, and then back. Eventually, I would like to add more external links or information, so that a user would have the credit descriptions, and then the resources to address specific credits, all organized in a grid where everything can be accessed directly.

Let me know what you think!

ArcturusHD, LLC | jeff@arcturusHD.com | (650) 575-4238

Welcome to ArcturusHD: a brief introduction to Energy Consulting

Is your home doing its job?

Is it comfortable?  Healthy? Affordable?

Or, is it hard to keep the right temperature?  Do you notice moisture or unpleasant smells? Does anyone in your home have asthma or allergies that are worse when they spend time indoors?  Do you get a knot in your stomach when you open your Gas & Electric bills?

Homes are complicated systems, but in most cases, they can be made more comfortable, healthier, safer and more affordable with reasonable upfront investments.  ArcturusHD can assess your needs and your home, help you form a plan to improve it, find rebates and tax incentives to help defray costs, and make sure the work is done properly.  We’re here to represent you in the retrofitting process.  E-mail or call and see what we can do for you.

ArcturusHD, LLC | jeff@arcturusHD.com | (650) 575-4238