Lessons Learned from 100,000 Hours+ of Real Time Geothermal Monitoring Data – Part 1 This is a guest article by Matt Davis, co-founder of Ground Energy Support (GES). GES provides a top quality real time monitoring package for monitoring geothermal heat pumps. Matt is an expert in geothermal monitoring. Matt has over 25 years of experience… Continue reading “Lessons Learned from 100,000 Hours+ of Real Time Geothermal Monitoring Data – Part 1”
Performance Based Contracting is the Future of the Residential Geothermal Business. Prove Me Wrong (Screen shot of the Ground Energy Support Geothermal Monitoring dashboard) If you’re serious about geothermal, you need to be monitoring your projects in real time. Click here to buy a Ground Energy Support monitoring package. Note, I advise Ground Energy… Continue reading “Performance Based Contracting is the Future of the Residential Geothermal Business. Prove Me Wrong”
The Most Complete List of Commercial Geothermal Cost Data This is a list of the best resources I’ve been able to find for commercial and public geothermal projects. We need to be creating more case studies in order to reduce risk for property owners. By showing property owners, specifically… Continue reading “The Most Complete List of Commercial Geothermal Cost Data”
Community Solar Lessons Learned in Vermont – Jeff Forward @ Renewable Energy Vermont 2012 At the beginning of October, Renewable Energy Vermont held their annual conference. There were a number of amazing presentations and some struck me more then others. For the ones I really enjoyed, I decided to follow up with the presenters… Continue reading “Community Solar Lessons Learned in Vermont – Jeff Forward @ Renewable Energy Vermont 2012”
[Photo Guide] Installing Solar PV Racking on Flat Roofs in NYC For residential applications everyone knows that a 10 pitch metal seam room is as easy as you get can for residential solar, followed by high quality asphalt shingles. Unfortunately, there are a lot of places in the country, specifically in cities, where… Continue reading “[Photo Guide] Installing Solar PV Racking on Flat Roofs in NYC”
[Photos] Repairing a 30 Year Old Solar Thermal System in NYC Last week, I spent a day repairing a solar thermal system that has been operating for more then 30 years in NYC. I just wanted to share a few pictures and points because it’s super cool. The system was installed… Continue reading “[Photos] Repairing a 30 Year Old Solar Thermal System in NYC”
[Interview] Learnings from Ball State and the Largest Geothermal Project and What It means for Selling District Heating Geothermal A few months ago, I heard about the largest geothermal heat pump installation was breaking ground at Ball State University. Clearly, this is amazing project that could change the whole industry. Also, I always noticed PR for huge solar PV… Continue reading “[Interview] Learnings from Ball State and the Largest Geothermal Project and What It means for Selling District Heating Geothermal”
Part 3: How to Design Grid-Connected Solar PV Inverters, Strings, and Conductors This is a the third installment in a three-part series on residential solar PV design. The goal is to provide a solid foundation for new system designers and installers. This section is dedicated to the basics of inverter sizing, string… Continue reading “Part 3: How to Design Grid-Connected Solar PV Inverters, Strings, and Conductors”
“What’s the Most Efficient?” Geo VS Solar Thermal VS Solar PV I’m doing some sales consulting work in NYC, and there’s one question I’m getting a lot from property owners: “What is the most efficient renewable energy technology?” In the city, they are mainly speaking of solar PV vs solar thermal,… Continue reading ““What’s the Most Efficient?” Geo VS Solar Thermal VS Solar PV”
Geothermal Performance Case Study: Closed Loop vs. DX vs. Kelix Thermocouple (This post has received a lot of feedback as expected, I’ve posted some update information at the bottom of the post from Sam Johnson’s team and from Kelix themselves) Last month, I published an interview about the Kelix ground coupling… Continue reading “Geothermal Performance Case Study: Closed Loop vs. DX vs. Kelix Thermocouple”
Part 2: How to Design PV – A Walkthrough of How to Size a Solar Array and Estimate Power Production This is the 2nd article in a series about how to design solar PV projects. We started with solar 101, the basics. If you’re brand new or need to brush up on the basics, please read it first. It discusses… Continue reading “Part 2: How to Design PV – A Walkthrough of How to Size a Solar Array and Estimate Power Production”
How to Design a Solar PV System 101: The Basic Terms Want a basic technical understanding of solar PV project terminology? Read on… If you’re an experienced installer, none of this information will be new to you. If you’re new to solar, it will be helpful. But keep in mind, we’ll… Continue reading “How to Design a Solar PV System 101: The Basic Terms”
5 Tips on Designing Vertical or Slinky Geothermal Loop Fields We’ve found it useful to focus on both articles that will help companies with their sales and marketing AND design and installation. A few weeks ago, I shared a piece – thanks to Ryan Carda – on geothermal flow path analysis for ground… Continue reading “5 Tips on Designing Vertical or Slinky Geothermal Loop Fields”
HS TV Ep 8: 1/2 the Drilling Depth, 1/3 the Footprint, SCW vs. Closed Loop Geothermal Systems Standing column well geothermal projects have significant advantages over closed geothermal projects in certain circumstances. Standing column wells typically need half the amount of drilling then traditional closed systems, because they can transfer heat so much faster. Also, they be… Continue reading “HS TV Ep 8: 1/2 the Drilling Depth, 1/3 the Footprint, SCW vs. Closed Loop Geothermal Systems”
[Video] How to Select Solar Hot Water Components and System Types In this video, author and ISPQ Certified Master Trainer Bob Ramlow provides a detailed outline of common components found in solar thermal systems, and the four most common types of systems.
The 4 Differences Between Geothermal Standing Column Well and Closed Loop Systems There are four major differences between standing column well (SCW) and closed loop geothermal systems. The use of exchange fluid Loop materials and characteristics Use of heat exchangers Applications of the technology To learn more about standing column well design, download… Continue reading “The 4 Differences Between Geothermal Standing Column Well and Closed Loop Systems”
Geothermal Loop Design: Series vs Parallel Flow Path Analysis When designing geothermal ground loops, this is an issue that a lot of people get hung up on. Because of the advantages of, we use parallel circuits in ground loops almost exclusively in our industry. Read more to hear why. When loops are tied… Continue reading “Geothermal Loop Design: Series vs Parallel Flow Path Analysis”
What You Need to know About Quoting and Selling Standing Column Well Systems It’s much easier to answer this question for residential applications. The price is composed of three pieces: the drilling cost, the loop field installation including underground piping to/from the building, and the HVAC system installation. Many times the driller is… Continue reading “What You Need to know About Quoting and Selling Standing Column Well Systems”
13 Steps to Basic Geothermal Standing Column Well Design HeatSpring Instructor Albert Koenig discusses the 13 steps to basic Geothermal Standing Column Well (SCW) Design… Unlike closed loop geothermal installations, open loop systems, in particular, standing column well (SCW), require more diligence from the designer than just the well… Continue reading “13 Steps to Basic Geothermal Standing Column Well Design”
Q+A with Solar Thermal Expert Bob Ramlow: Hard Water Issues, PV Powered Solar Thermal and Air Venting Bob Ramlow answers student questions about solar thermal. He tackles hard water, PV powered solar thermal systems, and best practices for air vent installations. Is hard water an issue with closed loop solar thermal systems? Are solar PV powered solar thermal… Continue reading “Q+A with Solar Thermal Expert Bob Ramlow: Hard Water Issues, PV Powered Solar Thermal and Air Venting”