“If your toilet’s so smart, how come I can hack it?”

Thus reads the headlines on David Meyer’s Gigaom post on news that the Satis toilet, manufactured by the Japanese firm Lixii, comes with a smartphone app that can be used to control any Satis toilet (see also this BBC news article). You may wonder why a toilet needs an app, which is a valid question; this one allows recording of one’s activity (if you so choose …), remote flushing, remote air freshener spray, and remote bidet operation. Subjective utility being what it is, I’ll consider Lixii as entrepreneurs responding to what they perceive as some undersatisfied preference in the market, which the extent of their subsequent profits will indicate or not …

Although the story is scatologically humorous, Meyer’s closing observation hits upon exactly the same point I made recently in my post about the hackability of home management systems:

Of course, it’s not like someone will be exploiting this vulnerability to prank someone a continent away — Bluetooth is a pretty short-range wireless technology. However, it’s the kind of thing that should be borne in mind by manufacturers who are starting to jazz up previously low-tech appliances with new-fangled connectivity.

Because when it comes to security, as Trustwave SpiderLabs and others have warned, the home is the last place you want to be caught with your pants down.

Disruptive innovation and the regulated utility

Over the weekend the New York Times ran a good story about how rooftop solar and regulatory rules allowing net metering are putting pressure on the regulated distribution utility business model:

The struggle over the California incentives is only the most recent and visible dust-up as many utilities cling to their established business, and its centralized distribution of energy, until they can figure out a new way to make money. …

“Net metering right now is the only way for customers to get value for their rooftop solar systems,” said Adam Browning, executive director of the advocacy group Vote Solar.

Mr. Browning and other proponents say that solar customers deserve fair payment not only for the electricity they transmit but for the value that smaller, more dispersed power generators give to utilities. Making more power closer to where it is used, advocates say, can reduce stress on the grid and make it more reliable, as well as save utilities from having to build and maintain more infrastructure and large, centralized generators.

But utility executives say that when solar customers no longer pay for electricity, they also stop paying for the grid, shifting those costs to other customers. Utilities generally make their profits by making investments in infrastructure and designing customer rates to earn that money back with a guaranteed return, set on average at about 10 percent.

In a nutshell, what’s happening is that environmental and global warming policy initiatives are resulting in government subsidies and tax credits for consumer investments in rooftop solar, especially in states like California. As more consumers install rooftop solar they both make less use of the electricity distribution network to receive electricity and can put the excess power generated from their solar panels onto the distribution grid (called net metering). Under net metering they receive a per-kilowatt-hour payment that ranges between the averaged, regulated retail rate and the wholesale price of electricity at that time, depending on the net metering rules that are in operation in that state. From the regulated utility’s perspective, this move creates a double whammy — it reduces the amount of electricity sold and distributed using the wires network, which reduces revenue and the ability of the utility to charge the customer for use of the wires, but since most of the costs for the network are fixed costs and the utility is guaranteed a particular rate of return on those assets, that means increasing rates for other customers who have not installed solar.

Offsetting some of that revenue decrease/fixed cost dilemma is the fact that net metering means that the utility is purchasing power from rooftop solar owners at a price lower than the spot price they would have to pay to purchase power in the wholesale market in that hour (i.e., wholesale price as avoided cost) … except what happens when they have already entered long-term contracts for power and have to pay anyway? And in California, the net metering payment to the customer is the fully-loaded retail rate, not just the energy portion of the rate, so even though the customer is essentially still using the network (to sell excess power to other users via the regulated utility instead of buying it), the utility is not receiving the wires charge portion of the per-kilowatt-hour regulated rate.

Sounds like a mess, right? It sure is. And, as Katie Fehrenbacher pointed out yesterday on Gigaom, the disruption of the regulated electric utility in the same way that Kodak, Blockbuster, and Borders have been disrupted out of existence is not a new idea. In fact, I made the same argument here at KP back in 2003, building on a paper I co-authored for the International Association of Energy Economics meetings in 2002 (and here are other KP posts that both Mike and I have made on net metering). I summarized that paper in this Reason Foundation column, in which I argued

Many technological and market innovations have reduced the natural monopoly rationale for traditional electric industry regulation. For example, consider distributed generation. Distributed generation (DG) is the use of an energy source (gas turbines, gas engines, fuel cells, for example) to generate electricity close to where it will be used. Technological change in the past decade and deregulation in the natural gas industry have made DG an economically viable alternative to buying electricity from a monopoly utility and receiving it over the utility’s transmission and distribution grid. The potential for this competition to discipline a transmission owner’s prices for transmission services is immense, but it still faces some obstacles. …

Technological change and market dynamics have made the natural monopoly model of electricity regulation obsolete. While technological changes and market innovations that shape the electricity industry’s evolution have received some attention, their roles in making natural monopoly regulation of transmission and distribution obsolete have not received systematic treatment. For that reason, the policy debate has focused on creating regional transmission organizations to rationalize grid construction, but has not dug more deeply into the possible benefits of dramatically rethinking the foundations of natural monopoly regulation.

I may have been a bit ahead of my time in making this argument, but the improvements in energy efficiency and production costs for solar technology and the shale gas revolution have made this point even more important.

Think a bit about how the regulated utilities and regulators have come to this point. They have come to this point by trying to retain much of the physical and legal structure of traditional regulation, and by trying to fold innovation into that structure. The top-down system-level imposition of requirements for the regulated utility to purchase excess solar-generated electricity and to pay a specific, fixed price for it. The attempts of regulated utilities to block such efforts, and to charge high “standby charges” to customers who install distributed generation but want to retain their grid interconnection as an insurance policy. The fact that regulation ensures cost recovery for the wires company and how that implies that a reduction in number of customers means a price increase to those customers staying on the wires network. And adding on top of that the subsidies and tax credits to induce residential customers to purchase and install rooftop solar. I don’t think we could design a worse process and set of institutions if we tried.

You may respond that there’s no real alternative, and I’d say you’re wrong. You can see the hint in my remarks above from 2003 — if these states had robust retail competition, then retailers could offer a variety of different contracts, products, and services associated with distributed generation. Wires companies could essentially charge standard per-unit transportation rates (assuming they would still be regulated). In that market design, much of the pressure on the business model of the wires company from distributed generation gets diluted. The wires company would still have to be forward-looking and think (with the regulators) about what increased penetration of distributed generation would mean for the required distribution capacity of the wires network and how to invest in it and recover the costs. But the wires company would be just that, a wires company, and not the party with the retail relationship with the residential customer, so all of these distortions arising from net metering would diminish. If I were a wires company I would certainly use digital meters and monitors to measure the amount of current flow and the direction of current flow, and I would charge a per-kilowatt-hour wires transportation charge regardless of direction of flow, whether the residential customer is consuming or producing. Digital technology makes that granular observation possible, which makes that revenue model possible.

That’s why states like California have created such an entangled mess for themselves by retaining the traditional regulated utility structure for integrated distribution and retail and trying to both absorb and incentivize disruptive distributed generation innovation in that traditional structure. Not surprisingly, Texas with its more deregulated and dis-integrated structure has escaped this mess — the only regulated entity is the wires (transmission and distribution) company, and retailers are free to offer residential customers compensation for any excess generation from distributed renewable generation sources, at a price mutually agreed upon between the retailer and the customer in their contract. In fact, Green Mountain Energy offers such a contract to residential customers in Texas. See how much easier that is than what is happening in California?

Honey, someone hacked our smart home

Ever since the first “vision” meeting I attended at the Department of Energy in 2003 about the technologically advanced electric power grid of the future, digital network security in a smart grid has been a paramount concern. Much of the concern emphasizes hardening the electrical and communication networks against nefarious attempts to access control rooms or substations. Less attention goes to the security of the home automation system itself.

Here’s why privacy and security issues matter so much in customer-facing smart grid products and services: how likely is it that someone can hack into your home energy management system? The resourceful technology and privacy journalist Kashmir Hill gained access to eight homes, merely by doing an Internet search to see if any homes had their devices set to be discoverable by a search engine:

Googling a very simple phrase led me to a list of “smart homes” that had done something rather stupid. The homes all have an automation system from Insteon that allows remote control of their lights, hot tubs, fans, televisions, water pumps, garage doors, cameras, and other devices, so that their owners can turn these things on and off with a smartphone app or via the Web. The dumb thing? Their systems had been made crawl-able by search engines – meaning they show up in search results — and due to Insteon not requiring user names and passwords by default in a now-discontinued product, I was able to click on the links, giving me the ability to turn these people’s homes into haunted houses, energy-consumption nightmares, or even robbery targets. Opening a garage door could make a house ripe for actual physical intrusion.

In this instance, early adopters of a now-discontinued home automation system had not changed their default settings to implement security protocols. They had not followed the simple security protocols that we have become habituated to in our home wireless networks, which most of us now routinely know to secure with a password at least. This security hurdle doesn’t seem very high, and it shouldn’t be; securing a home automation system separately with a username/password login is not difficult, and can be made less difficult for the technologically challenged through helpful customer service.

She goes on in the story to relate her interactions with some of the people whose houses she was able to access, as well as her discussion with people at Insteon:

Insteon chief information officer Mike Nunes says the systems that I’m seeing online are from a product discontinued in the last year. He blamed user error for the appearance in search results, saying the older product was not originally intended for remote access, and to set this up required some savvy on the users’ part. The devices had come with an instruction manual telling users how to put the devices online which strongly advised them to add a username and password to the system. (But, really, who reads instruction manuals closely?)

“This would require the user to have chosen to publish a link (IP address) to the Internet AND for them to have not set a username and password,” says Nunes. I told Nunes that requiring a username/password by default is good security-by-design to protect people from making a mistake like this. “It did not require it by default, but it supported it and encouraged it,” he replied.

One of the interesting aspects of her story (and you get a much deeper sense of it reading the whole article) is the extent to which these early adopters/automation hobbyists identified some but not all of the potential security holes in the home automation system. These are eager, knowledgeable consumers, and even they did not realize that some ports on the router were left open and thus made the system discoverable externally.

I think she’s right that for such technologies in such sensitive applications as home automation, default username/password authentication is good design. This is an application in which I think the behavioral economics arguments about setting defaults to overcome inertia bias are valid.

Insteon has since changed their default settings to require username/password authentication on the automation system separate from the home wireless network authentication, and the rest of the article describes some other companies that are working to close security holes in their home automation systems.

As we extend the smart grid into our home and the “Internet of things” becomes more deeply embedded in our lives, being aware of the value of securing our privacy and reducing the risk of unauthorized access to our homes and the devices and appliances in them becomes more important. The digital rules we apply to our financial transactions should guide our privacy and security awareness and decision in our home network too. That way we can enjoy the benefits of home automation and transactive energy that Hill lays out in her article while minimizing the risk of unauthorized access to our homes and our information.

How did an oil and gas state come to lead in wind power?

The Great Texas Wind Rush by Kate Galbraith and Asher Price

“The Great Texas Wind Rush” by Kate Galbraith and Asher Price

Kate Galbraith, a reporter for the Texas Tribune, and Asher Price, a reporter for the Austin American-Statesman, have written a great historical review of the development of wind power in Texas.

Admittedly, the book is a little light on the kind of details that the interested energy economist wants to know, but the narrative is strong and the economic clues are there for the interested reader to follow. The book covers the emergence of the industry from the pre-1980s idealists and tinkerers to the 2000’s industrial scale wind farms. Both the hopes and dreams of designers and developers, and the frequent crashing of those dreams, are reported upon. The industry has been boosted by often generous but usually uncertain policies, and challenged by sometimes high and sometimes low electric power prices. Some early California wind projects, mentioned in the book, seemed mostly about capturing generous investment incentives rather than long term power production. Many of these didn’t last long enough to meet their initial PURPA-based contract obligations. Texans tried to avoid the worst of the California policy experiences. (Turbine reliability has improved over the years, but remains an important issue in Texas and everywhere else.)

The book goes into all of these issues and more, all along keeping in touch with the characters that moved the business along.

West Texas locations and people feature prominently in the stories, and since I grew up in Amarillo and now work in Lubbock, I got a special kick out of reading about the locals. I have met five or six of the people interviewed for the book (and also met author Kate Galbraith when she was in Lubbock last year), and I’ve seen many of the wind power projects mentioned as I’ve driven around the state. Maybe I have an overly positive reaction to the book for personal reasons.

Still, I think the book provides a good review of the development of the industry. Whether you support or oppose wind power policies, this book will improve your understanding of the industry in Texas. It would provide a useful supplemental text for college courses on the wind power industry and renewable energy policy.

Political economy and dealer franchise laws

Tesla Motors is doing more than shaking up the automobile industry by producing an exciting high-end electric vehicle and establishing a network of battery-swapping stations. Tesla wants to sell directly to consumers, bypassing established dealer franchising that dominates the industry. But such dealer franchising has not been a mere transaction-cost-driven Coasian outcome — it’s undergirded by state laws that require manufacturers to sell their automobiles through independent dealers (Francine Lafontaine and Fiona Scott Morton, Journal of Economic Perspectives Summer 2010 (pdf) provides a useful overview of the history of such laws).

Existing dealers object to Tesla’s direct-to-market approach, and are using the dealer franchise laws to stop Tesla from doing so in states like Virginia; see also this Reason post on legislative events in New York. Note that Virginia law prohibits manufacturers from owning dealerships, outlawing vertical integration in the name of promoting competition, which means that a potential competitor can’t use vertical integration as a competitive strategy (yeah, that’ll promote competition …). Think about that restriction, and apply it to another innovative company: Apple. Dealer franchise laws in electronics would prohibit Apple (and Samsung, etc.) from operating its own stores. How would such a law affect competition in electronics? The answer is not clear, which is the point; vertical integration is not inherently anti-competitive at the retail level. In many ways, these laws are a relic, a holdover from a century ago when the economics of vertical integration was not well understood and vertically integrated firms with market power were per se suspect.

Dan Crane has a really nice post at Truth on the Market about the state dealer franchise laws that examines all of the arguments in favor of state dealer franchise laws. After countering them all and finding them wanting, Crane concludes that

Since the arguments for dealer laws are so weak, I’m left with the firm impression that this is just special interest rent-seeking of the worst kind.  It’s a real shame that Tesla—seemingly one of the most innovative, successful, and environmentally correct American industrial firms of the last decade—is going to have to spend tens of millions of dollars and may eventually have to cut shady political deals for the right to sell its own products.

This raises an interesting political economy situation. When innovative and environmentally correct meets the crony corporatism of existing legislation, is the entrenched incumbent dealer industry sufficiently politically powerful to succeed in retaining their enabling legislation that raises their new rival’s costs?


How cool is that nickel-iron battery?

It’s been too long since I’ve done a “how cool is that?” expression of awe and wonder at a piece of ingenious creativity. You may recall that early automobiles were battery-powered — the origins of the electric car are deep and over a century old. One battery technology, courtesy of (you guessed it) Thomas Edison, was nickel-iron; Edison was a proponent of electric vehicles.

Stanford researchers have been working on improving the performance of Edison’s nickel-iron battery, contributing to the portfolio of battery technologies that can improve electricity storage, which is the Holy Grail of electricity technology. As described by Stanford News,

“The Edison battery is very durable, but it has a number of drawbacks,” said Hongjie Dai, professor of chemistry. “A typical battery can take hours to charge, and the rate of discharge is also very slow.”

Now, Dai and his colleagues have dramatically improved the performance of this century-old technology. The Stanford team has created an ultrafast nickel-iron battery that can be fully charged in about 2 minutes and discharged in less than 30 seconds. …

Carbon has long been used to enhance electrical conductivity in electrodes. To improve the Edison battery’s performance, the Stanford team used graphene – nanosized sheets of carbon that are only 1-atom thick – and multi-walled carbon nanotubes, each consisting of about 10 concentric graphene sheets rolled together. …

“Our battery probably won’t be able to power an electric car by itself because the energy density is not ideal,” Wang said. “But it could assist lithium-ion batteries by giving them a real power boost for faster acceleration and regenerative braking.”

This approach to energy storage, using strongly-coupled nanomaterials, has a lot of promise for battery researchers working to improve efficiency, density, and charge decay over time.

NRG seeks capacity market for Texas

Michael Giberson

Joe Ragan, a VP at Power generation company NRG, recently opined in the Houston Chronicle in favor of a capacity market for the ERCOT power grid in Texas. A capacity market provides what you might call “being there” payments to generators, whether the generator’s power turns out to be demanded in the market or not.

I was struck by two things while reading the op-ed: first, no mention of the role of wind power in shaping prices and economic conditions for generation in Texas even though ERCOT has the highest wind penetration market-wide in the United States; and second, the way “prices” get invoked.

As any economics student knows, prices are the product of the interaction of supply and demand. In the op-ed, however, prices seem to be something driven by and driving the supply side of the market only. The demand side of the market has “needs” driven by the weather, but apparently not linked to the prices that consumers have to pay.

Admittedly, this way of thinking has 100+ years of tradition behind it in the electric power industry–that’s how it was done under the old cost-of-service, monopoly territory, regulated rate system in the electric power industry.

Texas has been trying something different, with more commercial risk to drive efficiency on the supply side, and potentially high price spikes to motivate an active and engaged consumer side of the market. A capacity market would kill the experiment before it has a chance to pay off.

How cool WAS that? Not that cool, it turns out.

Michael Giberson

While digging through the KP archives looking for another old story, I can across a 10-year old post titled “How cool is this?

(Let me warn you now that there isn’t much more to this 2013 post other than to observe that not every cool-sounding technology in 2002 turned out to work. You already know that; you can stop reading now. -MG)

What seemed pretty cool at the time was a new bladeless turbine that the inventor said would drastically reduce costs in a number of applications. The Hydrogen Renewable Energy Enterprise, LLC in Hawaii was reportedly very excited about the possibilities and signed up to be the exclusive seller of the technology.

Since I hadn’t noticed bladeless turbines taking over the world, I wondered what became of the technology. Unfortunately, other than a bunch of press release inspired news reports from about 10 years ago, not a lot of information is findable online about Hawaii-based The Hydrogen Renewable Energy Enterprise, LLC.

Utah-based International Automated Systems, Inc. (IAUS), developer of the bladeless turbine technology appears to be still around. In addition to the bladeless turbine, the company has developed products including a automated self-checkout retail system and a fingerprint identification system. The newest technology seems to be a solar energy thermal system which can be used with the bladeless turbine. The company website lauds its solar technology as “Years Ahead of Schedule” and costing less than “the World Government’s goal for solar power cost per kilowatt by the year 2020.”

In June 2009 Renewable Energy Development Corporation contracted with Needles, California to supply the town with solar power based on the IAUS technology. In an interview published in November of 2009, REDCO owner Ryan Davies touted the IAUS technology, saying, “All of our engineering reports and research data indicate that this technology will be significantly more efficient than PV. We’re quite excited about it.” A year later REDCO was pleading with Needles to boost the $128 per MW price in the contract after REDCO “discovered … fatal flaws in the technology they were going to use. Those flaws included cost and efficiency issues.” In 2012 REDCO filed for bankruptcy.

Neldon Johnson, President and CEO of IAUS, is quoted as saying he thinks the technology would have worked, had Davies and REDCO attracted enough investment. Maybe, but IAUS has apparently attracted a detractor online who has collected information about the company: See http://www.iausenergy.com, particularly the page http://iausenergy.com/NewsHistory/index.html, and don’t miss the website’s collection of photos from the IAUS solar pilot plant west of Delta, UT.

That’s about it. No real surprises.


Nest and technology-service bundling

Lynne Kiesling


Nest’s recent business developments are refreshing and promising. Building on the popularity of its elegant and easy-to-use learning thermostat in its first couple of years, Nest is introducing new Nest-enabled services to automate changes in settings and energy use in the home. Called Rush Hour Rewards and Seasonal Savings, Nest claims:

Rush Hour Rewards could help you earn anywhere from $20-$60 this summer—it takes advantage of energy company incentives that pay you to use less energy when everyone else is using more. Seasonal Savings takes everything Nest has learned about you and automatically fine-tunes Nest’s schedule to save energy, without sacrificing comfort. Field trials have been impressive: Nest owners have used 5-10% less heating and cooling with Seasonal Savings and 80% said they’d keep their tuned-up schedules after Seasonal Savings ended.

The ever-incisive Katie Fehrenbacher calls their move a bundling of its “smart thermostat with data-driven services“, which sounds about right to me.

Behind these new services is the cloud-based big data algorithms that are the secret sauce of Nest, and which Nest has now named Auto-Tune. Now that Nest has gotten hundreds of thousands of thermostats out there in the market, and has done two years of field trials, it has been able to collect a large amount of data about how customers use and react to temperature and cooling changes. Nest uses this data about behavioral changes to inform its services and how its algorithms work.

She also remarks on something I noticed — in its marketing of its new services Nest assiduously avoids the phrase “demand response”, instead saying “New features save energy & make money. Automatically.” Once you get beyond the elegant interface, the thoughtful network and device connectivity, and the “secret sauce” algorithms, Rush Hour Rewards is little more than standard, administered, regulator-approved direct load control. But Nest’s elegance, marketing, and social-media-savvy outreach may make it more widespread and appealing than any number of regulator-approved bill inserts about AC cyling have over the decades.

In a very good Wired story on Nest Energy Services, Steven Levy analogizes between the technology-digital service bundle in energy and in music; quoting Nest CEO Tony Faddell, Levy notes that:

This pivot is in the best tradition of companies like Apple and even Amazon, whose hardware devices have evolved to become front ends for services like iTunes or Amazon Prime Instant Movies. Explaining how this model works in the thermostat world, Fadell compares power utilities to record labels. Just as Apple provided services to help customers link with the labels to get music, Nest is building digital services to help customers save money. Unlike the case with record labels, however, Nest isn’t eroding the utility business model, but fulfilling a long-term need–getting customers to change their behavior during periods of energy scarcity.

“Until now, if utilities wanted customers to change their behavior to use less electricity at those time, they instituted what was called unilateral demand response—they wouldn’t automate the process, they’d turn off the air-conditioning whenever they wanted. It was like DRM during the iPod days—where companies like Sony said, ‘I am the guardian, and I’m going to tell you what to do’.”

Faddell (and Levy and Fehrenbacher) articulates the value potential of technology-service bundles to automate energy consumption decisions in ways that save energy and money without reducing comfort. While the guts of their services are still direct load control and are not dynamic in any way that would make meaningful use of such a potentially transactive technology, I do think it’s a promising evolution beyond the monolithic, administrative, regulatory demand response approach.

Is Iowa solar power ruling a camel’s nose into electric utility’s monopoly tent?

Michael Giberson

Eagle Point Solar, a for-profit solar power installer and operator, proposed to build a solar PV array on a Dubuque, Iowa municipal building under a long-term contract with the city. Under the contract, Eagle Point would own the solar array and sell power to the city in a “behind the meter” arrangement.

The local electric utility, Interstate Power and Light Company (IPL), challenged the arrangement as infringing on its exclusive service territory. In April of 2012, the Iowa Utilities Board agreed with IPL that the retail electric sales contract would require Eagle Point to be an electric utility and it would thereby be prohibited from providing service in IPL’s assigned exclusive electric service area.

Eagle Point appealed and in March 2013 the Iowa District Court for Polk County overturned the Iowa Utilities Board ruling. Eagle Point was declared not to be a public utility and therefore not in conflict with IPL’s assigned exclusive electric service area. Kari Lydersen at Midwest Energy News summarized key parts of the ruling:

The ruling emphasized that since there is no state statute defining what it means to sell to the public, the utility board should have relied on a decision in a 1968 Iowa case involving the state commerce commission and a natural gas company. Based on a series of tests outlined in that case and actually drawn from a previous Arizona case involving a natural gas company, the court decided that Eagle Point would not meet the definition of either a “public utility” or an “electric utility.”

Among other things, Schemmel noted, Eagle Point would not be able or required to meet all requests for service and it would not be competing with Alliant or creating a monopoly of its own.

Schemmel also pointed out that the solar panels would not meet all of the building’s electricity needs, hence the building would still be hooked up to the grid and buying electricity from Alliant. The building’s demand for electricity from the grid would be reduced, but this would be equivalent to the demand reduction created by energy efficiency measures like weatherization, Schemmel found.

The court also considered a state law declaring it “the policy of this state to encourage the development of alternative energy production facilities” as balancing against the public interests in the law granting monopoly territories to electric utilities.

A significant factor in this case was the ability of for-profit companies like Eagle Point, but not non-profit entities like city governments, to access numerous federal and state subsidies for solar power installations. If the deal was just about power supplies the city could have simply bought the solar array from Eagle Point. But this angle is actually less interesting that the broader possibilities of the precedent to support distributed generation.

The Iowa Utilities Board could appeal the decision to the state’s Supreme Court. But at least until that happens, or if the Supreme Court affirms the district court rules, behind-the-meter distributed power systems appear to be legal in Iowa (at least if they are “alternative energy” based generators, and if they don’t result in entirely removing a customer from electric utility service).

Small renewable providers and cogenerators, start your engines.

Eagle Point Solar: Dubuque City Operations Center

Eagle Point Solar: Dubuque City Operations Center