Thank you, Tracy. Good morning, and thank you all for joining today's conference call. As many of you know, all of Acorn's revenue comes from our 99% ownership of our operating subsidiary, OmniMetrix. Despite a variety of macro challenges such as inflation, rising interest rates, supply chain and general economic uncertainty, OmniMetrix's hardware monitoring service model delivered a modest revenue improvement and improved gross margin in both the second quarter and first half of 2022 versus the year ago period.
Our hardware revenue continues to benefit from the decision by wireless service providers to no longer support legacy 3G wireless technology in favor of newer technologies like LTE and 5G, which delivers superior bandwidth and performance. As we've discussed, this sunsetting of 3G has benefit sales of our next-generation monitoring hardware but has had a nominal negative impact on our margin revenue growth. And this is mainly due to the loss of some customers that do not upgrade or renew their monitoring services.
We expect a small number of remaining 3G units to be upgraded over the balance of the year, substantially completing this transition. While we are disappointed with our operating performance in the second quarter, we expect to have a significantly stronger second half returning to what we believe is an attractive sustainable long-term path to growth.
Our positive outlook is based on purchase orders we have received along with current customer dialogues in progress. We are also confident about our longer-term growth prospects, especially in underpenetrated commercial and industrial markets we currently serve as well as opportunities to deploy our industry-leading remote monitoring and control technology and expertise in new complementary applications.
For example, in the second half of last year, we started beta testing, a new solution, our remote A/C Disconnect or gas pipeline, a product we call the RAD. We set our first customer trials will begin in April. And today, I'm very pleased to say that 1 of the top 5 global oil and gas companies in the world has given us a significant order for our RAD solution, which we expect to start deploying later this year.
We're also very excited about the significant growth potential we see in the area of electric power grid relief via the use of standby generators in demand response programs. Demand response programs provide compensation to standby generator owners who agreed to support the electric grid in meeting peak power demand by allowing an authorized company such as OmniMetrix to automatically activate their standby generator in times of grid stress, helping to avoid rolling brand-outs or blackouts in their communities.
We believe demand response offers OmniMetrix the potential to substantially increase the value of our business by at least doubling our profit per enrolled generator monitoring endpoint. Demand response programs paid the standby generating owner an annual fee just to make the generator available when needed and an additional fee when the generator is put into service.
These programs are available across commercial, industrial and residential market, but are only available for the latest generator models that deliver enhanced energy efficiency. To vision OmniMetrix to take a crucial role in demand response, in June, we partnered with CPower Energy Management, the leading national energy solutions provider, CPower develops demand response programs with each independent system operator, ISO, and OmniMetrix delivers the enabling wireless remote generator monitoring control services to automatically shift the [ paraload ] to enroll standby generators when the grid is stressed without any action on the part of the generator owner, while also monitoring generator activity and distributing payments.
So the generator owner not only has the peace of mind of knowing that their generator is monitored and therefore, will work when needed from reliable power during extreme weather events, but also consumers will now be compensated for allowing their generators to be on call to potentially avoid power outages for their neighbors in their community through demand response.
This partnership with CPower will also serve as a catalyst for dealers to offer new standby generators on significantly more favorable terms to homeowners and businesses. Not only does it bode well for generator sales, but it also makes the value proposition for acting or remote monitoring more enticing. In other words, if you can get a recurring payment for simply being on standby for a few hours a year, then purchasing or upgrading a generator equipped with remote monitoring capability is an easy economic decision.
Last year, we partnered with Houston-based power solutions specialist, a leading Briggs & Stratton generator dealer in Texas to bundle our monitoring solutions with generator sales. Building on our relationship last month, Power Solutions became the first dealer to partner with us on demand response. Through this partnership, Texas homeowners can earn compensation for offering good relief to the Texas ISO. The Electric Reliability Council of Texas, known as ERCOT. With heat waves around the world, stress on the grid has become a hot topic across the U.S., but particularly in Texas, the Midwest and California.
Adding to the grid burden is the rapid growth in electric vehicles, though still a small percentage of cars and trucks on the road, there are mandates and goals to increase electric vehicle penetration, just as California's commitment to become 100% EV by 2035, and California is already restricting or recommending that EVs only be charged at night.
Given these and other factors, the grid problems of today are expected to grow rapidly in years to come, it should create long-term demand for our demand response solutions. We've talked a bit on recent calls and today's press release about macro challenges that are mostly beyond our control from supply chain disruptions to inflation, rising interest rates and other general uncertainties in the economy. While we are not immune to these issues, our team has done a great job managing through these challenges.
For example, we've invested in inventory and advanced procurement of critical supplies and we have also made some design adjustments to accommodate parts availability. To address rising input costs late last year, we implemented a 15% to 20% price increase on monitoring equipment.
While we are pleased with our current position, we will consider additional inventory pricing adjustments as needed to protect our business position. With respect to inflation, it can also be a marketing point for our business to potential customers as our solutions reduce the personnel costs, travel time, emissions and the overall environmental impact required to monitor and manage industrial assets and critical systems.
Our value proposition improves as lease costs increase as remote monitoring a significantly less expensive, more effective and more environmentally friendly than inspection teams driving trucks to remote locations. Before handing the call to Tracy, I wanted to update you on the potential acquisition we discussed on our last call. We have set aside $300,000 of cash in an escrow account for a potential acquisition that we were evaluating within our space. We had executed a binding letter of intent had conducted due diligence to obtain non-dilutive financing and we're prepared to move forward.
However, the seller's Board had a fiduciary out and chose not to move forward with our deal. During the second quarter, our escrow deposit was returned in full. We continue to look for attractive acquisition opportunities and are fortunate to have significant financial strength and backing to support our business and its efforts.
Overall, though I'm not pleased with our revenue growth in the first half of 2022, I am pleased with the progress we've made in business development and with our outlook for the second half of 2022.
With that, I'll turn the call back to Tracy Clifford, our CFO, to review our financial results in more detail. Tracy?