What happens when your largest solar equipment supplier suddenly files for bankruptcy? And worse, they stop paying you for your ongoing projects? This is the nightmare scenario for solar installers everywhere. As the solar industry faces shifting policies, rising interest rates, and market turbulence, some companies are managing to thrive despite the challenges. One such standout is Renova Energy. In this week’s episode, Vince Battaglia, CEO of Renova Energy, shares the secrets behind the compan...
Oct 02, 2024•30 min
Anyone who pays an electric bill in California knows we’re in the midst of an energy crisis. The stark reality is that this crisis is enabled by politicians who lack the will to do something about it. But unlike many politicians, Sam Liccardo took action to lower electric bills when he was the Mayor of San Jose. Now, as candidate for U.S. Congress, Sam plans to tackle this these energy affordability problems on both a state level and national scale. Please join me on this week’s Energy Show as U...
Sep 24, 2024•29 min
FINALLY, someone who actually understands our crazy-complicated electric bills! His name is Dr. Ahmad Faruqui. I’m delighted to have Ahmad join me on this week’s Energy Show to talk about energy policy -- with a particular focus on why the heck our electric bills keep going up when it’s so inexpensive to generate power with solar and wind. It helps to have a PhD in economics, as Ahmad has from UC Davis. He started his energy policy career at the California Energy Commission, and then went over t...
Sep 17, 2024•34 min
Unfortunately, there are a few "quick buck" solar companies that take advantage of unsuspecting homeowners. These ten tips will help you avoid these scam artists -- and get the best solar and battery installation for your home or business. 1. Beware of the word “Free” 2. Beware of TGTBT pricing and financing 3. Don’t sign up on the spot 4. Do not trust quotes generated completely online 5. Beware of “free maintenance and cleaning” commitments 6. Beware of optimistic system savings 7. Research th...
Sep 10, 2024•22 min
California’s clean energy future is on a collision course with profit-oriented monopoly utilities. From the Governor’s office to the California Public Utilities Commission to the Legislature, policies are being implemented that are leading to skyrocketing electric rates and record utility profits — while at the same time crushing California's rooftop solar and storage industry and knocking the state off track in meeting its own clean energy goals. It’s a classic David vs. Goliath story. Only, in...
Aug 27, 2024•30 min
I bet you didn’t know that the “WH” in FranklinWH stands for "Whole Home." The Jersey Boys from Franklin designed their battery system from the ground up to help people back up their whole home without adding extra batteries or expensive load shedding subpanels. This capability has made Franklin one of the best selling battery systems on the market. Founder Gary Lam and Product Manager Doug Amarhanow — both Rutgers graduates — are my guests on this week’s Energy Show. In addition to integrated l...
Aug 20, 2024•40 min
“SunPower” and “bankruptcy” are two words I never thought I’d see in the same sentence. But we should temper our schadenfreude. The solar industry owes SunPower and their employees tremendous gratitude. Without a doubt, our industry would be much smaller without SunPower’s early and determined leadership. So rather than dance on their potential grave, this week’s Energy Show will focus on SunPower’s accomplishments that I’ve witnessed first-hand over the past 20 years. Think about back contact c...
Aug 13, 2024•18 min
Who would have thunk that you could put a 240 volt split phase inverter on the back of every solar panel? The gurus at Enphase and Akeena did, and I've been a fan ever since their first prototypes in 2008. In fact, I still have Enphase M-190 microinverters on my San Francisco home. Time for an upgrade? Probably! Our special guest is Raghu Belur, co-founder and Chief Product Officer of Enphase. We've discussed microinverters for 16 years, witnessing Enphase's rise in the solar industry. Raghu sha...
Aug 06, 2024•35 min
You don’t have to be a Boomer to remember the days of simple DC wire connections to string inverters. For the most part, these times are long gone. Since 2010, module-level power electronics (MLPE) have taken over — and now, with batteries and advanced load control, solar systems have evolved into the energy focal point for homes. This Energy Show podcast highlights new capabilities from SolarEdge, broken up into two segments. Today’s podcast, the first SolarEdge segment, is focused on interests...
Jul 25, 2024•26 min
Yes, definitely. Heat pumps are literally and figuratively cool. And without a doubt, the best time to consider installing a heat pump is when your AC (or furnace) dies. Heat pumps do double duty, providing both heating and cooling. They offer significant savings and improved comfort -- which I confirmed first hand after my old outdoor air conditioner compressor died. Replacing both my old AC and gas furnace with a heat pump was one of the best home improvements I’ve ever made. The system operat...
Jun 24, 2024•15 min
Consider the poor photons! If your panels are dirty you are causing trillions of premature photonic deaths when they collide with dirt molecules. Please give those photons the chance to knock an electron loose from an eager semi-conductor. Instead of being converted to heat and banished to quantum hell. Save The Photons. Clean Your Solar Panels After just a week, your panels might look slightly dusty. But a light coating of dust doesn’t significantly block sunlight. However, severe grime, especi...
Jun 18, 2024•23 min
Are you sick of all the heat pump hype? Skeptical about why you should buy one right away? Don’t mind paying huge bills to your utility for methane (natural gas)? Even heat pump enthusiasts like us agree with you — they are definitely NOT for everyone. Here are five reasons why heat pumps may not be the right thing for your house: 1. You don’t believe in global warming and prefer to burn fossil fuels 2. Heat pumps are too expensive 3. It's too complicated to install a HPWH or HP HVAC 4. You rent...
Jun 04, 2024•26 min
This week's Energy Show dives into the tumultuous landscape of the clean energy industry, painting a picture of contrasting fortunes akin to the classic “Tale of Two Cities.” On one hand, we witness a surge in demand for clean energy, driven by improving economics, lower equipment costs, and rising electric rates, alongside enticing incentives. Yet, on the flip side, California experiences its first-ever decline in rooftop solar installations, coupled with a slowdown in electric vehicle growth a...
May 13, 2024•23 min
I read an avalanche of media criticism when Elon Musk fired his entire SuperCharger team a few weeks ago. In spite of all the whining, it was a good business decision for Tesla. Here’s why: expanding and running a fast charging network is a lousy business. Installation costs are high, permitting and construction delays are extensive, and revenues from charging cannot overcome the high electricity costs charged by utilities. According to a McKinsey and Company study in October of 2023, most EV fa...
May 08, 2024•24 min
10 years in the solar and storage industry qualifies most industry veterans as a solar old timer. But there is one person who stands out as a beacon of leadership, longevity and success. Ed Murray has been heating water molecules (solar thermal), converting photons to electrons (solar PV) and saving customers money since 1978. That’s 322 dog years! Ed Murray, CEO of Aztec Solar in Sacramento, knows solar thermal, PV and storage technology like the back of his hand. He’s managed to run his succes...
May 01, 2024•27 min
It’s not a flippant comment or a classic jazz solo — but an existential question about the devastating trend our civilization is on due to climate change. The history of Earth Day shows how the worldwide environmental movement has evolved from concerns about in-your-face air and water pollution … to a focus on the invisible hazard of rising CO2 emissions. To a large degree we’ve cleaned up the worst of the visible air pollution, contaminated water, and toxic wastes hiding under a few feet of top...
Apr 22, 2024•26 min
Welcome back to Part 2 of our interview with Scott Sullivan, my friend and one of the best networked executives in the industry. Earthquake excitement has diminished in the New Jersey area, but seismic changes in solar continue around the country. In Part 1 we discussed what happens in the solar and storage industry — really every industry — when company profits decline. It’s a tough adjustment to make, and many companies have not yet recovered from this high interest rate environment. Neverthel...
Apr 16, 2024•25 min
Seismic changes in the solar and storage industry? Who would have thought that our friends in New Jersey would relate so viscerally? Their recent 4.8 magnitude quake in early April literally extended this metaphor across the country. Metaphors aside, the solar and storage industry is changing faster now than I have ever seen: * Electric rates are soaring, along with utility profits * Solar equipment costs — panels, inverters, batteries — are declining * UL-3741 standards for rapid shutdown throw...
Apr 09, 2024•33 min
March isn't just about shamrocks and leprechauns; it's also Women's History Month, highlighting the incredible contributions of women in various fields. But have you ever wondered about their role in the energy transition? In general, women are just as involved as men — not just in solar, but also in batteries, hydrogen, policy-making, electrification, and manufacturing. However, there's a glaring gap in representation when it comes to the construction side of energy systems. But not at Luminalt...
Apr 02, 2024•32 min
The Learning Curve for understanding home batteries and solar systems is steep. Your battery system education will require mastering at least twice as much jargon, TLAs (that’s Three Letter Acronyms), specifications and industry gossip than ordinary solar systems. So if you don’t want to get bamboozled by an aggressive salesperson, this week’s podcast is a great place to start. Some of the topics and questions include: * What is the best way for me to expand my existing solar system? * What are ...
Mar 27, 2024•46 min
The Utility Empire is striking back. As a result, the rooftop solar industry is experiencing its first decline in growth ever. In California alone the end of Net Metering has resulted in an 80% drop in rooftop installations and 17,000 job losses among passionate Rebel solar installers. Utilities in other states are following California’s lead, leveraging their Death Star-caliber monopoly powers and millions in lobbying money to further reduce competition. Even though we need rooftop solar more t...
Mar 19, 2024•33 min
This week we’re talking about World Domination. Domination of energy production, that is. In the re-scrambled words of the wise and infamous Dr. Evil: “Why make Gigawatts when we can make…Terrawatts!” Indeed, solar is on track to completely dominate electricity generation. Solar is growing faster than wind, nuclear and LNG ever did. Alternatives to solar such as nuclear fission, nuclear fusion, CO2 capture and sequestration (CCS), and CO2 direct air capture (DAC) are way too expensive and very s...
Mar 05, 2024•21 min
If you’re thinking about solar there’s something important you should know. It should be obvious, but just in case: there is no such thing as Free Solar. Getting solar — or a battery -- installed on your house is not cheap and certainly not free. These projects are significant construction and electrical improvements. No company will install solar or a battery for free. I guarantee it. The Romans had a term for it: Caveat Emptor. Let The Buyer Beware. Unfortunately, disreputable companies still ...
Feb 14, 2024•21 min
It’s no surprise that this is the most common question, since the solar panels themselves are the biggest cost component of a typical rooftop system. But I’m not going to give you the single "Best Panel" answer you may be looking for. Sorry. With over 100 companies making solar panels worldwide — and vast differences in efficiency, aesthetics and reliability — there is no one answer. So instead I’ll focus on the factors and characteristics to help you make the best decision for your particular c...
Jan 25, 2024•32 min
As in year’s past, we in California greet the New Year with yet another electric rate increase. It’s almost impossible to believe this time — but on January 1, 2024, PG&E raised electric rates by another 28.4% according to the San Jose Mercury News. Just follow the money. Since 2017, Utilities and the IBEW spent over $111 million on politicians and ballot measures to maintain their monopoly. So it should be no surprise that our government passed laws that make California’s peak rates the hig...
Jan 10, 2024•11 min
I’ve added electrification predictions for 2024 to my customary set of solar and storage predictions. Electrification incentives in the Inflation Reduction Act (IRA) are already starting to drive demand for heat pumps and electrical upgrades, just as tax credits accelerated the solar and EV markets in the past. So here I go again sticking my neck out with these ten home energy predictions for 2024: EVs will be equipped with integrated 240-volt generators for home backup and evening power Heat pu...
Jan 03, 2024•24 min
It’s not a matter of IF your hot water heater dies – but WHEN. According to the Department of Energy, the average lifespan of a hot water heater is 13 years. So if your hot water heater is over ten years old – or if you’re planning to electrify your home -- the time to PLAN for a Heat Pump Water Heater (HPWH) is NOW. Heat pump water heaters have become consumer favorites — and the bête noir of natural gas companies – because they have efficiencies in the range of 200-300%. Much more efficient th...
Dec 27, 2023•27 min
The goal to cap global warming to 1.5C is just a pipe dream. At the rate the earth is warming we’ll hit that threshold in 2026 or sooner. And since our consumption of fossil fuels continues to increase without any meaningful reductions of airborne CO2 concentrations, we are on pace to hit 3C by 2035. It doesn’t take a doctor to diagnose the illness: our planet is sick from global warming. Or to determine the cause of the illness: CO2 emissions. Or the cure: stop burning fossil fuels. But fossil ...
Dec 20, 2023•20 min
When you electrify your home – with a heat pump HVAC system, EV charger, induction cooktop or heat pump water heater – your demand for electricity will go up. Duh. Or as Tim Allen would say: “I need more power.” Incentives as part of the Inflation Reduction Act (IRA) help reduce the upfront costs of these electrification upgrades. But the only way to reduce the operating costs of these new electrical appliances is with more solar power on your roof. But upgrading an old solar system is not for t...
Dec 04, 2023•26 min
By 2035 all new cars in California will be electric. It’s an achievable goal based on lower operating costs and rapid price declines for new EVs. But the current per kwh costs of EV charging continue to increase -- and we continue to be woefully short of necessary EV charging infrastructure. I predict a massive backlash against expensive and inconvenient EV charging. Our EV deployment goals are likely to fail. Miserably. The reason is simple: our EV charging paradigm is based on utility profit m...
Dec 04, 2023•11 min
