PG&E Supports Local Communities as It Pays More Than $230 Million in Property Taxes to 50 California Counties

Smart solar inverters anchor DER communications and control, meeting IEEE 1547 and California Rule 21 for volt/VAR, reactive power, and ride-through, expanding hosting capacity and enabling grid services via secure real-time telemetry and commands.

Key Points

Smart solar inverters use IEEE 1547, volt/VAR and reactive power to stabilize circuits and integrate DER safely.

✅ Meet IEEE 1547, Rule 21 ride-through and volt/VAR functions

✅ Support reactive power to manage voltage and hosting capacity

✅ Enable utility communications, telemetry, and grid services

Advanced solar inverters could be one of the biggest distributed energy resource communications and control points out there someday. With California now requiring at least early-stage “smart” capabilities from all new solar projects — and a standards road map for next-stage efforts like real-time communications and active controls — this future now has a template.

There are still a lot of unanswered questions about how smart inverters will be used.

That was the consensus at Intersolar this week, where experts discussed the latest developments on the U.S. smart solar inverter front. After years of pilot projects, multi-stakeholder technical working groups, and slow and steady standards development, solar smart inverters are finally starting to hit the market en masse — even if it’s not yet clear just what will be done with them once they’re installed.

“From the technical perspective, the standards are firm,” Roger Salas, distribution engineering manager for Southern California Edison, said. In September of last year, his utility started requiring that all new solar installations come with “Phase 1" advanced inverter functionality, as defined under the state’s Rule 21.

Later this month, it’s going to start requiring “reactive power priority” for these inverters, and in February 2019, it’s going to start requiring that inverters support the communications capabilities described in “Phase 2,” as well as some more advanced “Phase 3” capabilities.

Increasing hosting capacity: A win-win for solar and utilities

Each of these phases aligns with a different value proposition for smart inverters. The first phase is largely preventative, aimed at solving the kinds of problems that have forced costly upgrades to how inverters operate in solar-heavy Germany and Hawaii.

The key standard in question in the U.S. is IEEE 1547, which sets the rules for what grid-connected DERs must do to stay safe, such as trip offline when the grid goes down, or avoid overloading local transformers or circuits.

The old version of the standard, however, had a lot of restrictive rules on tripping off during relatively common voltage excursions, which could cause real problems on circuits with a lot of solar dropping off all at once.

Phase 1 implementation of IEEE 1547 is all about removing these barriers, Salas said. “They need to be stable, they need to be connected, they need to be able to support the grid.”

This should increase hosting capacity on circuits that would have otherwise been constrained by these unwelcome behaviors, he said.

Reactive power: Where utility and solar imperatives collide

The old versions of IEEE 1547 also didn’t provide rules for how inverters could use one of their more flexible capabilities: the ability to inject or absorb reactive power to mitigate voltage fluctuations, including those that may be caused by the PV itself. The new version opens up this capability, which could allow for an active application of reactive power to further increase hosting capacity, as well as solve other grid edge challenges for utilities.

But where utilities see opportunity, the solar industry sees a threat. Every unit of reactive power comes at the cost of a reduction in the real power output of solar inverters — and almost every solar installation out there is paid based on the real power it produces.

“If you’re tasked to do things that rob your energy sales, that will reduce compensation,” noted Ric O'Connell, executive director of the Oakland, Calif.-based GridLab. “And a lot of systems have third-party owners — the Sunruns, the Teslas — with growing Powerwall fleets — that have contracts, performance guarantees, and they want to get those financed. It’s harder to do that if there’s uncertainty in the future with curtailment."

“That’s the bottleneck right now,” said Daniel Munoz-Alvarez, a GTM Research grid edge analyst. “As we develop markets on the retail end for ...volt/VAR control to be compensated on the grid edge and that is compensated back to the customer, then the customer will be more willing to allow the utility to control their smart inverters or to allow some automation.”

But first, he said, “We need some agreed-upon functions.”

The future: Communications, controls and DER integration

The next stage of smart inverter functionality is establishing communications with the utility. After that, utilities will be able use them to monitor key DER data, or issue disconnect and reconnect commands in emergencies, as well as actively orchestrate other utility devices and systems through emerging virtual power plant strategies across their service areas.

This last area is where Salas sees the greatest opportunity to putting mass-market smart solar inverters to use. “If you want to maximize the DERs and what they can do, the need information from the grid. And DERs provide operational and capability information to the utility.”

Inverter makers have already been forced by California to enable the latest IEEE 1547 capabilities into their existing controls systems — but they are clearly embracing the role that their devices can play on the grid as well. Microinverter maker Enphase leveraged its work in Hawaii into a grid services business, seeking to provide data to utilities where they already had a significant number of installations. While Enphase has since scaled back dramatically, its main rival SolarEdge has taken up the same challenge, launching its own grid services arm earlier this summer.

Inverters have been technically capable of doing most of these things for a long time. But utilities and regulators have been waiting for the completion of IEEE 1547 to move forward decisively. Patrick Dalton, senior engineer for Xcel Energy, said his company’s utilities in Colorado and Minnesota are still several years away from mandating advanced inverter capabilities and are waiting for California’s energy transition example in order to choose a path forward.

In the meantime, it’s possible that Xcel's front-of-meter volt/VAR optimization investments in Colorado, including grid edge devices from startup Varentec, could solve many of the issues that have been addressed by smart inverter efforts in Hawaii and California, he noted.

The broader landscape for rolling out smart inverters for solar installations hasn’t changed much, with Hawaii and California still out ahead of the pack, while territories such as Puerto Rico microgrid rules evolve to support resilience. Arizona is the next most important state, with a high penetration of distributed solar, a contentious policy climate surrounding its proper treatment in future years, and a big smart inverter pilot from utility Arizona Public Service to inform stakeholders.

All told, eight separate smart inverter pilots are underway across eight states at present, according to GTM Research: Pacific Gas & Electric and San Diego Gas & Electric in California; APS and Salt River Project in Arizona; Hawaiian Electric in Hawaii; Duke Energy in North Carolina; Con Edison in New York; and a three-state pilot funded by the Department of Energy’s SunShot program and led by the Electric Power Research Institute.

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Site C Dam Electricity Demand underscores B.C.'s decarbonization path, enabling electrification of EVs, heat pumps, and industry, aligning with BC Hydro forecasts and 2030/2050 GHG targets to supply dependable, renewable baseload power.

Key Points

Projected clean power tied to Site C, driven by B.C. electrification to meet 2030 and 2050 greenhouse gas targets.

✅ Aligns with 25-30% by 2030 and 55-70% by 2050 GHG cuts

✅ Supports EVs, heat pumps, and industrial electrification

✅ Provides dependable baseload alongside efficiency gains

There are valid reasons not to build the Site C dam. There are also valid reasons to build it. One of the latter is the rapid increase in clean electricity needed to reduce B.C.’s greenhouse gas emissions from burning natural gas, gasoline, diesel and other harmful fossil fuel products.

Although former Premier Christy Clark casually avoided near-term emissions targets, Prime Minister Justin Trudeau has set Canadian targets for both 2030 and 2050, and cleaning up Canada's electricity is critical to meeting them. Studies by my research group at Simon Fraser University and other independent analysts show that B.C.’s cost-effective contribution to these national targets requires us to reduce our emissions 25 to 30 per cent by 2030 and 55 to 70 per cent by 2050 — an energy evolution involving, among other things, a much greater use of electricity in buildings, vehicles and industry.

Recent submissions to the Site C hearing have offered widely different estimates of B.C.’s electricity demand in the decade after the project’s completion in 2025, some arguing the dam’s output will be completely surplus to domestic need for years and perhaps decades, even though improved B.C.-Alberta grid links could help balance regional demand. Some of this variation in demand forecasts is understandable. Industrial demand is especially difficult to predict, dependent as it is on global economic conditions and shifting trade relations. And there are legitimate uncertainties about B.C. Hydro’s ability to reduce electricity demand by promoting efficient products and behaviour through its Power Smart program. But some of the forecasts appear to be deliberate exaggerations, designed to support fixed positions for or against Site C.

Our university-based research team models the energy system changes required to meet national and provincial emissions targets, and we have been comparing estimates of the electricity demand implications. These estimates are produced by academics, as well as by key institutions like B.C. Hydro, the National Energy Board, and the governments of Canada and B.C.

Most electricity forecasts for B.C., including the most recent by B.C. Hydro, do not assume that B.C. reduces its greenhouse gas emissions by 25 to 30 per cent by 2030 and 55 to 70 per cent by 2050. When we adjust Hydro’s forecast for just the low end of these targets, we find that in its latest, August 30, submission to the Site C hearing, which followed the premier’s over-budget go-ahead on the project, Hydro has underestimated the demand for its electricity by about three terawatt-hours in 2025, four in 2030 and 10 in 2035. Hydro’s forecast indicates that it will need the five terawatt-hours from Site C. Our research shows that even if Hydro’s demand forecast is too high, appropriate climate policy nationally and in B.C. will absorb all the electricity the dam can produce soon after its completion.

B.C. Hydro does not forecast electricity demand to 2050. But, studies by us and others show that B.C. electricity demand will be almost double today’s levels if we are to reduce emissions by 55 to 70 per cent, even amid a documented risk of missing the 2050 target, in just over three decades while our population, economy, buildings and equipment grow significantly. Most mid- and small-sized vehicles will be electric. Most buildings will be well insulated and heated by electric resistance or electric heat-pumps, either individually or via district heating systems. And many low temperature industrial applications will be electric.

Aggressive efforts to promote energy efficiency will make an important contribution, such that energy demand will not grow nearly as fast as the economy. But it is delusional to think that humans will stop using energy. Even climate policy scenarios in which we assume unprecedented success with energy efficiency show dramatic increases in the consumption of electricity, this being the most favoured zero-emission form of energy as a replacement for planet-destroying gasoline and natural gas.

The completion of the Site C dam is a complicated and challenging societal choice, and delay-related cost risks highlighted by the premier underscore the stakes. There is unbiased evidence and argument supporting either completion or cancellation. But let’s stick to the unbiased evidence. In the case of our 2030 and 2050 greenhouse gas reduction targets, such evidence shows that we must substantially increase our generation of dependable electricity. If the Site C dam is built, and if we are true to our climate goals, all its electricity will be used in B.C. soon after completion.

Mark Jaccard is a professor of sustainable energy in the School of Resource and Environmental Management at Simon Fraser University.

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Massachusetts Solar Net Metering faces new demand charges and elimination of residential time-of-use rates under an MDPU order, as Eversource cites grid cost fairness while clean energy advocates warn of impacts on distributed solar growth.

Key Points

Policy letting solar customers net out usage with exports; MDPU now adds demand charges and ends TOU rates.

✅ New residential solar demand charges start Dec 31, 2018.

✅ Optional residential TOU rates eliminated by MDPU order.

✅ Eversource cites grid cost fairness; advocates warn slower solar.

A recent Massachusetts Department of Public Utilities' rate case order changes the way solar net metering works and eliminates optional residential time-of-use rates, stirring controversy between clean energy advocates and utility Eversource and potential consumer backlash over rate design.

"There is a lot of room to talk about what net-energy metering should look like, but a demand charge is an unfair way to charge customers," Mark LeBel, staff attorney at non-profit clean energy advocacy organization Acadia Center, said in a Tuesday phone call. Acadia Center is an intervenor in the rate case and opposed the changes.

The Friday MDPU order implements demand charges for new residential solar projects starting on December 31, 2018. Such charges are based on the highest peak hourly consumption over the course of a month, regardless of what time the power is consumed.

Eversource contends the demand charge will more fairly distribute the costs of maintaining the local power grid, echoing minimum charge proposals aimed at low-usage customers. Net metering is often criticized for not evenly distributing those costs, which are effectively subsidized by non-net-metered customers.

"What the demand charge will do is eliminate, to the extent possible, the unfair cross subsidization by non-net-metered customers that currently exists with rates that only have kilowatt-hour charges and no kilowatt demand, Mike Durand, Eversource spokesman, said in a Tuesday email. 

"For net metered facilities that use little kilowatt-hours, a demand charge is a way to charge them for their fair share of the cost of the significant maintenance and upgrade work we do on the local grid every day," Durand said. "Currently, their neighbors are paying more than their share of those costs."

It will not affect existing facilities, Durand said, only those installed after December 31, 2018.

Solar advocates are not enthusiastic about the change and see it slowing the growth of solar power, particularly residential rooftop solar, in the state.

"This is a terrible outcome for the future of solar in Massachusetts," Nathan Phelps, program manager of distributed generation and regulatory policy at solar power advocacy group Vote Solar, said in a Tuesday phone call.

"It's very inconsistent with DPU precedent and numerous pieces of legislation passed in the last 10 years," Phelps said. "The commonwealth has passed several pieces of legislation that are supportive of renewable energy and solar power. I don't know what the DPU was thinking."

 

TIME-OF-USE PRICING ELIMINATED

It does not matter when during the month peak demand occurs -- which could be during the week in the evening -- customers will be charged the same as they would on a hot summer day, LeBel said. Because an individual customer's peak usage does not necessarily correspond to peak demand across the utility's system, consumers are not being provided incentives to reduce energy usage in a way that could benefit the power system, Acadia Center said in a Tuesday statement.

However, Eversource maintains that residential customer distribution peaks based on customer load profiles do not align with basic service peak periods, which are based on Independent System Operator New England's peaks that reflect market-based pricing, even as a Connecticut market overhaul advances in the region, according to the MDPU order.

"The residential Time of Use rates we're eliminating are obsolete, having been designed decades ago when we were responsible for both the generation and the delivery of electricity," Eversource's Durand said.

"We are no longer in the generation business, having divested of our generation assets in Massachusetts in compliance with the law that restructured of our industry back in the late 1990s. Time Varying pricing is best used with generation rates, where the price for electricity changes based on time of day and electricity demand and can significantly alter electric bills for households," he said.

Additionally, only 0.02% of residential customers take service on Eversource's TOU rates and it would be difficult for residential customers to avoid peak period rates because they do not have the ability to shift or reduce load, according to the order.

"The Department allowed the Companies' proposal to eliminate their optional residential TOU rates in order to consolidate and align their residential rates and tariffs to better achieve the rate structure goal of simplicity," the MDPU said in the order.

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Crouching Yeti APT targets energy infrastructure with watering-hole attacks, compromising servers to steal credentials and stage intrusions; Kaspersky Lab links the Energetic Bear group to ICS threats across Russia, US, Europe, and Turkey.

Key Points

Crouching Yeti APT, aka Energetic Bear, is a threat group that targets energy firms using watering-hole attacks.

✅ Targets energy infrastructure via watering-hole compromises

✅ Uses open-source tools and backdoored sshd for persistence

✅ Scans global servers to stage intrusions and steal credentials

A hacker collective known for attacking industrial companies around the world have had some of their infrastructure identified by Russian security specialists.

Kaspersky Lab said that it has discovered a number of servers compromised by the group, belonging to different organisations based in Russia, the US, and Turkey, as well as European countries.

The Russian-speaking hackers, known as Crouching Yeti or Energetic Bear, mostly focus on energy facilities, as seen in reports of infiltration of the U.S. power grid targeting critical infrastructure, for the main purpose of stealing valuable data from victim systems.

Hacked servers

Crouching Yeti is described as an advanced persistent threat (APT) group that Kaspersky Lab has been tracking since 2010.

#google#

Kaspersky Lab said that the servers it has compromised are not just limited to industrial companies. The servers were hit in 2016 and 2017 with different intentions. Some were compromised to gain access to other resources or to be used as intermediaries to conduct attacks on other resources.

Others, including those hosting Russian websites, were used as watering holes.

It is a common tactic for Crouching Yeti to utilise watering hole attacks where the attackers inject websites with a link redirecting visitors to a malicious server.

“In the process of analysing infected servers, researchers identified numerous websites and servers used by organisations in Russia, US, Europe, Asia and Latin America that the attackers had scanned with various tools, possibly to find a server that could be used to establish a foothold for hosting the attackers’ tools and to subsequently develop an attack,” said the security specialists in a blog posting.

“The range of websites and servers that captured the attention of the intruders is extensive,” the firm said. “Kaspersky Lab researchers found that the attackers had scanned numerous websites of different types, including online stores and services, public organisations, NGOs, manufacturing, etc.

Kaspersky Lab said that the hackers used publicly available malicious tools, designed for analysing servers, and for seeking out and collecting information. The researchers also found a modified sshd file with a preinstalled backdoor. This was used to replace the original file and could be authorised with a ‘master password’.

“Crouching Yeti is a notorious Russian-speaking group that has been active for many years and is still successfully targeting industrial organisations through watering hole attacks, among other techniques,” explained Vladimir Dashchenko, head of vulnerability research group at Kaspersky Lab ICS CERT.

Russian government?

“Our findings show that the group compromised servers not only for establishing watering holes, but also for further scanning, and they actively used open-sourced tools that made it much harder to identify them afterwards,” he said.

“The group’s activities, such as initial data collection, the theft of authentication data, and the scanning of resources, are used to launch further attacks,” said Dashchenko. “The diversity of infected servers and scanned resources suggests the group may operate in the interests of the third parties.”

This may well tie into a similar conclusion from a rival security vendor.

In 2014 CrowdStrike claimed that the ‘Energetic Bear’ group was also tracked in Symantec's Dragonfly research and had been hacking foreign companies on behalf of the Russian state.

The security vendor had said the group had been carrying out attacks on foreign companies since 2012, with reports of breaches at U.S. power plants that underscored the campaign, and there was evidence that these operations were sanctioned by the Russian government.

Last month the United States for the first time publicly accused Russia in a condemnation of Russian grid hacking of attacks against the American power grid.

Symantec meanwhile warned last year of a resurgence in cyber attacks on European and US energy companies, including reports of access to U.S. utility control rooms that could result in widespread power outages.

And last July the UK’s National Cyber Security Centre (NCSC) acknowledged it was investigating a broad wave of attacks on companies in the British energy and manufacturing sectors.

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Dewa-China Renewable Energy Partnership advances solar, clean energy, smart grid, 5G, cloud, and Big Data, linking Dewa with Hanergy and Huawei for R&D, smart meters, demand management, and resilient network infrastructure.

Key Points

A Dewa collaboration with Hanergy and Huawei to co-develop solar, smart grid, 5G, cloud, and resilient utility networks.

✅ MoU expands solar PV and distributed generation in Dubai and China

✅ Smart grid R&D: smart meters, demand response, self-healing networks

✅ 5G, cloud, and Big Data enable secure, scalable smart city services

A high-level delegation from Dubai Electricity and Water Authority (Dewa) recently visited China in bid to build closer ties with Chinese renewable and clean energy and smart services and smart grid companies, amid broader power grid modernization in Asia trends.

The team led by the managing director and CEO Saeed Mohammed Al Tayer visited the headquarters of Hanergy Holding Group, one of the largest international companies in alternative and renewable energy, in Beijing.

The visit complements the co-operation between Dewa and Hanergy after the signing MoU between the two sides last May, said a statement from Dewa.

The two parties focused on renewable and clean energy and its development, including efforts to integrate solar into the grid through advanced programs, and enhancing opportunities for joint investment.

Al Tayer also visited the Exhibition Hall and Exhibition Centre of the Hanergy Clean Energy Exhibition spread over a 7,000-sq-m area at the Beijing Olympic Park.

He discussed solar power technologies and applications, which included integrated photovoltaic panels and their distribution on the roofs of industrial and residential buildings, residential and mobile power systems, micro-grid installations in remote regions, solar-powered vehicles, and various elements of the exhibition.

Al Tayer and the accompanying delegation later visited the Beijing R&D Centre, which is one of Huaweis largest research institutes, known for Huawei smart grid initiatives across global markets, that employs over 12,000 people. The centre covers the latest pre-5G solutions, Cloud, Big Data, as well as vertical solutions for a smart and safe city.

"The visit is part of a joint venture with Huawei, which includes R&D projects to develop smart network infrastructures and various mechanisms and technologies, aligned with recent U.S. grid improvement funding initiatives, such as smart meters for electricity and water services, energy demand management, and self-recovery mechanisms from errors and disasters," he added.

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EV Charging Infrastructure Incentives are expanding as utilities fund public chargers, Level 2 networks, DC fast charging, grid-managed off-peak programs, and equitable access across Ohio, New Jersey, and Florida to accelerate clean transportation.

Key Points

Utility-backed programs funding Level 2 and DC fast chargers, managing grid demand, and expanding EV equity.

✅ Incentives for Level 2 and DC fast public charging stations.

✅ Grid-friendly off-peak charging to balance demand.

✅ Equity targets place chargers in low-income communities.

Electric providers in Florida, Ohio and New Jersey recently announced plans to expand electric vehicle charging networks and infrastructure through various incentive programs that could add thousands of new public chargers in the next several years.

Elsewhere, utilities are advancing similar efforts, with Michigan EV programs proposing more than $20 million for charging infrastructure to accelerate adoption.

American Electric Power in Ohio will offer nearly $10 million in incentives toward the build out of 375 EV charging stations throughout the company's service territory, which largely includes Columbus.

Meanwhile, the Public Service Electric and Gas Company (PSE&G), an electric utility provider in New Jersey, has proposed a six-year plan to support the development of nearly 40,000 electric vehicle chargers across a wide range of customers and sectors, said Francis Sullivan, a spokesperson for PSE&G.

And Duke Energy in Florida is installing up to 530 EV charging stations across its service area, as part of its Park and Plug pilot program, which will be making the charging ports available in multifamily housing complexes, workplaces and other high traffic areas.

"We are bringing cleaner energy to Florida through 700 megawatts of new universal solar, and we are helping our customers to bring clean transportation to the state as well," Catherine Stempien, Duke Energy Florida president, said in a statement. "We are committed to providing smarter, cleaner energy alternatives for all our customers."

The project in Ohio is making incentive funding available to government organizations, multifamily housing developments and workplaces, covering from 50 percent to all of the costs. The plan, to be rolled out in the next four years, aims to incentivize the development of 300 level-two chargers and 75 "fast chargers" capable of charging a car's battery in minutes rather than hours.

"I think what's interesting about what we're seeing now in the industry is that electric vehicles and electric vehicle charging are expanding beyond California, and like other Pacific Coast states," said Scott Fisher, vice president of marketing at Greenlots, maker of car chargers and software. Greenlots has been selected as one of the companies to provide the chargers for the AEP project.

California has occupied the lion's share of the electric vehicle market, making up about 5 percent of the cars on the state's highways. The U.S. market sits at about 1.5 percent. However, indications show the EV boom may be set to take off as more models are being rolled out, and prices are making the electric cars more competitive with their gas-powered counterparts. The group Securing America's Future Energy (SAFE) announced the one-millionth electric vehicle is on course to be sold in the United States this month.

In a statement, Ben Prochazka, vice president of the Electrification Coalition, an EV advocacy group, called this "a major milestone and brings us one step closer to reducing our transportation system's dependence on oil. This is a direct result of the tireless efforts by communities and advocates throughout the 'EV ecosystem.'"

In New Jersey, PSE&G's efforts -- which are part of the company's proposed Clean Energy Future program -- will not only focus on building out the charging infrastructure, but structure car recharging to control charging and encourage residents to charge their cars during off-peak times.

"For now, with a modest number of charging stations in the market, it's not a huge problem. But over time, as you're putting in many thousands of these stations, what you want to make sure is that those stations are operating in sync with state power grids, where you don't have people all charging at the same time at like 5 p.m. on a hot summer day," said Fisher.

PSE&G also plans to offer incentives to encourage the development of level-two chargers and DC fast-chargers, as well as "provide grants and incentives for 100 electric school buses and EV charging infrastructure at school districts in PSE&G's service territory," said Sullivan.

"PSE&G will also help fund electrification projects at customer locations such as ports, airports and transit facilities," Sullivan added, via email.

Utilities and transportation planners are also keeping the concept of equity in mind -- to ensure EVs are adopted by more than just the Tesla owner -- and will also focus on placing infrastructure in low-income areas.

"Ten percent of the stations will be in low income areas, defined by census blocks," said Scott Blake, a communications consultant at AEP in Columbus.

Duke Energy also announced 10 percent of the chargers it is installing in Florida will be in "income-qualified communities," according to a company press release.

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