Smart grid gets test at Maui resort

By Fresno Bee


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A four-square-mile patch of Maui in the nation's most fossil-fuel dependent state soon will be home to a new kind of power grid, one that saves energy by turning off household appliances when electricity is expensive and makes better use of wind and solar power.

General Electric Co. recently announced it would test its "smart grid" technology in the luxury resort community of Wailea, hoping to reduce peak electricity consumption there by 15 percent by 2012.

Planners envision installing a new kind of power meter in homes - a wall-based unit that can monitor how much electricity is being used by various appliances and turn them off at peak times during the day or night when demand for energy is higher, and thus costlier to consume. The project also would upgrade the utility's computer systems so that it can integrate more renewable energy.

There are about 70 smart grid pilots nationwide, including Miami, Seattle, Houston and Boulder, Colo. But Wailea is one of the only resort communities where the test is being conducted.

"There's a lot of opportunities for us to improve our knowledge of what's using power, and making it easier for us to shut off the power when we're not around," said Bob Gilligan, vice president for transmission at GE Energy. "Most consumers aren't really aware of how much energy they're using at any time of day."

For example, if customers knew what times electricity was most expensive, they could automatically adjust air conditioning and refrigerator temperatures, or they could choose to delay turning on the dishwasher until power demand drops.

That would save money for power users. It would also reduce the strain on the grid, allowing the electric utility to absorb more renewable energy from wind turbines and solar panels.

Located on the slopes of Haleakala, Wailea was chosen for the smart grid because rapid construction growth in the area and its isolation make it a fertile testing ground, said Peter Rosegg, spokesman for Hawaiian Electric Co., a shareholder-owned utility and the parent of Maui Electric Co.

"Eventually, advanced metering and the smart grid will be all across the country," Rosegg said. "They can learn a lot here on a small, easily manageable grid."

Half of the $14 million Maui project is paid for with a federal Department of Energy grant, with the rest of the resources and personnel contributed by General Electric and Hawaiian Electric. The pilot is being treated as part of the federal economic recovery package, which included $4.5 billion for smart grid development.

If Hawaiian Electric later decides to buy similar technology for use in other areas, it would have to put the project out to bid, with GE being one of the likely competitors. Other grid technology providers nationwide include ABB North America and Xcel Energy.

Hawaii remains the nation's most fossil-fuel dependent state, with imports supplying about 90 percent of its power needs.

Meanwhile, it's difficult for Hawaii power utilities to take on much more renewable electricity because of its unpredictable nature - the wind has to blow or the sun needs to shine, meaning old-fashioned, oil-fueled generators have to stay online to ensure power keeps flowing.

"The challenge of renewables is that they're not there when you want them," said Ted Peck, Hawaii's energy administrator, who organizes the state's efforts toward using more renewables. "The smart grid is able to manage when that energy gets to the load."

The smart grid would help integrate additional clean energy into the grid through computers that could quickly manage Maui's power needs, adding and subtracting alternative power sources when desired.

"It will give the utility another knob to turn when wind suddenly calms on an afternoon, or when people are coming home and turning on their air conditioning," said Devon Manz, an engineer at GE's Global Research Center.

Maui's independent power grid provides about 200 megawatts of electricity across the island during peak times, with its largest wind facility, Kaheawa wind farm, able to produce up to 30 megawatts within the current system.

Separate from GE's smart grid, another test project at Kaheawa aims to store and distribute 1 megawatt of renewable power using a large battery, said Noe Kalipi, director of government and community relations for First Wind, which runs the Kaheawa wind farm. Batteries and other electricity storage technologies will make natural energy more feasible to power utilities.

"We're all at the point of figuring out how to integrate more renewable energy," Kalipi said.

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Electricity prices in Germany nearly doubled in a year

Germany Energy Price Hikes are driving electricity tariffs, gas prices, and heating costs higher as wholesale markets surge after the Ukraine invasion; households face inflationary pressure despite relief measures and a renewables levy cut.

 

Key Points

Germany Energy Price Hikes reflect surging power and gas tariffs from wholesale spikes, prompting relief measures.

✅ Electricity tariffs to rise 19.5% in Apr-Jun

✅ Gas tariffs up 42.3%; heating and fuel costs soar

✅ Renewables levy ends July; saves €6.6 billion yearly

 

Record prices for electricity and gas in Germany will continue to rise in the coming months, the dpa agency, citing estimates from the consumer portal Verivox.

According to him, electricity suppliers and local utilities, in whose area of ​​responsibility there are 13 million households, made an announcement of tariff increases in April, May and June by 19.5%. Gas tariffs increased by an average of 42.3%.

According to Verivox, electricity prices in Germany have approximately doubled over the year - a pattern seen as European electricity prices rose more than double the EU average - if previously a household with a consumption of 4,000 kWh paid 1,171 euros a year, now the amount has risen to 1,737 euros. Gas prices have risen even more, though European gas prices later returned to pre-Ukraine war levels: last year, a household with a consumption of 20,000 kWh paid 1,184 euros in annual terms, and now it is 2,787 euros. 

Energy costs for the average German household are 52 percent higher than a year ago, adding to EU inflation pressures, according to energy contract sales website Check24. In a press release, the company said the wholesale electricity price was at €122.93 per megawatt-hour in February 2022, compared to €49 this time last year, while in the United States US electricity prices climbed at the fastest pace in 41 years. In addition, electricity prices on the power exchange haven been rising rapidly since Russian troops invaded Ukraine, comparison portal Strom Report said. Costs for heating rose the most, triggered by the high gas price (105 euros per megawatt-hour on the wholesale market) and around 100 USD per barrel of oil – its highest price since 2014. Driving also became more expensive with costs for petrol up 25 percent and diesel 30 percent, Check24 said.

The German government has decided on relief measures for low-income households, including a 200 billion euro energy shield, in response to high consumer energy costs. In July, it will abolish the renewables levy on the power price, saving consumers around €6.6 billion annually. In a reform proposal released this week, the ministry for economy and climate also detailed how it will legally oblige power suppliers to reduce their power bills when the levy is abolished.

 

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Wind Denmark - Danish electricity generation sets a new green record

Denmark 2019 electricity CO2 intensity shows record-low emissions as renewable energy surges, wind power dominates, offshore wind expands, and coal phase-out accelerates Denmark's energy transition and grid decarbonization, driven by higher CO2 prices and flexibility.

 

Key Points

It is 135 g CO2/kWh, a record low enabled by wind power growth, offshore wind, and a sharp coal decline.

✅ Average emissions fell to 135 g CO2/kWh, the lowest on record

✅ Wind and solar supplied 49.9% of national electricity use

✅ Coal consumption dropped 46% as CO2 allowance prices rose

 

Danish electricity producers set a new green record in 2019, when an average produced kilowatt-hour emitted 135 gr CO2 / kWh.

It is the lowest CO2 emission ever measured in Denmark and about one-seventh of what the electricity producers emitted in 1990.

Never has a kilowatt-hour produced emitted as little CO2 as it did in 2019. And that's according to Energinet's recently published annual Environmental Report on Danish electricity generation and cogeneration, two primary causes.

One reason is that more green power has been produced because the Horns Rev 3 offshore wind farm, which can produce electricity for 425,000 households, was commissioned in 2019. The other is that Danish coal consumption fell by 46 percent from 2018 to 2019, as coal phase-out plans gathered pace across the sector. the dramatic decline in coal consumption is partly due a significant increase in the price of CO2 quotas, and thus also the price of CO2 emissions.

'Historically, 135 gr CO2 / kWh is a really, really low figure, showing the impressive green travel that the Danish electricity system has been on. In 1990, a kilowatt-hour produced emitted over 1000 grams of CO2, ie about seven times as much as today, 'says Hanne Storm Edlefsen, area manager in Energinet Power Systems Responsibility.

Wind energy is the dominant form of electricity generation in Denmark, a pattern the UK wind beat coal in 2016 when shifting away from fossil fuels.

17.1 TWh. Danish wind turbines and solar cells generated so much electricity in 2019, corresponding to 49.9 per cent. of Danish electricity consumption, reflecting broader EU wind and solar growth trends as well. An increase of 15 per cent. The wind turbines alone produced 16 TWh, which is not only a new green record, but also puts a thick line that wind energy is by far the most dominant form of electricity generation in Denmark.

'Thanks to our large wind resources, turbines are by far the largest supplier of renewable energy in Denmark, and this will be for many years to come. The large price drop in new wind energy in recent years - for both onshore and offshore winds - will ensure that wind energy will drive a large part of the growth in renewable energy in the coming years, as new wind generation records are set in markets like the UK, 'says Soren Klinge, electricity market manager at Wind Denmark.

Conversely, total electricity generation from fossil and bio-based fuels decreased by 26 PJ (petajoule ed.), Corresponding to 34 per cent. from 2018 to 2019, mirroring renewables overtaking coal in Germany. Nevertheless, net electricity generation was just under 30 TWh both years.

'It is worth noting that while fossil fuels are being phased out, Denmark maintains its annual net production of electricity. The green, so to speak, replaces the black. It once again underpins that green conversion, high security of supply and an affordable electricity price can go hand in hand, 'says Hanne Storm Edlefsen.

Danish power system is ready for a green future

Including trade in electricity with neighboring countries, 1 kWh in a Danish outlet generates 145 gr CO2 / kWh.

'There has been a very significant development in the Danish electricity system in recent years, where the electricity system can now be operated solely on the renewable energy. It is a remarkable development, also from an international perspective where low-carbon progress stalled in the UK in 2019, that one would not have thought possible for just a few years ago, 'he says.

More than expected have phased out coal

The electricity from the Danish sockets will be greener , predicts Energinet's environmental report , which expects CO2 intensity in the coming years. This is explained by an expectation of increased electrification of energy consumption, together with a continued expansion with wind and solar.

'Wind energy is the cornerstone of the green transition. With the commissioning of the Kriegers Flak offshore wind farm and several major onshore wind turbine projects within the next few years, we can well expect that only the wind's share of electricity consumption will exceed 50 per cent hopefully as early as 2021,' concludes Soren Klinge.

 

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Mike Sangster to Headline Invest in African Energy Forum

TotalEnergies Africa Energy Strategy 2025 spotlights oil, gas, LNG, and renewables, with investments in Namibia, Congo, Mozambique, Uganda, Morocco, and South Africa, driving upstream growth, clean energy, and energy transition partnerships.

 

Key Points

An investment roadmap uniting oil, gas, LNG, and renewables to speed Africa's upstream growth and energy transition.

✅ Keynote by Mike Sangster at IAE Paris 2025.

✅ Oil, gas, LNG projects across Namibia, Congo, Mozambique, Uganda.

✅ Scaling renewables: solar, wind, green ammonia for export.

 

Mike Sangster, Senior Vice President for Africa at TotalEnergies, will play a pivotal role in the upcoming Invest in African Energy (IAE) Forum, which will take place in Paris on May 13-14, 2025. As a key figure in one of the world’s largest energy companies, Sangster's participation in the forum is expected to offer crucial insights into Africa’s evolving energy landscape, particularly in the areas of oil, gas, and renewable energy.

TotalEnergies' Role in Africa's Energy Landscape

TotalEnergies has long been a major player in Africa’s energy sector, driving development across both emerging and established markets. The company has a significant footprint in countries such as Namibia, the Republic of Congo, Libya, Mozambique, Uganda, and South Africa. TotalEnergies’ investments span both traditional oil and gas projects as well as renewable energy initiatives, reflecting its commitment to a more diversified energy future for Africa.

In Namibia, for instance, TotalEnergies is advancing its Venus-1 discovery, with plans to produce its first oil by the end of the decade. The company is also heavily involved in the Orange Basin exploration. Meanwhile, in the Republic of Congo, TotalEnergies is investing $600 million to enhance deepwater production at its Moho Nord field.

Beyond oil and gas, the company is expanding its renewable energy portfolio across the continent. This includes significant solar, wind, and hydropower projects, such as the 500 MW Sadada solar project in Libya, a 216 MW solar plant with battery storage in South Africa, and a 1 GW wind and solar project in Morocco designed to produce green ammonia for export.

The Invest in African Energy Forum

The IAE Forum, which TotalEnergies’ Sangster will headline, is an exclusive event aimed at facilitating investment between African energy markets and global investors, including discussions on COVID-19 funding for electricity access mechanisms that emerged, and their relevance to current capital flows. With a focus on fostering partnerships and discussions about the future of energy in Africa, the event will bring together industry experts, project developers, investors, and policymakers for two days of intensive engagement.

The forum will also serve as a crucial platform for sharing perspectives on the role of private investment, as outlined in the IEA investment outlook for Africa's power systems, in Africa’s energy future, strategies for unlocking new upstream opportunities, and the transition to a more sustainable energy system. This makes Sangster's participation, as someone directly involved in both conventional and renewable energy projects across the continent, particularly significant.

TotalEnergies' Diversified Strategy in Africa

Sangster’s keynote address and participation in an exclusive fireside chat will provide an in-depth look into TotalEnergies’ strategy for Africa. His insights will touch upon the company's ongoing projects in the oil and gas sectors, as well as its renewable energy investments. TotalEnergies has committed to making its portfolio more sustainable, underscored by its recent VSB acquisition to expand renewables capabilities, while continuing to be a leader in the energy transition.

One of the company’s notable projects is the Mozambique LNG initiative, a $20 billion venture aimed at supplying liquefied natural gas to international markets. Additionally, TotalEnergies is gearing up for the first oil from its Tilenga field in Uganda, which will be transported through the East African Crude Oil Pipeline (EACOP), the longest heated crude oil pipeline in the world.

In South Africa, TotalEnergies is constructing one of the largest renewable energy projects, a 216 MW solar power plant with integrated battery storage. This project is expected to significantly contribute to the country’s clean energy ambitions. Furthermore, in Morocco, TotalEnergies is developing a major wind and solar facility that will produce green ammonia, aligning with its broader strategy to provide solutions for Europe’s energy needs.

Africa’s Energy Transition

The forum’s timing could not be more critical, given the pressing need for an energy transition in Africa. While the continent remains heavily reliant on fossil fuels for its energy needs, there is growing momentum toward incorporating renewable energy sources, a point reinforced by the IRENA renewables report on decarbonisation and quality of life, which highlights the transformative potential. Africa’s vast natural resources, combined with global investments and partnerships, position the continent as a key player in the global shift toward sustainable energy.

However, Africa faces unique challenges in transitioning to renewable energy, reflecting a broader Sub-Saharan electricity challenge that also presents opportunity, across many markets. These challenges include a lack of infrastructure, financial constraints, and the need for increased political stability in certain regions. The IAE Forum provides an opportunity to address these barriers, with industry leaders like Sangster offering solutions based on real-world experiences and investments.

As the energy sector continues to evolve globally, and even if electricity systems are unlikely to go fully green this decade according to some outlooks, Africa's potential remains vast. The continent’s diverse energy resources, from oil and gas to renewables, offer a unique opportunity to build a more sustainable and resilient energy future. The Invest in African Energy Forum serves as an important platform for global stakeholders to collaborate, learn, and invest in the energy transformation taking place across the continent.

Mike Sangster’s insights at the forum will undoubtedly shape discussions on how companies like TotalEnergies are navigating the intersection of universal electricity access goals, sustainability, and economic growth in Africa. With Africa’s energy needs expected to increase exponentially in the coming decades, ensuring that these needs are met sustainably and equitably will be a priority for both policymakers and private investors.

As the global energy landscape continues to shift, the Invest in African Energy Forum provides a critical space for shaping the future of Africa’s energy sector, offering invaluable opportunities for investment, innovation, and collaboration.

 

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Indian government takes steps to get nuclear back on track

India Nuclear Generation Shortfall highlights missed five-year plan targets due to uranium fuel scarcity, commissioning delays at Kudankulam, PFBR slippage, and PHWR equipment bottlenecks under IAEA safeguards and domestic supply constraints.

 

Key Points

A gap between planned and actual nuclear output due to fuel shortages, reactor delays, and first-of-a-kind hurdles.

✅ Fuel scarcity pre-2009-10 constrained unsafeguarded reactors.

✅ Kudankulam delays from protests, litigation, and remobilisation.

✅ FOAK PHWR equipment bottlenecks and PFBR slippage.

 

A lack of available domestically produced nuclear fuel and delays in constructing and commissioning nuclear power plants, including first-of-a-kind plants and the Prototype Fast Breeder Reactor (PFBR), meant that India failed to meet its nuclear generation targets under the governmental plans over the decade to 2017, even as global project milestones were being recorded elsewhere.

India's nuclear generation target under its 11th five-year plan, covering the period 2007-2012, was 163,395 million units (MUs) and the 12th five-year Plan (2012-17) was 241,748 MUs, Minister of state for the Department of Atomic Energy and the Prime Minister's Office Jitendra Singh told parliament on 6 February. Actual nuclear generation in those periods was 109,642 MUs and 183,488 MUs respectively, Singh said in a written answer to questions in the Lok Sabah.

Singh attributed the shortfall in generation to a lack of availability of the necessary quantities of domestically produced fuel during the three years before 2009-2010; delays to the commissioning of two 1000 MWe nuclear power plants at Kudankulam due to local protests and legal challenges; and delays in the completion of two indigenously designed pressurised heavy water reactors and the PFBR.

Kudankulam 1 and 2 are VVER-1000 pressurised water reactors (PWRs) supplied by Russia's Atomstroyexport under a Russian-financed contract. The units were built by Nuclear Power Corporation of India Ltd (NPCIL) and were commissioned and are operated by NPCIL under International Atomic Energy Agency (IAEA) safeguards, with supervision from Russian specialists, while China's nuclear program advanced on a steady development track in the same period. Construction of the units - the first PWRs to enter operation in India - began in 2002.

Singh said local protests resulted in the halt of commissioning work at Kudankulam for nine months from September 2011 to March 2012, when he said project commissioning had been at its peak. As a consequence, additional time was needed to remobilise the workforce and contractors, he said. Litigation by anti-nuclear groups, and compliance with supreme court directives, impacted commissioning in 2013, he said. Unit 1 entered commercial operation in December 2014 and unit 2 in April 2017.

Delays in the manufacture and supply by domestic industry of critical equipment for first-of-a-kind 700 MWe pressurised heavy water reactors -  Kakrapar units 3 and 4, and Rajasthan units 7 and 8 - has led to delays in the completion of those units, the minister said, as well as noting the delay in completion of the PFBR, which is being built at Kalpakkam by Bhavini. In answer to a separate question, Singh said the PFBR is in an "advance stage of integrated commissioning" and is "expected to approach first criticality by the year 2020."

Eight of India's operating nuclear power plants are not under IAEA safeguards and can therefore only use indigenously-sourced uranium. The other 14 units operate under IAEA safeguards and can use imported uranium. The Indian government has taken several measures to secure fuel supplies for reactors in operation and under construction, amid coal supply rationing pressures elsewhere in the power sector, concluding fuel supply contracts with several countries for existing and future reactors under IAEA Safeguards and by "augmentation" of fuel supplies from domestic sources, Singh said.

Kakrapar 3 and 4, with Kakrapar 3 criticality already reported, and Rajasthan 7 and 8 are all currently expected to enter service in 2022, according to World Nuclear Association information.

 

Joint venture discussions

In February 2016 the government amended the Atomic Energy Act to allow NPCIL to form joint venture companies with other public sector undertakings (PSUs) for involvement in nuclear power generation and possibly other aspects of the fuel cycle, reflecting green industrial strategies shaping future reactor waves globally. In answer to another question, Singh confirmed that NPCIL has entered into joint ventures with NTPC Limited (National Thermal Power Corporation, India's largest power company) and Indian Oil Corporation Limited. Two joint venture companies - Anushakti Vidhyut Nigam Limited and NPCIL-Indian Oil Nuclear Energy Corporation Limited - have been incorporated, and discussions on possible projects to be set up by the joint venture companies are in progress.

An exploratory discussion had also been held with Oil & Natural Gas Corporation, Singh said. Indian Railways - which has in the past been identified as a potential joint venture partner for NPCIL - had "conveyed that they were not contemplating entering into an MoU for setting up of nuclear power plants," Singh said.

 

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Baltic States Disconnect from Russian Power Grid, Join EU System

Baltic States EU Grid Synchronization strengthens energy independence and electricity security, ending IPS/UPS reliance. Backed by interconnectors like LitPol Link, NordBalt, and Estlink, it aligns with NATO interests and safeguards against subsea infrastructure threats.

 

Key Points

A shift by Estonia, Latvia, and Lithuania to join the EU grid, boosting energy security and reducing Russian leverage.

✅ Synchronized with EU grid on Feb 9, 2025 after islanding tests.

✅ New interconnectors: LitPol Link, NordBalt, Estlink upgrades.

✅ Reduces IPS/UPS risks; bolsters NATO and critical infrastructure.

 

In a landmark move towards greater energy independence and European integration, the Baltic nations of Estonia, Latvia, and Lithuania have officially disconnected from Russia's electricity grid, a path also seen in Ukraine's rapid grid link to the European system. This decisive action, completed in February 2025, not only ends decades of reliance on Russian energy but also enhances the region's energy security and aligns with broader geopolitical shifts.

Historical Context and Strategic Shift

Historically, the Baltic states were integrated into the Russian-controlled IPS/UPS power grid, a legacy of their Soviet past. However, in recent years, these nations have sought to extricate themselves from Russian influence, aiming to synchronize their power systems with the European Union (EU) grid. This transition gained urgency following Russia's annexation of Crimea in 2014 and further intensified after the invasion of Ukraine in 2022, as demonstrated by Russian strikes on Ukraine's grid that underscored energy vulnerability.

The Disconnection Process

The process culminated on February 8, 2025, when Estonia, Latvia, and Lithuania severed their electrical ties with Russia. For approximately 24 hours, the Baltic states operated in isolation, conducting rigorous tests to ensure system stability and resilience, echoing winter grid protection efforts seen elsewhere. On February 9, they successfully synchronized with the EU's continental power grid, marking a historic shift towards European energy integration.

Geopolitical and Security Implications

This transition holds significant geopolitical weight. By disconnecting from Russia's power grid, the Baltic states reduce potential leverage that Russia could exert through energy supplies. The move also aligns with NATO's strategic interests, enhancing the security of critical infrastructure in the region, amid concerns about Russian hacking of US utilities that highlight cyber risks.

Economic and Technical Challenges

The shift was not without challenges. The Baltic states had to invest heavily in infrastructure to ensure compatibility with the EU grid and navigate regional market pressures such as a Nordic grid blockade affecting transmission capacity. This included constructing new interconnectors and upgrading existing facilities. For instance, the LitPol Link between Lithuania and Poland, the NordBalt cable connecting Lithuania and Sweden, and the Estlink between Estonia and Finland were crucial in facilitating this transition.

Impact on Kaliningrad

The disconnection has left Russia's Kaliningrad exclave isolated from the Russian power grid, relying solely on imports from Lithuania. While Russia claims to have measures in place to maintain power stability in the region, the long-term implications remain uncertain.

Ongoing Security Concerns

The Baltic Sea region has experienced heightened security concerns, particularly regarding subsea cables and pipelines. Increased incidents of damage to these infrastructures have raised alarms about potential sabotage, including a Finland cable damage investigation into a suspected Russian-linked vessel. Authorities continue to investigate these incidents, emphasizing the need for robust protection of critical energy infrastructure.

The successful disconnection and synchronization represent a significant step in the Baltic states' journey towards full integration with European energy markets. This move is expected to enhance energy security, promote economic growth, and solidify geopolitical ties with the EU and NATO. As the region continues to modernize its energy infrastructure, ongoing vigilance against security threats will be paramount, as recent missile and drone attacks on Kyiv's grid demonstrate.

The Baltic states' decision to disconnect from Russia's power grid and synchronize with the European energy system is a pivotal moment in their post-Soviet transformation. This transition not only signifies a break from historical dependencies but also reinforces their commitment to European integration and collective security. As these nations continue to navigate complex geopolitical landscapes, their strides towards energy independence serve as a testament to their resilience and strategic vision.

 

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Are we ready for electric tractors?

Electric tractors are surging, with battery-powered models, grid-tethered JD GridCON, and solar-charged designs delivering autonomous guidance, high efficiency, low maintenance, quiet operation, robust PTO compatibility, and durability for sustainable, precision agriculture.

 

Key Points

Electric tractors use battery or grid power to run implements with high efficiency, low noise, and minimal maintenance.

✅ Battery, grid-tethered, or solar-charged power options

✅ Lower operating costs, reduced noise, fewer moving parts

✅ Autonomous guidance, PTO compatibility, and quick charging

 

Car and truck manufacturers are falling off the fossil fuel bandwagon in droves and jumping on the electric train.

Now add tractors to that list.

Every month, another e-tractor announcement comes across our desks. Environmental factors drive this trend, along with energy efficiency, lower maintenance, lower noise level and motor longevity, and even autonomous weed-zapping robots are emerging.

Let’s start with the Big Daddy of them all, the 400 horsepower JD GridCON. This tractor is not a hybrid and it has no hassle with batteries. The 300 kilowatts of power come to the GridCON through a 1,000 metre extension cord connected to the grid, including virtual power plants or an off-field generator. A reel on the tractor rolls the cable in and out. The cable is guided by a robotic arm to prevent the tractor from running over it.

It uses a 700 volt DC bus for electric power distribution onboard and for auxiliary implements. It uses a cooling infrastructure for off-board electrical use. Total efficiency of the drive train is around 85 percent. A 100 kilowatt electric motor runs the IVT transmission. There’s an auxiliary outlet for implements powered by an electric motor up to 200 kW.

GridCON autonomously follows prescribed routes in the field at speeds up to 12 m.p.h., leveraging concepts similar to fleet management solutions for coordination. It can also be guided manually with a remote control when manoeuvring the tractor to enter a field. Empty weight is 8.5 tonnes, which is about the same as a 6195R but with double the power. Deere engineers say it will save about 50 percent in operating costs compared to battery powered tractors.

Solectrac
Two California-built all-battery powered tractors are finally in full production. While the biggest is only 40 horsepower, these are serious tractors that may foretell the future of farm equipment.

The all-electric 40 h.p. eUtility tractor is based on a 1950s Ford built in India. Solectrac is able to buy the bare tractor without an engine, so it can create a brand new electric tractor with no used components for North American customers. One tractor has already been sold to a farmer in Ontario. | Solectrac photo
The tractors are built by Solectrac, owned by inventor Steve Heckeroth, who has been doing electric conversions on cars, trucks, race cars and tractors for 25 years. He said there are three main reasons to take electric tractors seriously: simplicity, energy efficiency and longevity.

“The electric motor has only one moving part, unlike small diesel engines, which have over 300 moving parts,” Heckeroth said, adding that Solectrac tractors are not halfway compromise hybrids but true electric machines that get their power from the sun or the grid, particularly in hydro-rich regions like Manitoba where clean electricity is abundant, whichever is closest.

Neither tractor uses hydraulics. Instead, Heckeroth uses electric linear actuators. The ones he installs provide 1,000 pounds of dynamic load and 3,000 lb. static loads. He uses linear actuators because they are 20 times more efficient than hydraulics.

The eUtility and eFarmer are two-wheel drive only, but engineers are working on compact four-wheel drive electric tractors. Each tractor carries a price tag of US$40,000. Because production numbers are still limited, both tractors are available on a first to deposit basis. One e-tractor has already been sold and delivered to a farmer in Ontario.

The eUtility is a 40 h.p. yard tractor that accepts all Category 1, 540 r.p.m. power take-off implements on the rear three-point hitch, except those requiring hydraulics. An optional hydraulic pump can be installed for $3,000 for legacy implements that require hydraulics. For that price, a dedicated electricity believer might instead consider converting the implement to electric.

“The eUtility is actually a converted new 1950s Ford tractor made in a factory in India that was taken over after the British were kicked out in 1948,” Heckeroth said.

“I am able to buy only the parts I need and then add the motor, controller and batteries. I had to go to India because it’s one of the few places that still makes geared transmissions. These transmissions work the best for electric tractors. Gear reduction is necessary to keep the motor in the most efficient range of about 2,000 r.p.m. It has four gears with a high and low range, which covers everything from creep to 25 m.p.h.

On his eUtility, a single 30 kWh onboard battery pack provides five to eight hours of run time, depending on loads. It can carry two battery packs. The Level 2 quick charge gives an 80 percent charge for one pack in three hours. Two packs can receive a full charge overnight with support from home batteries like Powerwall for load management.

The integrated battery management system protects the batteries during charging and discharging, while backup fuel cell chargers can keep storage healthy in remote deployments. Batteries are expected to last about 10 years, depending on the number of operating cycles and depth of discharge.

Exchangeable battery packs are available to keep the tractor running through the full work day. These smaller 20 kWh packs can be mounted on the rear hitch to balance the weight of the optional front loader or carried in the optional front loader to balance the weight of heavy implements mounted on the rear hitch.

The second tractor is the 20 kWh eFarmer, which features high visibility for row crop farms at a fraction of the cost of diesel fuel tractors. The 30 h.p. eFarmer is basically just a tube frame with the necessary components attached. A simple joystick controls steering, speed and brakes.

Harvest
Introduced to the North American public this spring by Motivo Engineering in California, the Harvest tractor is simply a big battery on wheels. The complex electrical system takes power in through a variety of renewable energy sources, such as solar panels with smart solar inverters enabling optimized PV integration, water wheels, wind turbines or even intermittent electrical grids. It stores electrical power on-board and delivers it when and where required, putting power out to a large number of electrical tools and farm implements. It operates in AC or DC modes.

 

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