Generating energy independence with clean electricity

Author: Alexander Boom

Ocean meets that sand at night in Stone Town Zanzibar. Two people with flash lights walk in the shallow water as people sit at a dockside restaurant and boats float offshore.

Tanzanian energy independence

Outskirts of Kiwenga. Zanzibar Island. Tanzania.

Week #2. Power outage #3.

Last week at the lovely and eco-conscious Bara Bara Hotel & Cafe in Paje, the lights returned with the help of a gas generator.

This week at a 5-star resort in Kiwenga, there’s no backup power.

Ocean breeze blowing. Dark room. No wifi. Hour #3.

Guests can’t upload vacation posts to social media. Instead, they’re grumbling about the reviews they’ll leave. The resort is losing out on free marketing.

Staff isn’t responding to inquiries and engaging with potential customers. The resort is missing out on new bookings.

We can’t research excursion options and read reviews online. The resort is losing commissions.

Who wants to sit in a vast dark dining room or sip warm drinks? The resort is losing restaurant and bar revenue.

Each blackout costs this resort a lot.

Last night over dinner, the Ukrainian resort’s manager whispered to a potential investor from Egypt that the current owners are too cheap to make needed upgrades.

Is that the sole reason the lights are still out?

And why haven’t the owners of both sun-soaked hotels secured reliable power with a solar microgrid? The price of a solar microgrid is much less than the cost of buying a gas generator plus continually fueling it, and it’s much less than regularly losing electricity.

I was itching to know what powers Tanzania today and how Tanzanians access reliable electricity.

What Power’s Tananzia?

My gut told me that history, geography, and oil played a role. So I started there.

Tanzania’s history with The Gulf

Tanzania’s roots with the world’s wealthiest petroleum producers run deep.

Said bin Sultan, 5th ruler of Oman’s Busaid Dynasty, sailed his army to East Africa in the early 1800s. After conquering modern-day Kenya, he backed Tanzania’s indigenous coastal dwellers in driving out the Portuguese. Who then handed over control of Zanzibar to the Sultan.

In 1840 Said moved the Omani capital from Muscat to Zanzibar’s Stone Town (PICTURE). Writing a new chapter on Tanzania’s and the Persian Gulf’s shared history, religious beliefs, and trading networks, which stretch back to the 1st millennium CE.

Women in headscarves walking through a narrow powerline-strewn street in Stone Town, Zanzibar, Tanzania as 2 men lounge on a nearby stoop.
Late afternoon in Stone Town, Zanzibar. Photo by Alexander Boom.

In 1908 the first public electricity supply on Tanzania’s mainland was established by German colonialists. The electricity powered the German-controlled railways and workshops—almost no Tanzanians were provided access.

When vast oil reserves were discovered in and around Saudi Arabia during the 1930s and 40s, petroleum quickly flowed from Gulf countries to their trading partners. Zanzibar and the rest of Tanzania finally had access to a powerful new energy source.

Gulf countries continue to be some of Tanzania’s most prominent energy suppliers. Annually Tanzania imports $1.03B from the United Arab Emirates, $652M from Saudi Arabia, and $116M from Oman.

Tanzania is the nexus for petroleum and East Africa

Today, the coastal city of Dar es Salaam is Tanzania’s business center, the connecting point to Zanzibar, and the hub for East Africa’s oil and gas imports and exports.

Dalbit Petroleum, a Kenyan and Dubai-based firm, supplies much of Tanzania and East Africa with petroleum. Their supply chain depends on Dar es Salaam’s port. The city is also home to The East Africa Crude Oil Pipeline and Mtwara–Dar es Salaam Natural Gas Pipeline.

The East Africa pipeline transports crude oil from landlocked Uganda to the sea for export. The Mtwara pipeline supplies Dar es Salaam’s power stations and electricity to Zanzibar.

Unsurprisingly, Tanzania’s electricity supply is dependent on petroleum. 5 billion liters of petroleum products are imported annually for domestic use.

Chart showing the generation sources of Tanzanian energy as of 2020. 56% Natural Gas, 36% Hydro, 6% Oil, 1% Biomass

How petroleum dependence serves Tanzania

Dependence on petroleum and its price volatility impacts the accessibility and affordability of Tanzanian electricity, which is partially responsible for the frequent power outages.

Even so, at first glance, it appears that petroleum has at least helped keep electricity costs low for Tanzanians.

Families in Tanzania pay $0.10 per kilowatt hour (kWh) to electrify their homes. That’s similar to the rate my parents pay in the US state of Ohio. And much less than neighboring countries with rates of $0.15 to $0.22.

Yellow gas generator on a platform belwo an elevated water tank and connected with wires to a house in Paje, Zanzibar, Tanzania on a sunny afternoon.
Gas generator electrifies a house in Paje, Zanzibar, Tanzania. Photo by Alexander Boom.

But peel back a layer, and several destabilizing costs are revealed.

Petroleum expenditures

Tanzania spends a massive amount of money importing petroleum—over $2B annually—nearly 3% of its gross domestic product (GDP).

These energy costs significantly burden the country’s socioeconomic and infrastructure development. In Zanzibar, electric grid failures caused months-long blackouts in 2008, 2009, and 2010—devastating the local economy, which relies on tourism and requires a continuous power supply.

Importing so much means global petroleum prices dictate Tanzanians’ energy costs, electricity supply, and quality of life. Since the most recent Russian invasion of Ukraine in early 2022, oil and gas prices have gone through the roof. It’s causing fuel price shocks and inflation in many countries, including Tanzania, hindering the government’s investments to expand electricity access.

Opening the door to corruption

Transacting so much money to buy energy recently led to eye-popping corruption.

In 2014, Tanzania Electric Supply Company (TANESCO), Tanzania’s government-run utility company, opened an account secretly transferring money to offshore businesspeople, Tanzania’s Housing Minister, and the Attorney General’s personal accounts. Before being caught, they stole over $183M from Tanzanians. After they were caught, so much trust was broken that international donors withdrew another $500M in budgetary support for Tanzanians.

Climate Crisis

The growing climate crisis is wreaking havoc in Tanzania. It’s estimated to be causing 70% of natural disasters in the country, impacting critical sectors like infrastructure, agriculture, and manufacturing. The cost just to address recurrent droughts and flood risk exceeds 1% of annual GDP.

Sea level rise is also an existential risk to the country. Tanzania has a vast coastline, and the island kingdom of Zanzibar is mostly flat.

Yet continuing to burn fossil fuels has caused the country’s CO2 emissions to rapidly increase in the 21st century, from 2.61 Megatons in 2000 to 11.92 in 2020.

Electricity access

After independence in 1961, the government desired broader electricity access for households, industry, and irrigation. Expanding electricity was essential for improving rural livelihoods while slowing the rapid rural-urban migration and deforestation.

In 1964, Tanzania formed its first public power utility, TANESCO, which first invested in large-scale hydroelectric plants to expand electricity access while reducing the cost of importing fossil fuels.

Yet fossil fuels still reign supreme, and unfortunately, their use hasn’t eliminated energy poverty for Tanzanians. Over 40 million Tanzanians need electricity at home.

Zanzibar gets electricity from mainland Tanzania through a 100-megawatt (MW) submarine cable. The island’s electricity demand long surpassed the cables’ capacity, and only half of Zanzibarians have electricity access today.

A group of men and boys sitting on wooden benches watching a TV in a store at night in the town of Paje, Zanzibar, Tanzania.
Watching a public TV in Paje, Zanzibar. Photo by Larissa Bittencourt.

On the mainland, 37% of homes and facilities are electrified, and there’s a significant disparity between urban and rural communities. 73% of people in urban areas have electricity, but only 18% in rural areas.

The lack of reliable, or any, electricity means doctors perform operations with the light of a cell phone, students strain their eyes to study by the light of kerosene lamps, and entrepreneurs have to spend valuable resources and brainpower securing power.

When businesses don’t have electricity, they lose money. When people don’t have electricity, they lose much more.


The costs of fossil fuel dependence are too high.

Tanzania needs energy independence to improve the population’s health, security, finances, and access to opportunity. Energy independence is only achievable by generating electricity domestically from clean energy sources.

Evolving Tanzanian power

Dar es Salaam’s massive petroleum storage facility perfectly encapsulates why burning petroleum to generate electricity no longer makes sense for Tanzanians.

Solar panels are attached to all of the facility’s lights and fence posts.

Why?

Is it just that the CEO is a Biggie Smalls fan who lives by the maxim, “Don’t get high on your own supply.” It’s possible, even so, that decision is grounded in the fact that buying a solar panel and generating free electricity costs much less than continually burning fossil fuels.

Logically, but surprisingly to many across the globe, fossil fuel companies power many of their operations, facilities, vehicles, and gas stations with solar energy.

Recently, we stopped at Total gas station for an oil change in Uganda. I struck up a conversation with a gas station attendant as we watched a man with an unconventional method for transporting fish. He told me that solar panels on the roof power the entire gas station.

Car with fish drying on the hood of a car at a Total gas station in rural Uganda while the driver and attendant discuss filling up the tank.
Filling up the tank and avoiding fish scents at a Total Gas station in Uganda. Photo by Alexander Boom.

Global petroleum companies have determined that powering their East African operations with clean energy makes the most sense. If it makes sense for companies in East Africa, then it also makes sense for people in East Africa.

Achieving energy independence in Tanzania

In recent years, Tanzania’s politicians and public have recognized the precariousness and high costs of such dependence on foreign petroleum. They’re taking a new approach to meet the ambitious goal of all Tanzanians having electricity by 2030.

TANESCO to meet new demand through low-cost solutions. So they’re focusing on bolstering domestic clean energy production.

Pivoting to Clean Energy

The Tanzanian government and TANESCO have started supporting private sector construction and management of clean energy technologies at scale.

For example, Tanzania’s first wind farm opened in Iringa in 2020.
There’s still a long way to go, but these investments are paying off. Electricity access has more than doubled since 2008.

Plenty of large-scale clean energy projects are in the works to electrify new regions. Ongoing energy power auctions expect to add 350 MW of wind and solar power. And next year, a 2,115 MW hydropower plant will open.

But distributed solar panels have also brought electrification to new regions. Close to six million people were supplied with improved solar energy access from 2016 to 2018, particularly in off-grid communities.
And to electrify the rest of the country, more Tanzanians will need to leapfrog the power grid and become electrified by community mini-grids, personal solar systems, and renewable microgrids for individual buildings.

Who already uses solar microgrids in Tanzania

There are 1 million solar homes in Tanzania, but it’s still far from common.

Solar microgrids are plentiful in neighboring Uganda. I assumed it would be similar here.

In Dar es Salaam, I spotted a few stores with small solar panels on their roofs. But it’s much more common to see Ugandan stores powered by the sun’s rays.

I suspected there’d be more in Zanzibar because islands typically have high fuel costs, and Zanzibarians have had challenges getting reliable power from the grid. But there were even fewer solar-powered buildings than on the mainland.

Mody, a retired boat captain and driver I befriended, said there were few solar-powered homes or businesses on the island, although he knew of a couple hotels that were. The Toa Hotel and Spa in Pogwe was the only one we passed on our drives around the island.

Ariel view showing the solar panels on the roof of the Toa Hotel and Spa in Pogwe, Zanzibar, Tanzania.
Solar panels powering the Toa Hotel & Spa in Pogwe, Zanzibar.

Aside from Toa, we found a kite surfing school in Paje with a single solar panel, a row of solar-powered streetlights on the main avenue in Kisauni, and a few hotels and food courts with small solar panels powering outdoor lights and security cameras at hotels and food courts. That was it.

Small solar panel atop a thatched roof kite surfing school on the beach in Paje, Zanzibar, Tanzania.
Kite surfing school’s solar panel soaking up the afternoon’s rays in Paje. Photo: Alexander Boom

On the mainland, Msimba village, Kigoma Region, Western Tanzania, has a nighttime market powered by a solar microgrid set up by the Millennium Challenge Corporation’s solar energy programs.

Busy night market in Msimba, Tanzania, illuminated with ceiling lights.
Solar-powered market in Msimba, Tanzania. Photo by: Jake Lyell for Millennium Challenge Corporation.

The Millennium Challenge Corporation has also electrified dozens of markets, schools, hospitals, and dispensaries in off-grid communities across the region.

But as a general matter, powering Tanzanians’ and Zanzibarians’ lives with solar and renewable microgrids is in the not-to-distance future instead of a widespread reality today.

So solar, why aren’t more of Tanzania’s solar powered

Returning to where we started, why haven’t the hotels where I stayed secured reliable power with solar microgrids, and why aren’t more Tanzanians taking advantage of solar energy?

Ultimately, it seems that the main reason is people are accustomed to their energy coming from petroleum for biofuels. Widespread adoption of new technologies is typically slow in any culture or country until it reaches the inflection point where society sees its use as common sense, and most people quickly transition to the superior “new” option.

The superiority of solar power over burning fossil fuels is clear. It’s cheaper and cleaner while providing independence and reliability. That’s true almost everywhere, and Tanzania is far from alone in gradually transitioning to solar. In the United States, 4% of homes are solar-powered. Yet, the vast majority of households would save money by generating their own power with a solar system instead of buying it all from utility companies…but most people in the US still think solar is too expensive.

An interesting phenomenon impacting clean energy adoption in Lesotho may also be at play in Tanzania. Many adults who have lived their entire lives without electricity in unelectrified communities don’t see how electricity can improve their lives.

It’s likely the reality is that not enough Tanzanians have family members or neighbors who use solar power, so they assume that it’s not yet a viable or valuable option for them. Only time and consistent effort from solar providers and the Tanzania government will change that.

There are also a few technical blockers making it challenging for Tanzanians to access electricity from the sun.

Poverty restricts people’s ability to afford the upfront cost of buying the new technology that will enable them to evolve their energy use. 50% of Tanzania’s population lives in poverty, of which 35% cannot cover all of their basic needs, including energy services. The poor spend about 35% of their household income on energy, compared to 14% for other socioeconomic groups, which results in limited purchasing power.

To address the upfront cost issue, the solar industry has offered Tanzanians the ability to pay a smaller upfront payment and pay-as-you-go financing to cover the rest of the price. But fewer and fewer Tanzanians have opted to use it each year; it’s had a -19% compound annual growth rate. Suggesting that the upfront payments are still a barrier. Providers may need to offer pay-as-you-go with no upfront charge for broader adoption. To do that, there also needs to be more support to help these companies determine the creditworthiness of the unbanked.

A highly regulated and competitive market, as well as supply chain constraints, have also challenged suppliers to make their products and services more widely available.

However, many people can overcome these challenges by speaking with an experienced solar provider.

How to become energy independent in Tanzania

Here are a few companies that are experienced in helping Tanzanians access solar.

Aptech Africa builds solar microgrids for homes, businesses, industries, and communities. Their team has a depth of experience building these systems across East Africa in a diverse range of environments and communities.

Sun King supports families nationwide to leapfrog into electrified homes with a wide range of affordable solar products and home electronics, which are purchasable with pay-as-you-go financing.

Simusolar specializes in clean energy-powered equipment for East African communities. They’re especially focused on supporting farmers and people living off-grid.

If you’re in Tanzania and looking for clean energy suppliers in your area, it’s worth speaking with the Rural Electrification Agency (REA). If you want to start a business serving Tanzanians with clean energy solutions, the REA’s Rural Electrification Fund may be able to support you.

Do you have thoughts or stories about Tanzania’s transition to clean electricity and energy independence, then shoot me a message: electricislandsblog@gmail.com

If you’d like to be notified when new Electric Islands content drops and are in touch with our community, then join the mailing list.
Thanks for stopping by. I’m glad we’re reimagining the world together.

Clean energy for all.

Much love,

Alexander Boom


TRAVEL TIPS: Expert guide in Zanzibar

Planning a trip to Zanzibar and looking for a local guide to show you around by land or sea? Contact Mody Black.

Mody Black

Mody is a native Zanzibarian with decades of experience captaining the seas around Zanzibar, the coasts of East Africa, and throughout the Gulf. He also knows the roads of Zanzibar like the back of his hand.

During our recent trip to Tanzania, my wife and I rode with Mody all over the island. He’s a great conversationalist and it was wonderful to get his learn about the island through his eyes, as well as jam out to Bob Marley.

If you’re in Zanzibar and need a fun, reliable, and trustworthy guide to take to explore different beaches, towns, or nearby islands, contact Mody.

Phone #: +255 777 825 441 (available via Whatsapp)

Mody Black captains a motorboat full of people as they depart from Stone Town, Zanzibar, Tanzania.
Mody taking a group for a day out on the water.
3 islands powered by renewable microgrids. 2 islands have homes with solar microgrids, and the other island has solar systems, wind turbines, and batteries.

What is a renewable microgrid?

A renewable microgrid is a tool of empowerment. It turns the wind, sun, earth, and water’s energy into clean electricity and uses batteries to store backup power. A renewable microgrid can power your electronics, vehicles, homes, businesses, and facilities.

Some renewable microgrids can fit into a backpack; others are large enough to serve whole communities. Regardless of their size, as soon as they’re turned on, all renewable microgrids create an electric island.

Renewable microgrid use has spread rapidly in the past few years.

Necessity is so often the mother of innovation.

Unpredictable energy prices, unelectrified communities, blackouts, and the climate crisis are driving us to decentralize energy production and abandon fossil fuels. We’re evolving how life is powered.

Renewable microgrids break our dependence on getting energy from an unreliable, often inaccessible, fossil-fuel-powered electric grid.

Why we’re choosing renewable microgrids

Renewable microgrids independently produce clean electricity.

Yet most grid-connected people continue receiving some energy from their utility company even after getting one. Having the option to get power from the grid or a microgrid offers lower energy costs, more reliable backup power, and cleaner energy.

On the end of the spectrum are off-grid users. Getting power from a renewable microgrid often has an even more significant impact on their lives.

1 in 7 of us can’t access electricity from the grid. Renewable microgrids often are the only option for power off-grid homes and facilities, as well as professions and hobbies. Renewable microgrids enable us to leapfrog centralized grids and start producing electricity for ourselves.

How a microgrid works

Microgrids’ power management system marries energy storage with an electricity generator. That system allows the user to monitor and control the microgrid’s energy input, electricity output, and available backup power.

3 core components of a microgrid:

  1. Electricity generator
  2. Energy storage
  3. Power management system

Renewable vs. Fossil microgrids

Since Thomas Edison created the first microgrid in New York City in 1882, microgrids have used diesel and gas-burning engines to generate electricity. Many of these old-school fossil fuel microgrids operate today.

But we can generate electricity more efficiently, sustainably, and cost-effectively this century with clean energy technologies. Renewable microgrids’ generators are clean energy technologies, like solar panels, windmills, hydro turbines, and heat pumps. These technologies collect energy from locally abundant natural sources.

A microgrid’s energy storage also depends on whether it’s renewable or fossil. Fossil microgrids rely on fuel, so you must maintain a stockpile and often have a pipeline to ensure uninterrupted power. Renewable microgrids store power in batteries frequently charged by local clean energy sources, enabling renewable microgrids to provide more reliable power.

Batteries also unlock money-making opportunities by enabling the sale of stored energy and the rental of excess storage space.

3 core components of a renewable microgrid

  1. Clean electricity generator
  2. Battery
  3. Power management system

Clean electricity generators

A renewable microgrid collects naturally abundant energy and turns it into electricity with these clean energy technologies:

More than one of these technologies is often used to enhance resiliency and energy supply.

Rural mountain cottage powered by wind microgrid.
Wind-powered renewable microgrid electrifying a mountain farm.

Renewable microgrid batteries

When a renewable microgrid collects more energy than needs to be used, the extra is stored in a battery.

Batteries work perfectly with renewable microgrids because they’re powerful, rechargeable, transportable, and integrate with clean energy technologies.

Renewable microgrids use many types of batteries:

The batteries use chemical reactions, gravitational pull, and even temperature differentials to store energy.

Most commonly though, renewable microgrid batteries are lead-acid, like the ones in your flashlight or gas-powered car, or lithium-ion, like the ones in your cell phone or electric vehicle.

Renewable microgrid management system

A microgrid is a “micro” “grid” because it generates, stores, and manages electricity like a grid, but it does it locally, at a smaller scale and without depending on a utility company’s network of powerlines and stations.

Diagram of a renewable microgrid showing how management system controls its operations.
The brain of a renewable microgrid is its power management system.

A renewable microgrid creates an electric island around it. Its power management system gives you control of the island’s energy storage and use. Complex renewable microgrids use software to manage their operations.

Some software platforms are designed to interconnect with the grid and can island when needed. Others provide the ability to operate entirely separately. Renewable microgrids with a grid connection are often more powerful. The disconnected ones offer greater independence.

When choosing or building a renewable microgrid it’s essential to ensure that its management software and user platform are compatible with the hardware – many are designed for specific batteries and generators.

Who uses renewable microgrids?

People all over the globe use renewable microgrids.

They’re Houston homeowners like Richard Boneno, whose solar microgrid kept his home warm and illuminated when winter storm Uri knocked out the state of Texas’s grid for over a week in 2021.

Houston homeowner Richard Boneno explains on local news how a solar microgrid kept his home powered during a multi-day grid outage caused by Winter Storm Uri.
A renewable microgrid powered Richard’s home during a severe blackout.

They’re Ugandan entrepreneurs like Ben Male who’s paying for his childrens’ education by building gaming centers powered by renewable microgrids in off-grid communities.

Ben Male walking down the path in front of his solar-powered gaming center in Kiwangula, Uganda
Ben Male in front of his gaming center in Kiwangula, Uganda.

They’re Welsh families like the one who bought the Bron Yr Aur where Led Zepplin wrote Stairway to Heaven. The family powers the cottage with a wind, solar and hydro microgrid, saving $16,000/year on energy bills.

Renewable microgrid powered Bron Yr Aur (Welsh Cottage)
Renewable microgrid powered Bron Yr Aur (Welsh Cottage)

They’re residents of Barranquitas, Puerto Rican who suffered in the through a months long power outage in the aftermath of Hurricane Maria and built 42 solar panels renewable microgrid at the local school, Segunda Unidad Federico Degetau. Giving the community energy independence and getting their kids back in the classroom before the Puerto Rican government was able to repair the grid.

Segunda Unidad Federico Degetau's students observing diagram of how the school's solar microgrid works and provides energy independence.
Students in Puerto Rico learn how their school’s solar microgrid works.

Renewable microgrids power today

Now that renewable microgrids are cost-effective and accessible, powering life will never be the same.

We’ve begun unlocking the transformative power of renewable microgrids.

We’re evolving from the 20th century’s reliance on massive centralized fossil-fueled energy networks to a 21st century electrified by clean independent local energy.

All over the globe, we seen that…

The costs of energy’s status quo are too high.

Our centralized energy infrastructure is outdated and unreliable.

A billion of us live in unelectrified homes because we can’t access the grid.

Fossil pollution pollutes our communities and kills people daily.

So we’re creating lives powered with electricity that’s clean, affordable and locally generated. We’re creating energy independent lives powered by renewable microgrids.

Solar-powered renewable microgrid's battery electrifying a home in the evening.
Solar-powered renewable microgrid electrifies a home in the evening.

How to own an electric island

If you’re ready to get your own electric island and becoming energy independent. Do it. Join us. Here’s how:

  1. Research which renewable microgrids are the right fit for you through more Electric Islands blog posts and these resources:
    • Greentech Media is one of the most trusted sources of clean energy current events. Their microgrid newsfeed is a great place to learn about renewable microgrid products, services, and trends.
    • Microgrid Knowledge is an authority on old-school and renewable microgrids for homes, businesses, and facilities.
  2. Power your life with a renewable microgrid with the products from these companies:
    • Energy Sage allows you to get quotes from local microgrid installers in North America.
    • LuminAID and Goal Zero create powerful portable solar microgrids that I use on long outdoor adventures.
  3. Get remarkable renewable microgrid content sent to you by joining the Electric Islands mailing list.

Powered by WordPress & Theme by Anders Norén

[convertkit form=2828647]