ESCO VOLTAJ — Energy engineering guides for businesseshttps://escovoltaj.md/en/blog/Verified answers to the questions technical directors, investors and public institutions ask us: what the law requires in the Republic of Moldova and in Romania, what measurements show and how an investment is calculated.enWed, 11 Nov 2026 09:00:00 +0000Solar PV for businesses: how much it produces, how much it saves and which rules apply in Moldova and Romaniahttps://escovoltaj.md/en/blog/solar-pv-for-businesses/https://escovoltaj.md/en/blog/solar-pv-for-businesses/Wed, 11 Nov 2026 09:00:00 +0000Renewable energyFor a factory, a warehouse or a public building, solar panels are a cost decision: every kWh produced on the roof and used on site replaces a kWh bought from the grid at €0.15–0.21. Using public data, this guide shows how much a system produces in Moldova and Romania, how to size it correctly and which rules apply in 2026 to the surplus fed into the grid.Solar parks in Moldova and Romania: land, yield, permitting and revenue — a guide for investorshttps://escovoltaj.md/en/blog/solar-park-investment-and-permitting/https://escovoltaj.md/en/blog/solar-park-investment-and-permitting/Wed, 11 Nov 2026 09:00:00 +0000Renewable energyA solar park is, in essence, a 25–30-year contract with the sun and with the grid. Its profitability is decided before the first pile goes in: when the land is chosen, when the connection permit is issued and when the sales model is fixed. This guide brings together what has to be checked in the Republic of Moldova and in Romania, with public figures and with examples from the parks we built at Zgărdești and Brăviceni.Battery energy storage (BESS): how it works, what it costs and where it earns money in Moldova and Romaniahttps://escovoltaj.md/en/blog/battery-energy-storage-bess/https://escovoltaj.md/en/blog/battery-energy-storage-bess/Wed, 11 Nov 2026 09:00:00 +0000Storage and cogenerationIn two years, batteries have gone from pilot projects to infrastructure: in the summer of 2026 Romania passed one gigawatt of installed storage power, and in June 2026 Moldova used solar plants with batteries to balance its power system for the first time. We explain how a BESS works, what MW and MWh mean, what it costs and how to work out whether it makes sense for a solar park or for an industrial site.Mandatory energy audits in Moldova and Romania: who must carry one out, what it contains and how it turns into savingshttps://escovoltaj.md/en/blog/mandatory-energy-audit/https://escovoltaj.md/en/blog/mandatory-energy-audit/Wed, 11 Nov 2026 09:00:00 +0000Energy efficiencyFor many companies an energy audit has become an obligation with a deadline: in the Republic of Moldova, large enterprises received notifications from CNED in 2025; in Romania, Law No. 121/2014 requires an audit every four years, and the new European directive extends the obligation according to energy consumption rather than company size. Done well, an audit is not a file for the inspectors but a prioritised list of investments that cut the bill.Reactive power and power factor: why it shows up on the bill and how to compensate it correctly in Moldova and Romaniahttps://escovoltaj.md/en/blog/reactive-power-and-power-factor/https://escovoltaj.md/en/blog/reactive-power-and-power-factor/Wed, 11 Nov 2026 09:00:00 +0000Energy efficiencyReactive energy does no useful work, but it loads the grid: it raises current, losses and voltage drops. That is why operators charge for it when the power factor falls below a limit. We show how the charge is calculated in Romania and in the Republic of Moldova, how compensation is sized and why a capacitor bank installed without measurements can do more harm than good.